Author name: Paul Patrick

we-saw-the-heart-of-pluto-10-years-ago—it’ll-be-a-long-wait-to-see-the-rest

We saw the heart of Pluto 10 years ago—it’ll be a long wait to see the rest


A 50-year wait for a second mission wouldn’t be surprising. Just ask Uranus and Neptune.

Four images from New Horizons’ Long Range Reconnaissance Imager (LORRI) were combined with color data from the spacecraft’s Ralph instrument to create this enhanced color global view of Pluto. Credit: NASA/Johns Hopkins University/SWRI

NASA’s New Horizons spacecraft got a fleeting glimpse of Pluto 10 years ago, revealing a distant world with a picturesque landscape that, paradoxically, appears to be refreshing itself in the cold depths of our Solar System.

The mission answered numerous questions about Pluto that have lingered since its discovery by astronomer Clyde Tombaugh in 1930. As is often the case with planetary exploration, the results from New Horizons’ flyby of Pluto on July 14, 2015, posed countless more questions. First and foremost, how did such a dynamic world come to be so far from the Sun?

For at least the next few decades, the only resources available for scientists to try to answer these questions will be either the New Horizons mission’s archive of more than 50 gigabits of data recorded during the flyby, or observations from billions of miles away with powerful telescopes on the ground or space-based observatories like Hubble and James Webb.

That fact is becoming abundantly clear. Ten years after the New Horizons encounter, there are no missions on the books to go back to Pluto and no real prospects for one.

A mission spanning generations

In normal times, with a stable NASA budget, scientists might get a chance to start developing another Pluto mission in perhaps 10 or 20 years, after higher-priority missions like Mars Sample Return, a spacecraft to orbit Uranus, and a probe to orbit and land on Saturn’s icy moon Enceladus. In that scenario, perhaps a new mission could reach Pluto and enter orbit before the end of the 2050s.

But these aren’t normal times. The Trump administration has proposed cutting NASA’s science budget in half, jeopardizing not only future missions to explore the Solar System but also threatening to shut down numerous operating spacecraft, including New Horizons itself as it speeds through an uncharted section of the Kuiper Belt toward interstellar space.

The proposed cuts are sapping morale within NASA and the broader space science community. If implemented, the budget reductions would affect more than NASA’s actual missions. They would also slash NASA’s funding available for research, eliminating grants that could pay for scientists to analyze existing data stored in the New Horizons archive or telescopic observations to peer at Pluto from afar.

The White House maintains funding for newly launched missions like Europa Clipper and an exciting mission called Dragonfly to soar through the skies of Saturn’s moon Titan. Instead, the Trump administration’s proposed budget, which still must be approved by Congress, suggests a reluctance to fund new missions exploring anything beyond the Moon or Mars, where NASA would focus efforts on human exploration and bankroll an assortment of commercial projects.

NASA’s New Horizons spacecraft undergoing launch preparations at Kennedy Space Center, Florida, in September 2005. Credit: NASA

In this environment, it’s difficult to imagine the development of a new Pluto mission to begin any time in the next 20 years. Even if Congress or a future presidential administration restores NASA’s planetary science budget, a Pluto mission wouldn’t be near the top of the agency’s to-do list.

The National Academies’ most recent decadal survey prioritized Mars Sample Return, a Uranus orbiter, and an Enceladus “Orbilander” mission in their recommendations to NASA’s planetary science program through 2032. None of these missions has a realistic chance to launch by 2032, and it seems more likely than not that none of them will be in any kind of advanced stage of development by then.

The panel of scientists participating in the latest decadal survey—released in 2022—determined that a second mission to Pluto did not merit a technical risk and cost evaluation report, meaning it wasn’t even shortlisted for consideration as a science priority for NASA.

There’s a broad consensus in the scientific community that a follow-up mission to Pluto should be an orbiter, and not a second flyby. New Horizons zipped by Pluto at a relative velocity of nearly 31,000 mph (14 kilometers per second), flying as close as 7,750 miles (12,500 kilometers).

At that range and velocity, the spacecraft’s best camera was close enough to resolve something the size of a football field for less than an hour. Pluto was there, then it was gone. New Horizons only glimpsed half of Pluto at decent resolution, but what it saw revealed a heart-shaped sheet of frozen nitrogen and methane with scattered mountains of water ice, all floating on what scientists believe is likely a buried ocean of liquid water.

Pluto must harbor a wellspring of internal heat to keep from freezing solid, something researchers didn’t anticipate before the arrival of New Horizons.

New Horizons revealed Pluto as a mysterious world with icy mountains and very smooth plains. Credit: NASA

So, what is Pluto’s ocean like? How thick are Pluto’s ice sheets? Are any of Pluto’s suspected cryovolcanoes still active today? And, what secrets are hidden on the other half of Pluto?

These questions, and more, could be answered by an orbiter. Some of the scientists who worked on New Horizons have developed an outline for a conceptual mission to orbit Pluto. This mission, named Persephone for the wife of Pluto in classical mythology, hasn’t been submitted to NASA as a real proposal, but it’s worth illustrating the difficulties in not just reaching Pluto, but maneuvering into orbit around a dwarf planet so far from the Earth.

Nuclear is the answer

The initial outline for Persephone released in 2020 called for a launch in 2031 on NASA’s Space Launch System Block 2 rocket with an added Centaur kick stage. Again, this isn’t a realistic timeline for such an ambitious mission, and the rocket selected for this concept doesn’t exist. But if you assume Persephone could launch on a souped-up super heavy-lift SLS rocket in 2031, it would take more than 27 years for the spacecraft to reach Pluto before sliding into orbit in 2058.

Another concept study led by Alan Stern, also the principal investigator on the New Horizons mission, shows how a future Pluto orbiter could reach its destination by the late 2050s, assuming a launch on an SLS rocket around 2030. Stern’s concept, called the Gold Standard, would reserve enough propellant to leave Pluto and go on to fly by another more distant object.

Persephone and Gold Standard both assume a Pluto-bound spacecraft can get a gravitational boost from Jupiter. But Jupiter moves out of alignment from 2032 until the early 2040s, adding a decade or more to the travel time for any mission leaving Earth in those years.

It took nine years for New Horizons to make the trip from Earth to Pluto, but the spacecraft was significantly smaller than an orbiter would need to be. That’s because an orbiter has to carry enough power and fuel to slow down on approach to Pluto, allowing the dwarf planet’s weak gravity to capture it into orbit. A spacecraft traveling too fast, without enough fuel, would zoom past Pluto just like New Horizons.

The Persephone concept would use five nuclear radioisotope power generators and conventional electric thrusters, putting it within reach of existing technology. A 2020 white paper authored by John Casani, a longtime project manager at the Jet Propulsion Laboratory who died last month, showed the long-term promise of next-generation nuclear electric propulsion.

A relatively modest 10-kilowatt nuclear reactor to power electric thrusters would reduce the flight time to Pluto by 25 to 30 percent, while also providing enough electricity to power a radio transmitter to send science data back to Earth at a rate four times faster, according to the mission study report on the Persephone concept.

However, nuclear electric propulsion technologies are still early in the development phase, and Trump’s budget proposal also eliminates any funding for nuclear rocket research.

A concept for a nuclear electric propulsion system to power a spacecraft toward the outer Solar System. Credit: NASA/JPL-Caltech

A rocket like SpaceX’s Starship might eventually be capable of accelerating a probe into the outer Solar System, but detailed studies of Starship’s potential for a Pluto mission haven’t been published yet. A Starship-launched Pluto probe would have its own unique challenges, and it’s unclear whether it would have any advantages over nuclear electric propulsion.

How much would all of this cost? It’s anyone’s guess at this point. Scientists estimated the Persephone concept would cost $3 billion, excluding launch costs, which might cost $1 billion or more if a Pluto mission requires a bespoke launch solution. Development of a nuclear electric propulsion system would almost certainly cost billions of dollars, too.

All of this suggests 50 years or more might elapse between the first and second explorations of Pluto. That is in line with the span of time between the first flybys of Uranus and Neptune by NASA’s Voyager spacecraft in 1986 and 1989, and the earliest possible timeline for a mission to revisit those two ice giants.

So, it’s no surprise scientists are girding for a long wait—and perhaps taking a renewed interest in their own life expectancies—until they get a second look at one of the most seductive worlds in our Solar System.

Photo of Stephen Clark

Stephen Clark is a space reporter at Ars Technica, covering private space companies and the world’s space agencies. Stephen writes about the nexus of technology, science, policy, and business on and off the planet.

We saw the heart of Pluto 10 years ago—it’ll be a long wait to see the rest Read More »

a-new-martian-climate-model-suggest-a-mostly-cold,-harsh-environment

A new Martian climate model suggest a mostly cold, harsh environment

“Very early in Mars’ history, maybe 4 billion years ago, the planet was warm enough to support lakes and river networks,” Kite told Ars. “There were seas, and some of those seas were as big as the Caspian Sea, maybe bigger. It was a wet place.” This wet period, though, didn’t last long—it was too short to make the landscape deeply weathered and deeply eroded.

Kite’s team used their model to focus on what happened as the planet got colder, when the era of salts started. “Big areas of snowmelts created huge salt flats, which eventually built up over time, accumulating into a thick sedimentary deposit Curiosity rover is currently exploring,” Kite said. But the era of salts did not mark the end of liquid water on the Martian surface.

Flickering habitability

The landscape turned arid, judging by Earth’s standards, roughly 3.5 billion years ago. “There were long periods when the planet was entirely dry,” Kite said. During these dry periods, Mars was almost as cold as it is today. But once in a while, small areas with liquid water appeared on the Martian surface like oases amidst an otherwise unwelcoming desert. It was a sterile planet with flickering, transient habitable spots with water coming from melted snow.

This rather bleak picture of the Martian landscape’s evolution makes questions about our chances for finding traces of life in there tricky.

“You can do a thought experiment where you take a cup of water from the Earth’s ocean and pour it into one of those transient lakes on Mars,” Kite said. “Some microbes in this cup of water would do fine in such conditions.” The bigger question, he thinks, is whether life could originate (rather than just survive) on ancient Mars. And, perhaps more critically, whether hypothetical life that originated even before the salts era, when the planet was warm and wet, could persist in the oases popping up in the Kite’s model.

The answer, sadly, is probably not.

A new Martian climate model suggest a mostly cold, harsh environment Read More »

a-mess-of-its-own-making:-google-nerfs-second-pixel-phone-battery-this-year

A mess of its own making: Google nerfs second Pixel phone battery this year

Not all batteries age the same way. Some problems will appear quickly, but others won’t be noticeable until after many charge/discharge cycles. A few years back, Samsung released the Galaxy Note 7 with a slightly larger battery than the previous model. Within weeks, the phones started to catch fire, and even after swapping in a different battery pack, the issue persisted. It was a huge mess that led to a recall and steep financial losses.

Samsung’s battery missteps may have prompted manufacturers to take possible battery defects more seriously. So when Google detected problems with aging Pixel 4a batteries, it didn’t take any chances. It decided to degrade the experience on the remaining Pixel 4a units out there, even if the lower capacity and slower charging upset users. When Pixel 6a units started to catch fire again, Google decided to simply limit battery performance.

Pixel 6a update

The mandatory Android 16 July update will limit battery charging speed and capacity on affected phones.

Credit: Ryan Whitwam

The mandatory Android 16 July update will limit battery charging speed and capacity on affected phones. Credit: Ryan Whitwam

Pixel 4a units contained one of two different batteries, and only the one manufactured by a company called Lishen was downgraded. For the Pixel 6a, Google has decreed that the battery limits will be imposed when the cells hit 400 charge cycles. Beyond that, the risk of fire becomes too great—there have been reports of Pixel 6a phones bursting into flames.

Clearly, Google had to do something, but the remedies it settled on feel unnecessarily hostile to customers. It had a chance to do better the second time, but the solution for the Pixel 6a is more of the same.

A problem of Google’s making

Like other smartphone manufacturers, Google moved away from offering removable batteries in the 2010s to make phones slimmer and more durable. Smartphone makers largely dismissed the concerns of repair advocates who pointed out that lithium-ion batteries degrade over time, and making them difficult to remove wasn’t the best idea. However, this was a time when people only kept smartphones for a year or two before upgrading, but we have since entered an era in which people use phones for much longer. The way phones are marketed has changed to reflect that—Google has enacted longer support windows, topping out at seven years for its latest phones.

A mess of its own making: Google nerfs second Pixel phone battery this year Read More »

life-after-two-stroke:-rotax-electrifies-its-bike-and-kart-powertrains

Life after two-stroke: Rotax electrifies its bike and kart powertrains

Whether I was riding in the rain in Austria or the blazing heat of the Texas sun (115° F/46° C), Rotax’s focus on thermal management kept the two Can-Am bikes ready to deliver the expected power at any speed. It’s not only a tremendous feat of engineering, but on the road, it can mean the difference between life and death.

The Can-Am Pulse is the other Can-Am motorbike to use Rotax’s electric powertrain.

Motorcycle riders are keenly aware—because we are routinely reminded—that our method of transportation is inherently dangerous. We straddle a motor connected to two wheels with a metal frame holding it all together. While astride these machines, it’s important that everything works as expected. More so than inside a car, counting on the brakes and powertrain to perform as anticipated is extremely important. Thermal fade in a car isn’t great. Thermal fade in a motorcycle could lead to a life-threatening situation.

For a company that has been building motors for itself and other bike makers, the importance of creating a vehicle that performs as expected is likely not lost on Rotax.

The company is also aware that the rest of the motorcycle industry is likely keeping an eye of the Can-Am bike sales. “They know what we did in the power sports industry, that we are a serious company with design, development, manufacturing capabilities, an international footprint, an international global supply base, and we have the knowledge to do great products. If I [were] them, I would be watching us,” Gebetshuber said.

Like other businesses, Rotax is trying to deal with the fallout of the United States’ chaotic tariff situation. Gebetshuber notes that the company doesn’t want to comment on politics but, “what we can say is the environment is currently very difficult, because changes are happening faster than we’re able to react.”

You’ll find Rotax’s motors in a number of other OEMs’ bikes. Credit: Rotax

It does help with development that nearly everything is done in-house. The motors are built at a Rotax facility. The bikes are put together at another. Development is done in Austria. Nearly everything on the Can-Am bikes is either built by Rotax or, in the case of the inverter on the electric platform, built to Rotax specifications.

Life after two-stroke: Rotax electrifies its bike and kart powertrains Read More »

in-the-southwest,-solar-panels-can-help-both-photovoltaics-and-crops

In the Southwest, solar panels can help both photovoltaics and crops


Cultivation in a harsh climate

Solar arrays can shade crops from sun while moisture cools the panels to increase their productivity.

Volunteers with the National Renewable Energy Laboratory work at Jack’s Solar Garden in Longmont, Colorado. Credit: Bryan Bechtold/NREL

This article originally appeared on Inside Climate News, a nonprofit, non-partisan news organization that covers climate, energy, and the environment. Sign up for their newsletter here.

“We were getting basil leaves the size of your palm,” University of Arizona researcher Greg Barron-Gafford said, describing some of the benefits he and his team have seen farming under solar panels in the Tucson desert.

For 12 years, Barron-Gafford has been investigating agrivoltaics, the integration of solar arrays into working farmland. This practice involves growing crops or other vegetation, such as pollinator-friendly plants, under solar panels, and sometimes grazing livestock in this greenery. Though a relatively new concept, at least 604 agrivoltaic sites have popped up across the United States, according to OpenEI.

Researchers like Barron-Gafford think that, in addition to generating carbon-free electricity, agrivoltaics could offer a ray of hope for agriculture in an increasingly hotter and drier Southwest, as the shade created by these systems has been found to decrease irrigation needs and eliminate heat stress on crops. Plus, the cooling effects of growing plants under solar arrays can actually make the panels work better.

But challenges remain, including some farmers’ attitudes about the practice and funding difficulties.

Overcoming a climate conundrum

While renewable electricity from sources like solar panels is one of the most frequently touted energy solutions to help reduce the carbon pollution that’s driving climate change, the warming climate itself is making it harder for solar arrays to do their job, Barron-Gafford said. An optimal functioning temperature for panels is around 75° Fahrenheit, he explained. Beyond that, any temperature increase reduces the photovoltaic cells’ efficiency.

“You can quickly see how this solution for our changing climate of switching to more renewable energy is itself sensitive to the changing climate,” he said.

This problem is especially pertinent in the Southwest, where historically hot temperatures are steadily increasing. Tucson, for instance, saw a record-breaking 112 days of triple-digit heat in 2024, according to National Weather Service Data, and the US Environmental Protection Agency reports that every part of the Southwest experienced higher average temperatures between 2000 and 2023 compared to the long-term average from 1895 to 2023.

However, planting vegetation under solar panels—as opposed to the more traditional method of siting solar arrays on somewhat barren land—can help cool them. In one set of experiments, Barron-Gafford’s team found that planting cilantro, tomatoes and peppers under solar arrays reduced the panels’ surface temperature by around 18 degrees Fahrenheit. That’s because plants release moisture into the air during their respiration process, in which they exchange oxygen for carbon dioxide.

“This invisible power of water coming out of plants was actually cooling down the solar panels,” Barron-Gafford said.

Throwing shade

While Barron-Gafford said some laughed him off when he first proposed the idea of growing crops in the shade of solar panels, this added sun shield can actually help them grow better, especially in the Southwest, where many backyard gardeners already employ shade cloths to protect their gardens from the blazing heat.

“Many people don’t understand that in Colorado and much of the West, most plants get far too much sunlight,” said Byron Kominek, owner/manager of Jack’s Solar Garden in Boulder County, Colorado, which began implementing agrivoltaics in 2020. “Having some shade is a benefit to them.”

Jack’s Solar Garden has integrated 3,276 solar panels over about four acres of farmland, growing crops like greens and tomatoes. Meg Caley with Sprout City Farms, a nonprofit that helps with farming duties at Jack’s Solar Garden, said they’ve been able to produce Swiss chard “the size of your torso.”

“The greens just get huge,” she said. “You have to chop them up to fit them in your refrigerator.”

She added that the shade seems to improve the flavor of the vegetables and prevents them from bolting, when plants prematurely produce flowers and seeds, diverting energy away from leaf or root growth.

“Plants when they’re stressed out can have more of a bitter flavor,” she explained. “So the arugula that we grow is not as bitter or spicy. It’s sweeter. The spinach is sweeter too.”

Barron-Gafford and his team are seeing the same thing in Arizona, where they grow a variety of produce like beans, artichokes, potatoes, kale, and basil.

“We’ve grown 30-plus different types of things across different wet winters and dry winters and exceptionally hot summers, dry summers, average or close to average summers,” he said of the solar-shaded crops. “And across everything we’ve done, we’ve seen equal or greater production down here in the Southwest, the dry land environments, where it really benefits to get some shade.”

As in Colorado, some of those crops are growing to epic proportions.

“We’ve made bok choy the size of a toddler,” Barron-Gafford said.

All that shade provides another important benefit in a drought-stricken Southwest—lower water requirements for crops. Because less direct sunlight is hitting the ground, it decreases the evaporation rate, which means water stays in the soil longer after irrigation. Barron-Gafford and his team have been running experiments for the last seven or so years to see how this plays out with different crops in an agrivoltaic setting.

“What is the evaporation rate under something that’s big and bushy like a bean or potato plant versus something thinner above ground, like a carrot?” is one of the questions Barron-Gafford said they have tried to answer. “For the most part, I would say that we are able to cut back our irrigation by more than half.”

They are partnering with Jack’s Solar Farm on water research in Colorado and have so far found similar results there.

This shade has another benefit in a warming world—respite for farmworkers. Heat-related illnesses are a growing concern for people who work outside, and one recent study predicted climate change will quadruple U.S. outdoor workers’ exposure to extreme heat conditions by 2065.

But with solar arrays in the fields, “if you really carefully plan out your day, you can work in the shade,” a factor that can help increase worker safety on hot days, Caley said.

The AgriSolar Clearinghouse performed skin temperature readings under solar panels and full sun at a number of sites across the United States, finding a skin temperature decrease of 15.3° in Boulder and 20.8° in Phoenix.

“I don’t know what the future holds”

Despite the benefits of agrivoltaics, the up-front cost of purchasing a solar array remains a barrier to farmers.

“Once people see the potential of agrivoltaics, you run into the next challenge, which is how do you fund someone getting into this on their site?” Barron-Gafford said. “And depending on the amount of capital or access to capital that a farmer has, you’re going to get a wildly different answer.”

While expenses are dependent on the size of the installation, a 25-kilowatt system would require an upfront cost of around $67,750, according to AgriSolar Clearinghouse. For comparison, the median size of a residential solar array in 2018 was around 6 kW, the organization stated, which would cost around $16,260 to install.

Kominek said the total initial cost of implementing a 1.2 megawatt capacity agrivoltaics setup on his farm in Colorado was around $2 million, but that the investment has paid off. In addition to the revenue he earns from farming, all of the energy produced by the arrays is sold to clients in the community through a local utility company, earning the farm money.

The Rural Energy for America program has been one resource for farmers interested in agrivoltaics, offering loans and grants to help install solar. However, it’s unclear how this program will move forward amid current federal spending cuts.

Meanwhile, some of the federal grant programs that Barron-Gafford has relied on have suddenly come to a halt, he said, putting his research in danger. But, as federal support dries up, some states are charging on with their own funding opportunities to develop farm field solar projects. For instance, Colorado’s Agrivoltaics Research and Demonstration Grant offers money for demonstrations of agrivoltaics, research projects, and outreach campaigns.

There are other challenges as well. Caley, for instance, said farming around solar panels is akin to working in an “obstacle course.” She and her team, who mostly work manually, have found ways to work around them by being aware of their surroundings so that they don’t accidentally collide with the panels or strike them with their tools. This job is also made easier since Kominek invested between $80,000 and $100,000 to elevate his farm’s panels, which better allows animals, taller crops and farming equipment to operate beneath.

Still, a 2025 University of Arizona study that interviewed farmers and government officials in Pinal County, Arizona, found that a number of them questioned agrivoltaics’ compatibility with large-scale agriculture.

“I think it’s a great idea, but the only thing … it wouldn’t be cost-efficient … everything now with labor and cost of everything, fuel, tractors, it almost has to be super big … to do as much with as least amount of people as possible,” one farmer stated.

Many farmers are also leery of solar, worrying that agrivoltaics could take working farmland out of use, affect their current operations or deteriorate soils.

Those fears have been amplified by larger utility-scale initiatives, like Ohio’s planned Oak Run Solar Project, an 800 megawatt project that will include 300 megawatts of battery storage, 4,000 acres of crops and 1,000 grazing sheep in what will be the country’s largest agrivoltaics endeavor to date. Opponents of the project worry about its visual impacts and the potential loss of farmland.

An American Farmland Trust survey found that Colorado farmers would prefer that utility-scale solar projects be sited on less productive or underutilized farmland rather than on highly productive or actively farmed land. They also expressed concern for the potential negative impact that solar projects could have on farm productivity and the health of the land, including soil quality.

Some farmers also worry that the solar panels could leach metals into the ground, contaminating their crops, Barron-Gafford said. But while agrivoltaic systems are put together in a way that makes that highly unlikely, there’s no reason not to add soil sampling studies into the work they’re doing to reassure farmers, he added.

And agrivoltaics advocates say that the practice could actually improve soil health by reducing erosion, increasing the amount of organic matter and enhancing soil biology with cooler, moister conditions.

“I wish more people spent time listening to the folks on the ground and the folks experiencing these transitions,” Barron-Gafford added. “Because you understand more that way in terms of what their motivations or concerns actually are.”

“We don’t have to choose”

While Caley understands farmers’ concerns, she sees agrivoltaics as a way for them to keep agricultural land in production while also benefiting from solar electricity.

“The tension in a lot of communities seems to be that people don’t want to see agricultural land taken out of production in order to bring a solar farm in,” she said. “The idea here is that we don’t have to choose. We can have both.”

Kominek encourages people to envision what our landscapes and climate will look like in the next 20 to 30 years, adding that in his part of Colorado, it only stands to get hotter and drier, making agrivoltaics a smart solution for farming and clean energy production.

“Communities around the world need to figure out what changes they need to make now to help people adapt to what our climates and landscapes will be in the future,” he said. “Agrivoltaics is a climate adaptation tool that will benefit any community where such systems are built as the decades pass.”

Photo of Inside Climate News

In the Southwest, solar panels can help both photovoltaics and crops Read More »

nearly-everyone-opposes-trump’s-plan-to-kill-space-traffic-control-program

Nearly everyone opposes Trump’s plan to kill space traffic control program

The trade organizations count the largest Western commercial satellite operators among their members: SpaceX, Amazon, Eutelsat OneWeb, Planet Labs, Iridium, SES, Intelsat, and Spire. These are the companies with the most at stake in the debate over the future of space traffic coordination. Industry sources told Ars that some companies are concerned a catastrophic collision in low-Earth orbit might trigger a wave of burdensome regulations, an outcome they would like to avoid.

“Without funding for space traffic coordination, US commercial and government satellite operators would face greater risksputting critical missions in harm’s way, raising the cost of doing business, and potentially driving US industry to relocate overseas,” the industry groups warned.

Members of the 18th Space Defense Combat Squadron observe orbital data at Vandenberg Space Force Base, California, on October 4, 2024. Credit: US Space Force/David Dozoretz

The military currently performs the spaceflight safety mission, providing up to a million collision warnings per day to give satellite operators a heads-up that their spacecraft will encounter another object as they speed around the Earth at nearly 5 miles per second. A collision at those velocities would endanger numerous other satellites, including the International Space Station. This happened in 2009 with the accidental collision of a functional commercial communications satellite and a defunct Russian spacecraft, adding more than 2,000 pieces of debris to busy orbital traffic lanes.

Ideally, the Space Force issues its warnings in time for a satellite operator to maneuver their spacecraft out of the path of a potential collision. Satellite operators might also have more precise information on the location of their spacecraft and determine that they don’t need to perform any collision avoidance maneuver.

The military’s Space Surveillance Network (SSN) tracks more than 47,000 objects in orbit. Most of these objects are orbital debris, but there’s a growing number of active spacecraft as many operators—mainly SpaceX, Amazon, the Space Force, and Chinadeploy megaconstellations with hundreds to thousands of satellites.

The Satellite Industry Association reports that nearly 2,700 satellites were launched into Earth orbit last year, bringing the total number of active satellites to 11,539, a threefold increase over the number of operating spacecraft in 2020.

Under strain

Space Force officials are eager to exit the business of warning third-party satellite operators, including rivals such as Russia and China, of possible collisions in orbit. The military would prefer to focus on managing ever-growing threats from satellites, an intensive effort that requires continual monitoring as other nations’ increasingly sophisticated spacecraft maneuver from one orbit to another.

Nearly everyone opposes Trump’s plan to kill space traffic control program Read More »

cops’-favorite-ai-tool-automatically-deletes-evidence-of-when-ai-was-used

Cops’ favorite AI tool automatically deletes evidence of when AI was used


AI police tool is designed to avoid accountability, watchdog says.

On Thursday, a digital rights group, the Electronic Frontier Foundation, published an expansive investigation into AI-generated police reports that the group alleged are, by design, nearly impossible to audit and could make it easier for cops to lie under oath.

Axon’s Draft One debuted last summer at a police department in Colorado, instantly raising questions about the feared negative impacts of AI-written police reports on the criminal justice system. The tool relies on a ChatGPT variant to generate police reports based on body camera audio, which cops are then supposed to edit to correct any mistakes, assess the AI outputs for biases, or add key context.

But the EFF found that the tech “seems designed to stymie any attempts at auditing, transparency, and accountability.” Cops don’t have to disclose when AI is used in every department, and Draft One does not save drafts or retain a record showing which parts of reports are AI-generated. Departments also don’t retain different versions of drafts, making it difficult to assess how one version of an AI report might compare to another to help the public determine if the technology is “junk,” the EFF said. That raises the question, the EFF suggested, “Why wouldn’t an agency want to maintain a record that can establish the technology’s accuracy?”

It’s currently hard to know if cops are editing the reports or “reflexively rubber-stamping the drafts to move on as quickly as possible,” the EFF said. That’s particularly troubling, the EFF noted, since Axon disclosed to at least one police department that “there has already been an occasion when engineers discovered a bug that allowed officers on at least three occasions to circumvent the ‘guardrails’ that supposedly deter officers from submitting AI-generated reports without reading them first.”

The AI tool could also possibly be “overstepping in its interpretation of the audio,” possibly misinterpreting slang or adding context that never happened.

A “major concern,” the EFF said, is that the AI reports can give cops a “smokescreen,” perhaps even allowing them to dodge consequences for lying on the stand by blaming the AI tool for any “biased language, inaccuracies, misinterpretations, or lies” in their reports.

“There’s no record showing whether the culprit was the officer or the AI,” the EFF said. “This makes it extremely difficult if not impossible to assess how the system affects justice outcomes over time.”

According to the EFF, Draft One “seems deliberately designed to avoid audits that could provide any accountability to the public.” In one video from a roundtable discussion the EFF reviewed, an Axon senior principal product manager for generative AI touted Draft One’s disappearing drafts as a feature, explaining, “we don’t store the original draft and that’s by design and that’s really because the last thing we want to do is create more disclosure headaches for our customers and our attorney’s offices.”

The EFF interpreted this to mean that “the last thing” that Axon wants “is for cops to have to provide that data to anyone (say, a judge, defense attorney or civil liberties non-profit).”

“To serve and protect the public interest, the AI output must be continually and aggressively evaluated whenever and wherever it’s used,” the EFF said. “But Axon has intentionally made this difficult.”

The EFF is calling for a nationwide effort to monitor AI-generated police reports, which are expected to be increasingly deployed in many cities over the next few years, and published a guide to help journalists and others submit records requests to monitor police use in their area. But “unfortunately, obtaining these records isn’t easy,” the EFF’s investigation confirmed. “In many cases, it’s straight-up impossible.”

An Axon spokesperson provided a statement to Ars:

Draft One helps officers draft an initial report narrative strictly from the audio transcript of the body-worn camera recording and includes a range of safeguards, including mandatory human decision-making at crucial points and transparency about its use. Just as with narrative reports not generated by Draft One, officers remain fully responsible for the content. Every report must be edited, reviewed, and approved by a human officer, ensuring both accuracy and accountability. Draft One was designed to mirror the existing police narrative process—where, as has long been standard, only the final, approved report is saved and discoverable, not the interim edits, additions, or deletions made during officer or supervisor review.

Since day one, whenever Draft One is used to generate an initial narrative, its use is stored in Axon Evidence’s unalterable digital audit trail, which can be retrieved by agencies on any report. By default, each Draft One report also includes a customizable disclaimer, which can appear at the beginning or end of the report in accordance with agency policy. We recently added the ability for agencies to export Draft One usage reports—showing how many drafts have been generated and submitted per user—and to run reports on which specific evidence items were used with Draft One, further supporting transparency and oversight. Axon is committed to continuous collaboration with police agencies, prosecutors, defense attorneys, community advocates, and other stakeholders to gather input and guide the responsible evolution of Draft One and AI technologies in the justice system, including changes as laws evolve.

“Police should not be using AI”

Expecting Axon’s tool would likely spread fast—marketed as a time-saving add-on service to police departments that already rely on Axon for tasers and body cameras—EFF’s senior policy analyst Matthew Guariglia told Ars that the EFF quickly formed a plan to track adoption of the new technology.

Over the spring, the EFF sent public records requests to dozens of police departments believed to be using Draft One. To craft the requests, they also reviewed Axon user manuals and other materials.

In a press release, the EFF confirmed that the investigation “found the product offers meager oversight features,” including a practically useless “audit log” function that seems contradictory to police norms surrounding data retention.

Perhaps most glaringly, Axon’s tool doesn’t allow departments to “export a list of all police officers who have used Draft One,” the EFF noted, or even “export a list of all reports created by Draft One, unless the department has customized its process.” Instead, Axon only allows exports of basic logs showing actions taken on a particular report or an individual user’s basic activity in the system, like logins and uploads. That makes it “near impossible to do even the most basic statistical analysis: how many officers are using the technology and how often,” the EFF said.

Any effort to crunch the numbers would be time-intensive, the EFF found. In some departments, it’s possible to look up individual cops’ records to determine when they used Draft One, but that “could mean combing through dozens, hundreds, or in some cases, thousands of individual user logs.” And it would take a similarly “massive amount of time” to sort through reports one by one, considering “the sheer number of reports generated” by any given agency, the EFF noted.

In some jurisdictions, cops are required to disclose when AI is used to generate reports. And some departments require it, the EFF found, which made the documents more easily searchable and in turn made some police departments more likely to respond to public records requests without charging excessive fees or requiring substantial delays. But at least one department in Indiana told the EFF, “We do not have the ability to create a list of reports created through Draft One. They are not searchable.”

While not every cop can search their Draft One reports, Axon can, the EFF reported, suggesting that the company can track how much police use the tool better than police themselves can.

The EFF hopes its reporting will curtail the growing reliance on shady AI-generated police reports, which Guariglia told Ars risk becoming even more common in US policing without intervention.

In California, where some cops have long been using Draft One, a bill has been introduced that would require disclosures clarifying which parts of police reports are AI-generated. That law, if passed, would also “require the first draft created to be retained for as long as the final report is retained,” which Guariglia told Ars would make Draft One automatically unlawful as currently designed. Utah is weighing a similar but less robust initiative, the EFF noted.

Guariglia told Ars that the EFF has talked to public defenders who worry how the proliferation of AI-generated police reports is “going to affect cross-examination” by potentially giving cops an easy scapegoat when accused of lying on the stand.

To avoid the issue entirely, at least one district attorney’s office in King County, Washington, has banned AI police reports, citing “legitimate concerns about some of the products on the market now.” Guariglia told Ars that one of the district attorney’s top concerns was that using the AI tool could “jeopardize cases.” The EFF is now urging “other prosecutors to follow suit and demand that police in their jurisdiction not unleash this new, unaccountable, and intentionally opaque AI product.”

“Police should not be using AI to write police reports,” Guariglia said. “There are just too many questions left unanswered about how AI would translate the audio of situations, whether police will actually edit those drafts, and whether the public will ever be able to tell what was written by a person and what was written by a computer. This is before we even get to the question of how these reports might lead to problems in an already unfair and untransparent criminal justice system.”

This story was updated to include a statement from Axon. 

Photo of Ashley Belanger

Ashley is a senior policy reporter for Ars Technica, dedicated to tracking social impacts of emerging policies and new technologies. She is a Chicago-based journalist with 20 years of experience.

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Mighty mitochondria: Cell powerhouses harnessed for healing


rescuing suboptimal organs

Researchers hope a new technique can treat a variety of damaged organs.

James McCully was in the lab extracting tiny structures called mitochondria from cells when researchers on his team rushed in. They’d been operating on a pig heart and couldn’t get it pumping normally again.

McCully studies heart damage prevention at Boston Children’s Hospital and Harvard Medical School and was keenly interested in mitochondria. These power-producing organelles are particularly important for organs like the heart that have high energy needs. McCully had been wondering whether transplanting healthy mitochondria into injured hearts might help restore their function.

The pig’s heart was graying rapidly, so McCully decided to try it. He loaded a syringe with the extracted mitochondria and injected them directly into the heart. Before his eyes, it began beating normally, returning to its rosy hue.

Since that day almost 20 years ago, McCully and other researchers have replicated that success in pigs and other animals. Human transplantations followed, in babies who suffered complications from heart surgery—sparking a new field of research using mitochondria transplantation to treat damaged organs and disease. In the last five years, a widening array of scientists have begun exploring mitochondria transplantation for heart damage after cardiac arrest, brain damage following stroke, and damage to organs destined for transplantation.

This graphic depicts the basic steps and results of mitochondrial transplantation. Scientists think that donor mitochondria fuse with the recipient cells’ mitochondrial networks. Then they work to shrink the size of the infarct (the area of tissue dying from lack of blood and oxygen), among other effects. Scientists have studied such transplants in kidneys, livers, muscle, brains, hearts, and lungs. Credit: Knowable Magazine

Mitochondria are best known for producing usable energy for cells. But they also send molecular signals that help to keep the body in equilibrium and manage its immune and stress responses. Some types of cells may naturally donate healthy mitochondria to other cells in need, such as brain cells after a stroke, in a process called mitochondria transfer. So the idea that clinicians could boost this process by transplanting mitochondria to reinvigorate injured tissue made sense to some scientists.

From studies in rabbits and rat heart cells, McCully’s group has reported that the plasma membranes of cells engulf the mitochondria and shuttle them inside, where they fuse with the cell’s internal mitochondria. There, they seem to cause molecular changes that help recover heart function: When comparing blood- and oxygen-deprived pig hearts treated with mitochondria to ones receiving placebos, McCully’s group saw differences in gene activity and proteins that indicated less cell death and less inflammation.

About 10 years ago, Sitaram Emani, a cardiac surgeon at Boston Children’s Hospital, reached out to McCully about his work with animal hearts. Emani had seen how some babies with heart defects couldn’t fully recover after heart surgery complications and wondered whether McCully’s mitochondria transplantation method could help them.

During surgery to repair heart defects, surgeons use a drug to stop the heart so they can operate. But if the heart is deprived of blood and oxygen for too long, mitochondria start to fail and cells start to die, in a condition called ischemia. When blood begins flowing again, instead of returning the heart to its normal state, it can damage and kill more cells, resulting in ischemia-reperfusion injury.

Since McCully’s eight years of studies in rabbits and pigs hadn’t revealed safety concerns with mitochondria transplantation, McCully and Emani thought it would be worth trying the procedure in babies unlikely to regain enough heart function to come off heart-lung support.

Parents of 10 patients agreed to the experimental procedure, which was approved by the institute’s review board. In a pilot that ran from 2015 to 2018, McCully extracted pencil-eraser-sized muscle samples from the incisions made for the heart surgery, used a filtration technique to isolate mitochondria and checked that they were functional. Then the team injected the organelles into the baby’s heart.

Eight of those 10 babies regained enough heart function to come off life support, compared to just four out of 14 similar cases from 2002 to 2018 that were used for historical comparison, the team reported in 2021. The treatment also shortened recovery time, which averaged two days in the mitochondrial transplant group compared with nine days in the historical control group. Two patients did not survive — in one case, the intervention came after the rest of the baby’s organs began failing, and in another, a lung issue developed four months later. The group has now performed this procedure on 17 babies.

The transplant procedure remains experimental and is not yet practical for wider clinical use, but McCully hopes that it can one day be used to treat kidney, lung, liver, and limb injuries from interrupted blood flow.

The results have inspired other clinicians whose patients suffer from similar ischemia-reperfusion injuries. One is ischemic stroke, in which clots prevent blood from reaching the brain. Doctors can dissolve or physically remove the clots, but they lack a way to protect the brain from reperfusion damage. “You see patients that lose their ability to walk or talk,” says Melanie Walker, an endovascular neurosurgeon at the University of Washington School of Medicine in Seattle. “You just want to do better and there’s just nothing out there.”

Walker came across McCully’s mitochondrial transplant studies 12 years ago and, in reading further, was especially struck by a report on mice from researchers at Massachusetts General Hospital and Harvard Medical School that showed the brain’s support and protection cells—the astrocytes—may transfer some of their mitochondria to stroke-damaged neurons to help them recover. Perhaps, she thought, mitochondria transplantation could help in human stroke cases too.

She spent years working with animal researchers to figure out how to safely deliver mitochondria to the brain. She tested the procedure’s safety in a clinical trial with just four people with ischemic stroke, using a catheter fed through an artery in the neck to manually remove the blockage causing the stroke, then pushing the catheter further along and releasing the mitochondria, which would travel up blood vessels to the brain.

The findings, published in 2024 in the Journal of Cerebral Blood Flow & Metabolism, show that the infused patients suffered no harm; the trial was not designed to test effectiveness. Walker’s group is now recruiting participants to further assess the intervention’s safety. The next step will be to determine whether the mitochondria are getting where they need to be, and functioning. “Until we can show that, I do not believe that we will be able to say that there’s a therapeutic benefit,” Walker says.

Researchers hope that organ donation might also gain from mitochondria transplants. Donor organs like kidneys suffer damage when they lack blood supply for too long, and transplant surgeons may reject kidneys with a higher risk of these injuries.

To test whether mitochondrial transplants can reinvigorate them, transplant surgeon-scientist Giuseppe Orlando of Wake Forest University School of Medicine in Winston-Salem and his colleagues injected mitochondria into four pig kidneys and a control substance into three pig kidneys. In 2023 in the Annals of Surgery, they reported fewer dying cells in the mitochondria-treated kidneys and far less damage. Molecular analyses also showed a boost in energy production.

It’s still early days, Orlando says, but he’s confident that mitochondria transplantation could become a valuable tool in rescuing suboptimal organs for donation.

The studies have garnered both excitement and skepticism. “It’s certainly a very interesting area,” says Koning Shen, a postdoctoral mitochondrial biologist at the University of California, Berkeley, and coauthor of an overview of the signaling roles of mitochondria in the 2022 Annual Review of Cell and Developmental Biology. She adds that scaling up extraction of mitochondria and learning how to store and preserve the isolated organelles are major technical hurdles to making such treatments a larger reality. “That would be amazing if people are getting to that stage,” she says.

“I think there are a lot of thoughtful people looking at this carefully, but I think the big question is, what’s the mechanism?” says Navdeep Chandel, a mitochondria researcher at Northwestern University in Chicago. He doubts that donor mitochondria fix or replace dysfunctional native organelles, but says it’s possible that mitochondria donation triggers stress and immune signals that indirectly benefit damaged tissue.

Whatever the mechanism, some animal studies do suggest that the mitochondria must be functional to impart their benefits. Lance Becker, chair of emergency medicine at Northwell Health in New York who studies the role of mitochondria in cardiac arrest, conducted a study comparing fresh mitochondria, mitochondria that had been frozen then thawed, and a placebo to treat rats following cardiac arrest. The 11 rats receiving fresh, functioning mitochondria had better brain function and a higher rate of survival three days later than the 11 rats receiving a placebo; the non-functional frozen-thawed mitochondria did not impart these benefits.

It will take more research into the mechanisms of mitochondrial therapy, improved mitochondria delivery techniques, larger trials and a body of reported successes before mitochondrial transplants can be FDA-approved and broadly used to treat ischemia-reperfusion injuries, researchers say. The ultimate goal would be to create a universal supply of stored mitochondria — a mitochondria bank, of sorts — that can be tapped for transplantation by a wide variety of health care providers.

“We’re so much at the beginning—we don’t know how it works,” says Becker. “But we know it’s doing something that is mighty darn interesting.”

This article originally appeared in Knowable Magazine, a nonprofit publication dedicated to making scientific knowledge accessible to all. Sign up for Knowable Magazine’s newsletter.

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Knowable Magazine explores the real-world significance of scholarly work through a journalistic lens.

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Ars staffers share some of their favorite unexpected 3D prints


Once you solve one problem with a 3D printer, you’ll go looking for others.

Coffee bean dosing cups and espresso tamper handle Credit: Aurich Lawson

Coffee bean dosing cups and espresso tamper handle Credit: Aurich Lawson

Part of the fun of 3D printing is discovering just how many possibilities there are for different things to print. Obviously, they’re fun for printing toys or decorations that you couldn’t or wouldn’t buy yourself, but they’re also powerful problem-solving tools. Once you’ve solved a few problems with 3D printed parts, you start looking around for other minor inconveniences or quality-of-life upgrades that you could solve—and the breadth and depth of the 3D printing community means that you can almost always find someone else who has already thought up and posted a solution for you.

As a coda to our series about breaking into 3D printing for the first time, the 3D printer-pilled among the Ars staff is sharing a few of their favorite unexpected prints, from fun all-purpose gifts to containers and organizers to parts that will help you with your other, non-3D-printing-related hobbies. This is just a fraction of what’s out there, but if you’re still on the fence, maybe some of these will open your mind to the possibilities.

Coffee gear

Every morning, I make either a pour-over coffee or some form of espresso. For measuring my beans, I printed two dosing cups. The black one is matte black PLA with a fuzzy surface texture (an option in most slicers that adds random noise to the outside wall paths), and the white one is ABS that I sanded to a smooth surface. For sanding, I prefer ABS, as it’s easier to get something that has no real signs of layer lines. To tamp my espresso grounds, I printed a handle in black ABS and sanded it smooth to feel good in the hand. The rounded knob helps me get pressure more comfortably than the raw metal of the original tamper, and the radial fins fit perfectly into the dosing cup, keeping the tamp straight up and down so I don’t end up with a sloped surface.

These were all files I downloaded from MakerWorld, and I didn’t really do anything to them except minor scaling or adding the fuzzy skin.

—Aurich Lawson, Creative Director

Even more organizational tools

3D printers are good for imposing order on chaos. Credit: Andrew Cunningham

My very first 3D prints were new organizational tools to try and impose some order on the chaos of my home and office, and my favorite prints still tend to be of that genre.

Cleaning out and fully organizing my desk with 3D-printed baskets and containers is still on my long to-do list, but I did manage to tame the loose pile of USB sticks and memory cards in my desk with one of the many available organizer designs. This Gridfinity-compatible design is the one I went for, but there are truly dozens of examples on MakerWorld alone; I like this one because it can hold a lot of USB-A drives and because each individual slot is versatile enough to hold USB drives or SD or microSD cards. But there are examples with more USB-C ports and some with different dimensions and spacing, so you can find the one that works best for the space you’re trying to fit it into.

Who doesn’t need to be able to store multiple pairs of Bluey sunglasses? Credit: Andrew Cunningham

Having a third sunglasses-wearer in the house (and one with multiple Bluey sunglasses) also made it necessary to find some kind of way to easily put them away and keep them from floating around the living room or car and getting lost forever. I really like the versatile and modular SnapStack Modular Glasses Holder design, which gives you designs for a base and a top, and then you print as many sunglasses holders as you need; if you need to expand later on, just print another one or pop the top off and add to the one you’ve already made.

We had enough things to store that I went right for this three-sided version of the stand, which I printed to be able to hold nine pairs (and which is large enough that you can rest a sunglasses case or something else on the top). I stuck a few small adhesive furniture pads to the bottom to prevent damage to the table. But if you have fewer, you can print free-standing or wall-mounted versions, too.

Andrew Cunningham, Senior Technology Reporter

Aerogarden baskets and Mario mushrooms

Screenshot of Bambu Studio showing aerogarden baskets being set up for printing

So, so many Aerogarden baskets.

Credit: Lee Hutchinson

So, so many Aerogarden baskets. Credit: Lee Hutchinson

I have two fun 3D printer things to share—one is a life/money hack kind of thing, and the other is just neat.

On the life/money hack thing, my wife is a big Aerogarden kind of person—we have probably two dozen or more of the hydroponic plant doodads all over the house in various sizes, from tiny to “one wall of the kitchen.” She raises small plants in the Aerogarden(s) and then transfers them outside to the real garden; doing this means she was buying lots of special little Aerogarden baskets for the baby plants to take root in.

That sounded like a job for a 3d printer! And sure enough, Thingiverse came to the rescue! In the two years we’ve had our Bambu Lab X1 Carbon, I’ve printed probably a thousand or more of these things, in 27-lot batches because that’s how many will fit on a single build plate.

Photograph of Lee's 3d printer and a bunch of printed 1-up mushrooms all over it.

I got mushrooms and companion cubes for days!

Credit: Lee Hutchinson

I got mushrooms and companion cubes for days! Credit: Lee Hutchinson

The other thing that has brought delight, honestly, is this little screw-top Mario 1-Up mushroom (at least, I think that’s the same one as the one I’ve been printing—it’s hard to tell, but it looks the same). It’s a little silly, but these things are not only really fun to fidget with—the top comes off and you can hide stuff in them!—but they also make fantastic little gifts for folks, especially anyone with kids and/or Gen-X sensibilities. Everyone needs more screw-top 1-Up mushrooms in their lives, and they work great in tons of different colors!

Lee Hutchinson, Senior Technology Editor

Festool track hangers

I have three different tracks for my Festool tracksaw that I like to hang on my garage wall. It keeps them from getting dinged up, and they are easily accessible when I’m ready to cut with them. For these, I modeled my own designs in Fusion 360, with the main body printed in matte black PLA and the knob printed in a green HTPLA called Lootsef by Protopasta. That’s “Festool” spelled backward, of course, and it’s designed to pretty much perfectly match Festool’s signature green.

I used nuts embedded in the main body and bolts through the knobs to allow them to be turned to lock or release the track in place. I modeled the Festool logo into the top of the knob and used the ironing option in Bambu Studio to use the printer’s hotend to smooth the top surface around the logo.

The protective end caps were printed in the same HTPLA from a file someone uploaded to Printables.

—Aurich Lawson, Creative Director

Gridfinity all the things!

Gridfinity is a modular, grid-based storage and organization system that’s optimized for 3D printing and rapid customization. Created by Zack Freedman, Gridfinity uses a standardized 42×42 mm base grid upon which you can place highly adaptable tool trays, organizers, and workspace layouts.

The upshot is that you can print anything from a little 1x1x1 cube (42 mm3) to a massive storage bin the size of your print bed. If your desk, kitchen, or bathroom drawers scream out for organization, this is a good solution because you can print exactly what you want.

The Gridfinity Generator has you covered when it comes to printing a custom base grid. This parametric gridfinity tool is a great place to start printing bins, particularly if you’re in a situation where you can shave a few grams of filament off your design (desk bins, for instance, can typically use very thin walls).

—Ken Fisher, Editor-In-Chief

Green PETG for your green thumb

New hobby meets ancient practice when you combine 3D printing and agriculture! Credit: Andrew Cunningham

After several years of dashed hopes and false starts, I was finally able to get a single raised garden bed going in our backyard this year (among other things, a raised bed is a bit easier to protect from the wildlife in our backyard and simpler to use with the Square Foot Gardening system). The 3D printer contributed a few odds and ends, including parts that helped add strength to the enclosure I built around it and tools that helped me keep the cage’s corners (mostly) square.

But now that some of the plants are actually going, the 3D printer’s main contribution to the cause has been 3D-printed cages, which I’ve been using to get my vining plants to grow upward instead of outward (necessary for the close quarters of square-foot gardening) and to keep things from flopping over onto the ground.

As with the desk organizers, there are many options for plant cages and trellises, depending on the size of your plants, what you’re trying to grow, and your aesthetic and functional preferences. I’m giving these circular stackable ones a try since I like that they can easily be printed continuously based on how high your plants want to get, though for big ol’ tomato plants, you’ll still want a stake in the ground to help bear the weight once the plants are more than a few feet high.

If you do this—and especially if you’re using an open-bed printer like my Bambu Labs A1, which doesn’t handle filament like the UV-resistant ASA well—you’ll want to make sure to print using PETG plastic instead of the typical PLA. PETG can be fussier than PLA (it’s more prone to stringing, especially if you’re not drying your filament rolls), but it’s also less prone to warping after extended sunlight exposure, it’s modestly UV-resistant, and it has a bit more flexibility and resiliency than the more brittle PLA plastic.

Andrew Cunningham, Senior Technology Reporter

Tool drawer organization

I also liked the idea of Gridfinity, but I found the 42 mm size a little awkward—and yes, it’s a Hitchhiker’s Guide reference, not a spec built around the size of human fingers. I modeled my own system in Fusion 360 based loosely on the idea, but with a 50 mm grid that I laser-cut out of cardboard to avoid having to print it. The containers are printed in matte black and white PLA, with a color switch using my X1C’s AMS multi-spool system to get the white tops. There’s no function to the white; I just thought it looked nice with the labels.

Custom holders for Wera screwdrivers and hex wrenches. Credit: Aurich Lawson

I modeled custom holders for another drawer to hold my screwdrivers and hex wrenches. Having the perfect shape to fit the screwdrivers is slightly overkill, but it’s super satisfying to drop them into place and watch them settle exactly into place. There’s a metric and imperial holder for the hex wrenches, each removable, so I can take them with me to find the right fit when I’m working on something. All the holders lock into the same 50 mm grid as the bins.

—Aurich Lawson, Creative Director

My main squeeze

Sometimes you stumble across things you didn’t know you needed. For me, that’s this Toothpaste Squeezer. You can print one or a dozen of them in no time. They’re simple yet effective.

Will it change your life? No. But it will give you that satisfying feeling of dealing with a beautifully primed tube of toothpaste every time. Even my in-laws use these now (or so they say). If you want something a little more hefty with a built-in ratchet, check this one out.

—Ken Fisher, Editor-In-Chief

Corral your remote controls

Even if you have a decent universal remote, chances are good that you still need your other remotes nearby. This remote control stand is easy to print, looks great, and offers a few customization choices. It also prints in multicolor without an AMS, so you can match your decor quite easily. And I’m pleased to note that it holds the fat TiVo remote with no problems.

—Ken Fisher, Editor-In-Chief

The Armorer helmet

In addition to practical prints, I like to make display props, especially Star Wars helmets. I don’t wear them for cosplay or anything; I just like having them around to look at and enjoy. I have several shelves full now, and I like to use a combination of ABS and resin to print them for the various advantages in post-processing and detail. This Armorer helmet from The Mandalorian is the first helmet I did, before I had my Bambu X1C, and it was printed in PLA on my Prusa. I later printed the horns in resin, but they could have been done in PLA and sanded smooth easily enough.

I’m including this helmet instead of any of my others because I wanted to show that you can make something like this with any bed slinger printer. You don’t need an enclosure or a large-format printer—this was printed in sections and glued together—and you don’t need fancy or toxic materials like ABS and resin.

There was a lot of sanding, filler primer, bondo, and several different passes of automotive paints, plus a two-part catalyst clear coat to finish it off. But you could get a lot of this look with rattle cans, without the need for a compressor and spray gun.

—Aurich Lawson, Creative Director

Photo of Andrew Cunningham

Andrew is a Senior Technology Reporter at Ars Technica, with a focus on consumer tech including computer hardware and in-depth reviews of operating systems like Windows and macOS. Andrew lives in Philadelphia and co-hosts a weekly book podcast called Overdue.

Ars staffers share some of their favorite unexpected 3D prints Read More »

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Mike Lindell lost defamation case, and his lawyers were fined for AI hallucinations

Lawyers representing MyPillow and its CEO Mike Lindell were fined $6,000 after using artificial intelligence in a brief that was riddled with misquotes and citations to fictional cases.

Attorney Christopher Kachouroff and the law firm of McSweeney Cynkar & Kachouroff were fined $3,000, jointly and severally. Attorney Jennifer DeMaster was separately ordered to pay $3,000. This “is the least severe sanction adequate to deter and punish defense counsel in this instance,” US District Judge Nina Wang wrote in an order issued yesterday in the District of Colorado.

Kachouroff and DeMaster were defending Lindell against a defamation lawsuit filed by former Dominion Voting Systems executive Eric Coomer, whose complaint said Lindell and his companies “have been among the most prolific vectors of baseless conspiracy theories claiming election fraud in the 2020 election.”

The sanctioning of the lawyers came several weeks after a jury trial in which Coomer was awarded over $2.3 million in damages. A jury found that Lindell defamed Coomer and ordered him to pay $440,500. The jury also found that Lindell’s media company, Frankspeech, defamed Coomer and ordered it to pay damages of $1,865,500. The jury did not find that MyPillow defamed Coomer.

The February 25 brief that got Lindell’s lawyers in trouble was an opposition to Coomer’s motion asking the court to exclude certain evidence. Coomer’s motion was partially granted before the trial began.

“Correct” version still had wrong citations

As we wrote in an April article, Kachouroff and DeMaster said they accidentally filed a “prior draft” instead of the correct version. But Wang’s order yesterday said that even the so-called “correct” version “still has substantive errors,” such as inaccurate descriptions of previous cases. The original version has nearly 30 defective citations.

Mike Lindell lost defamation case, and his lawyers were fined for AI hallucinations Read More »

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As California faces court battles, states scramble to save their climate goals


With or without authority to regulate heightened emissions, states plan to meet climate goals.

Traffic jam forms on Interstate 5 north of Los Angeles. Credit: Hans Gutknecht/MediaNews Group/Los Angeles Daily News

This article originally appeared on Inside Climate News, a nonprofit, non-partisan news organization that covers climate, energy, and the environment. Sign up for their newsletter here.

When President Donald Trump signed legislation to revoke California’s authority to enforce stricter tailpipe emissions standards and to ban sales of gas-powered cars by 2035, the effects rippled far beyond the Golden State.

Seventeen states relied on California’s Clean Air Act waivers to adopt stronger vehicle pollution rules on their own, including New York, New Jersey, Oregon, Massachusetts, and Washington.

California, joined by several states, immediately sought a court injunction, calling the revocation illegal on the basis that the waivers are not subject to congressional review and that it violated decades of legal precedent and procedure. These same states recently launched an Affordable Clean Cars Coalition to coordinate legal action and policy to defend their rights to transition to cleaner vehicles.

As the legal battle plays out, states that have relied on the waivers are leaning into expanding multimillion-dollar ways to keep their EV transitions on track. Among their efforts: amping up rebates, tightening rules on the carbon intensity of fuels, and cracking down on pollution where trucks congregate.

“Climate change is still around, whether we have the waiver or not. So we have to figure out ways to make sure that we’re doing what we can to address the problem at hand,” said Michelle Miano, who heads the New Mexico environment protection division of the Environment Department.

According to data from the California Air Resources Board, the states that have passed tougher pollution rules account for about 40 percent of new light-duty vehicle registrations and 25 percent of new heavy-duty vehicle registrations in the United States, where the transportation sector is the highest source of greenhouse gas emissions as of 2022.

Among these stronger rules are the Advanced Clean Cars (ACC) I and II and Advanced Clean Trucks (ACT), which require automakers to sell a growing share of electric passenger cars and medium and heavy-duty trucks to reduce emissions from gasoline-powered counterparts.

The goal is for all new vehicles sold to be electric by 2035.

Bolstering incentives 

Without ACC and ACT, states are betting they can increase demand for EVs by reducing the costs of buying a vehicle with rebates, vouchers, and grants and boosting the number of charging stations in their states. These incentives can range from a few thousand dollars for individual EV purchases to hundreds of thousands for building charging infrastructure and fleet upgrades.

On June 18, New York announced a $53 million expansion to its voucher program for electrifying last-mile truck fleets, offering vouchers from $340,000 to $425,000 for each truck, depending on the model.

“Despite the current federal administration’s efforts to erode certainty in the ongoing transition to cleaner vehicles, New York State will continue to act to protect our air, lands, and waters,” said Amanda Lefton, commissioner of the Department of Environmental Conservation.

In Oregon, where over a third of in-state emissions are from transportation use, the government this month opened applications for $34 million in grants toward the purchase of zero-emission trucks and developing charging stations for EVs or retrofitting diesel trucks. Lawmakers are considering expanding a popular rebate program through a bill introduced in February. The program so far has given car owners almost $100 million for EV purchases. (The program has been suspended twice after running out of money. It resumed as of May 2025.)

In Massachusetts, Gov. Maura Healey promised in May to announce “dedicated additional grant funding” for electric vehicles and vowed to increase “grant funding opportunities” for charging. Advocacy groups, including the Environmental League of Massachusetts, are counting on increased funding for its MOR-EV rebate program, which provides up to $3,500 for new EV purchases. This year, the rebate program has distributed $15.7 million in total incentives, according to the program’s statistics page.

In Washington state, lawmakers earmarked $126 million—a $16 million increase from 2024—to subsidize purchases of electric truck fleets and chargers. Many states are targeting trucks because they account for a huge share in emissions relative to their number on the road.

Will Toor, executive director of the Colorado Energy Office, credited state rebates and investments in charging infrastructure for helping Colorado reach a 20 percent electric vehicle market share in the first quarter of 2025. One in five new cars sold in the state was electric. Toor also credited the state agency’s EV buyer’s education campaign launched in late 2022, which promoted available rebates and incentives for prospective EV owners.

The scope and generosity of these programs vary widely depending on each state’s climate priorities, budget capacity, and access to federal or market-based funding streams.

“Those types of incentives can be expensive,” said Terrence Gray, director of the Rhode Island Department of Environmental Management. “In Rhode Island, our budget is tight. There’s not a lot of funding available right now, so we would have to make a very strong argument that there’s a strong cost benefit to invest in these types of areas.”

With the Trump administration threatening to cut down federal funding for EV rebates through the Biden-era Inflation Reduction Act, states will have to increasingly rely on themselves to fund these programs.

“The federal government isn’t going to come save us,” said Alex Ambrose, an analyst with the nonpartisan think tank New Jersey Policy Perspective.

Some are already ahead on this. California and Washington state have devised carbon markets that charge major polluters—like oil refiners, power plants, large industrial facilities, and fuel suppliers—for each ton of carbon dioxide they release. California’s auctions bring in about $3 to $4 billion per year, which support programs such as public transit and EV rebates. Washington’s system, launched in 2023, covers around 97 major emitters and has raised over $3 billion in its first two years, funding clean transportation, air quality devices, and EV chargers.

The states of New York, New Jersey, Massachusetts, and other Northeast and Mid-Atlantic states have signed up to the Regional Greenhouse Gas Initiative, or RGGI, which is a cooperative cap-and-invest program launched in 2009 that limits emissions from the power sector and reinvests proceeds into clean energy programs like EV rebates.

Making fuels greener

While many states focus on promoting electric vehicles, others are also targeting the fuel of gas-powered cars, by adopting or developing standards that lower the carbon intensity.

These policies require fuel producers and importers to blend cleaner alternatives like biofuels, renewable diesel, or electricity into the fuel mix.

Patterned after California, Washington has a clean fuel standard in effect since 2023, targeting a 20 percent reduction in carbon intensity of transportation fuels by 2034 compared to 2017 levels.

Oregon has a similar program in place that aims to reduce carbon intensity in fuels by 37 percent by 2035.

New Mexico approved its Clean Transportation Fuel Standard in March 2024. A formal adoption hearing before the Environmental Improvement Board is scheduled to begin in September.

“We know that those (electric) vehicles aren’t for everyone and so we are very respectful of folks that decide to not purchase them,” said Miano, New Mexico’s environment protection division head.

No East Coast states have enacted a clean fuel standard, but New York state legislators may change that.

There are bills in the State Senate and Assembly that, if passed, would require fuel providers to reduce the carbon intensity of their transportation fuels by at least 20 percent by 2030. (Legislation has passed the Senate but remains at the committee level in the Assembly as of June.)

Michigan also had bills introduced in its Senate and House in 2023, but neither passed before the 2024 session ended. Similar bills have not been introduced since then.

Some of these clean fuel standards have faced criticism from environmental advocates, who argue that they allow polluters to buy their way out of reducing emissions.

But Trisha DelloIacono, policy head at advocacy group CALSTART, said the fuel standards remain one of the few politically viable tools to gradually shift the transportation sector toward cleaner fuels.

“What we need to be looking at right now is incremental changes and incremental progress in a place where we’re fighting tooth and nail to hold on to what we have,” DelloIacono said.

Where trucks congregate

There’s also a policy tool called indirect source rules, or ISR.

The rules are called “indirect” because they don’t regulate the vehicles themselves, but the facilities that attract emissions-heavy traffic, like large warehouses, ports, or rail yards. The rules hold the facilities owners or operators responsible for reducing or offsetting the pollution from their profitable traffic.

Studies show that the pollution from these trucks often ends up in nearby neighborhoods, which are disproportionately lower-income and communities of color.

California is currently the only state enforcing ISRs.

In Southern California, large warehouses must take steps to reduce the pollution caused by truck visits, either by switching to electric vehicles, installing chargers, or paying into a clean air fund. It’s the first rule of its kind in the country and it survived a court challenge in 2023, paving the way for other states to consider similar action.

New York is one of them. Its lawmakers introduced a bill in January that could require warehouses with over 50,000 square feet to reduce emissions from trucks by meeting certain benchmarks, such as hosting electric deliveries or offering bike loading zones. New York City has its own version of the rule under deliberation in the Council. As of June 2025, the bill remains stalled in the environmental committee. City Council has until December to act before the bill expires.

In New Jersey, where warehouse growth has boomed, legislators in 2024 proposed a bill that would require “high-traffic facilities” to apply for air pollution permits and provide plans to reduce diesel truck pollution.

“This is really being pushed by the community groups and environmental justice communities, especially in North Jersey. But also, warehouses are starting to pop up even in very rural parts of South Jersey. So this is very quickly becoming a statewide issue in New Jersey,” said Ambrose of the New Jersey Policy Perspective.

In Colorado, its regional air quality council in April announced plans to ask its air quality control commission to use ISR for areas with the worst air quality.

Industry groups, especially in the logistics sector, are pushing back. The industry group Supply Chain Federation told The Wall Street Journal that the southern California ISR was a “backdoor approach [that] does little to cut emissions and instead raises costs, disrupts supply chains.”

Still, experts say this may be one of the few options left for states to cut emissions from traffic-heavy facilities. Because these rules don’t directly regulate the car companies or trucks themselves, they don’t need federal approval.

“We definitely have to be nimble and fluid and also understand the kind of landscape in the state,” DelloIacono said.

Photo of Inside Climate News

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on-alpha-school

On Alpha School

The epic 18k word writeup on Austin’s flagship Alpha School is excellent. It is long, but given the blog you’re reading now, if you have interest in such topics I’d strongly consider reading the whole thing.

One must always take such claims and reports with copious salt. But in terms of the core claims about what is happening and why it is happening, I find this mostly credible. I don’t know how far it can scale but I suspect quite far. None of this involves anything surprising, and none of it even involves much use of generative AI.

Rui Ma here gives a shorter summary and offers takeaways compatible with mine.

  1. What Is It?

  2. What It Isn’t.

  3. Intrinsic Versus Extrinsic Motivation.

  4. High Versus Low Structure Learners.

  5. I’ve Got a Theory.

  6. Is This Really The True Objection?

This is essentially goal factoring that combines several known effective techniques.

In particular:

  1. Spaced repetition and mastery, require full learning without letting things drop.

  2. Immediate problem sets with immediate feedback and explanation.

  3. Tracking clicks and eye focus and providing feedback on that too.

  4. Gamified reward systems for atomic learning actions, paid prizes.

  5. 1-on-1 attention upon request, 5-to-1 overall student-teacher ratio.

  6. Short bursts with breaks.

  7. Flexibility on what kids do when within academics and freedom to push ahead.

  8. Not wasting time on things you don’t care about, getting rid of bad methods.

  9. Within that framework, find reasonable educational software, use it.

  10. Afternoon projects and tasks always involve concrete and measurable output. ‘Check charts’ give bigger missions to do that gate ability to advance grade levels, to get kids used to longer harder things and developing agency.

You get all the academics in during the morning, and advance much faster than normal. Then you have the afternoon left to do whatever you want, including filling in any ‘soft’ skills you decide were important. You don’t try to do it all in some sort of all-purpose Swiss-army-knife lecture classroom and pretend it’s not pre-Guttenberg.

Most time is spent learning on a computer, watching videos and doing problems, but if you ever need help you can ask for a teacher, and if you ever struggle they bring one in for you. There’s still a lot of human attention going into all of this.

Does it work for academics? This ia a very skin-in-the-game way to assert that it does, and reports all say that it does, regardless of exactly how well:

The school’s “100% Money Back guarantee” is that every student who attends will be in the top 1% academically and win at least one national academic competition (for kids who start in kindergarten they guarantee 1350+ SAT and 5s on APs by 8th grade).

You can and should worry that they are effectively teaching to various tests or focusing narrowly on subsets of academics, but regular school does that a lot too, the entire afternoon is free for other things, and also there is a fixed amount that you can present good results via test optimization. You can’t get years worth of extra results. MAP Growth Speed findings work the same way, at some point it can’t be faked.

Spaced repetition works wonders as does ensuring mastery, and being able to customize for what each individual child actually needs right now. A giant portion of time spent in school is obviously wasted by failure to reinforce or by teaching things that aren’t relevant or by simple boredom and so on. Immediate feedback is huge.

Selection effects also are important here, on various levels, but I think these results are bigger than that can account for, by a lot.

Is all of this optimal? Not even close, but it doesn’t have to be. The baseline it is up against is downright pathetic.

This include most expensive private schools, like the horror story example that is the first section of this review. They work hard for the right to pay tens of thousands a year to get a peer group of others that did the same, and in exchange get a school entirely uninterested in teaching their student anything that can be verified or that the patents value. When they challenge the school, the school threatens to kick them out in return.

That’s the standard you’re up against.

So there is no reason that the core of this wouldn’t work, or wouldn’t scale, once a given student gets to the point they can participate. Performance would fall off somewhat as you lose other advantages, like selection and buy-in and the ability to bid higher for a mostly better distribution of teachers, but all of that seems easily survivable.

The only part whose effectiveness seems non-obvious and the system might fail to scale is the incentive program, the gamified rewards, and the possibility that this would fail as motivation for a lot of or even most students. I’ll tackle that in a bit.

It would work and scale even better if you incorporate generative AI. Certainly most of the time that one is ‘stuck’ in these situations, generative AI can help you a lot in becoming unstuck, or letting kids follow their curiosity in various ways. You can (if we can’t find a better answer) disable or monitor AI use during assessments.

This isn’t a way to save money or hire fewer teachers, but I notice this is weird at least for the morning portion? Shouldn’t it be that, if they want that?

If a pattern of stumbles appears the system will automatically task the student to book a “coaching call” with a remote teacher (most of these teachers seem to be based in Brazil). Kids can also choose to self-book calls with the “coaches” at any time.

Today she booked it at 11: 10 and had the call at 11: 15, but she said once it took her two days to get the meeting. I asked her how often she has a call and she said less than once a day, but more than once a week.

Thus, the remote teachers can’t possibly be that large a part of the 5:1 ratio, and presumably are not expensive. This also points to a potential improvement, since an in-person tutoring session would be more effective when possible. The physically present teacher should be able to handle a lot of kids at once during academic time if they are all on their computers.

Thus the 5:1 ratio must be coming from the afternoon activities, which is cool but presumably optional. The system works without it. The actual marginal costs here for an additional student that matter should be quite low.

It also isn’t aristocratic tutoring. I am very confident that aristocratic tutoring, as in constant 1-on-1 attention from a variety of experts, is the most effective strategy available if you have the resources to do it and you combine it with other best practices like spaced repetition. This is an attempt to get a lot of the benefits of that without the associated extremely high costs. I would also expect incorporating generative AI to help move us further in this direction.

What are you giving up from the ‘traditional’ school experience?

From what I can tell you are mostly giving up ‘classes,’ meaning lectures where a group of kids sit in desks and listen to someone talk with some amount of interaction. Which, again, seems like an obvious terrible way to accomplish essentially anything? If you think that the interactions within that setting are somehow socially important or incidentally teach other skills other than how to sit still, obey and be bored for extended periods, in a way that can’t be made up for several times over with a free afternoon for other things, I notice I am confused why you would think this.

If you do think the main goal of school is to learn to sit still and be bored and quiet and obey, well, okay then, Alpha School should not be your top choice, but I am confused why you would want that in 2025.

It also is not a way to avoid screen time, since the academics are done on a device. If you think that this is intrinsically important, that is an issue. My model of ‘screen time’ is that it depends what it is for and how it works, at least once you’re into primary school, so it is not an issue.

It also isn’t a way to ensure that all children learn ‘equally’ or ‘equitably,’ to prevent kids from learning too much too fast (oh no?!) or learn someone’s preferred ideological beliefs. Again, different goals. If those are your goals, then Alpha School is not for you.

However, even if you did in theory want to ensure equal or equitable learning outcomes, as in you actively did not want kids to learn, then this is still great news. Because this lets everyone learn faster, ensuring everyone gets to the same target. Then, if some kids might learn too much, you can make them stop learning. Also, check your uniforms. I think there might be skulls on them.

They sell a home school version of Alpha School for on the order of $10k/year. It does not work as well. The post attributes this difference mostly to the lack of AlphaBucks. As in, everything about this being at a school mostly doesn’t matter, except for there being an adult to watch the kid, and for the AlphaBucks.

The secret ingredient is not crime. It is AlphaBucks, paid for good performance.

Which is, for mostly bad reasons, less popular than crime.

Alpha schools have their own in-house currency. Alpha has “Alpha bucks”; GT School has “GT bucks”. My understanding is that they work a little differently on each campus, but the overall philosophy is the same. This review will focus on the details of the GT system since it is what I know best.

If the students complete their 2-hour learning “minimums” each day they earn about 10 GT Bucks. They get additional bonuses for every lesson they complete beyond their minimums. They also get a bonus if they finish their minimums within the scheduled time (vs going home and doing them later), additional bonuses if the entire class completes their minimums during the allotted time, and weekly bonuses for hitting longer term targets.

They only get credit if they both complete their lessons AND get 80% or higher on the problem sets within the lesson. If they get 79% they still move on (with the questions they missed coming back later for review), but they don’t get the GT bucks associated with the lesson (this stops gaming where the kids rush through the lessons just to get “bucks”)

A GT buck is worth 10-cents. So if they are really pushing a kid could be earning roughly $2 per day.

Fryer paid kids to read books, GT pays kids to do lessons.

Once a kid has earned a collection of GT bucks they can spend those bucks at the GT-store. The Alpha store has a wide selection of offerings. The GT store, because it is a much smaller school, is more like a catalog.

The kids are then described as using various strategies. Some spend as they go. Others save up for big purchases, or save indefinitely.

All reports are that it worked.

We tried getting the kids to work on it for about an hour per day, but it was a fight every time. It was the same content they would be doing at GT, but without the GT structure, and it did not work.

But once the kids started at GT, those same iXL lessons became a game for them. I remember taking the kids to the park one day after school. They asked me, “Instead of playing can you set up a hotspot so we can do a few more lessons? I want to earn more GT-Bucks!”.

Was it bad that they were being bribed to do lessons? 76% of Americans would think so. But it definitely worked.

My middle daughter – who is the most driven by money – has completed more than two full grades of school in ~20-weeks (60% of the school year), and shows no signs of slowing down.

I believe the reports. My experience with my own children, and my own experience both now and as a child, and as a game designer, and everything else I have seen, lines up with this.

I’ve seen it work with screen time. I’ve seen it work with ‘reasonable requests.’ I’ve seen it work with daily login bonuses, including when the prize is nothing except a message. I’ve seen it work with essentially anything, no matter how little objective value is involved. Gamification works when you set your variables correctly. Everyone loves a prize and recorded incremental progress.

Another objection is that you need peer groups as part of motivation. Well, Alpha School still has that, you can absolutely compare what you are doing to others, talk to peers and so on. I don’t see the problem here.

The better objection is the idea that extrinsic motivation will destroy intrinsic motivation. Once you pay them to learn, the theory goes, they won’t want to learn except to get paid. That is a highly reasonable theory. There is a long literature of extrinsic motivation crowding out intrinsic. The article cites other literature saying that paying can lead to building up habits and intrinsic motivation over time, and that the program seems to work.

I want to specifically address the objection that some learners are ‘high structure,’ and therefore need the very classrooms that bore the rest of us to tears and waste large portions of our childhood, but which somehow it would still supposedly be wrong to free the ‘low structure’ learners from too early.

Alpha School very obviously provides a different but clearly very high structure. If what students need is structure, a firm hand, a particular thing to do next, and to be kept on track? Very obviously that is not going to be where this project falls apart.

The standard theory, as I understand it, is that the reason for undermining motivation is when the reward undermines locus of control, and the reward you offer is now seen as the reason for the behavior, and that implementation details matter a lot.

I notice that gamification of rewards helps retain locus of control. The kid is the one in charge of getting and allocating the rewards, so they feel in control of the process.

I also notice myself thinking about it in this way, too:

  1. Extrinsic motivation to do [X] destroys inherent intrinsic motivation to do [X].

  2. Extrinsic motivation to do [X] does not destroy motivation to do [X] to get [Y].

Or, in English:

  1. If I pay you to do something inherently fun it will become less inherently fun.

  2. If I pay you to do useful things where you see their value, you develop habits and learn they are useful. So you will keep doing it even after I stop paying you.

Why? Because the brain is not stupid, and this is not all about crowding out or locus of control, although all three things are closely related.

If I pay you to do something that you previously did because it was fun, then you are now doing it in ways and quantities that are not fun. You break the association. So the brain learns that the activity is not fun, on top of the locus of control issue, and the habit is that you do this because you have to and it isn’t fun. Your motivation dies.

If I pay you to do something because it works, then you do it because you are paid, but then you notice that it works (or even that it is fun because I set it up to be fun and then paid you to do it that way), and that this is also a good reason. You learn to do it for two reasons, and you notice that you’re doing it because of the results not only because of the payments. Then, when I take the money away, you’ll know how to do it, you’ll have the habit of doing it and it paying off, and thus you’ll want to keep doing it.

I also noticed, upon asking for research reports on the question, that what Alpha School is doing mirrors all of the ‘get the implementation details right’ results from the literature:

  1. Rewarding fundamental behaviors works better than rewarding test performance.

  2. Rewards work well for drill-style efforts, and are destructive for fun activities.

  3. Immediate rewards outperform delayed rewards, note that they give the AlphaBucks on the spot even though the cashed in reward may be delayed.

  4. Tying rewards to specific competence standards enhances intrinsic motivation.

  5. When rewards provide information rather than controlling behavior, they enhance motivation. The implementation details do this here.

  6. Competence support demands appropriate challenges, clear success criteria, and informational feedback.

  7. Autonomy-supportive delivery is crucial for any reward system. Here the child determines how to cash out the reward, and what order to do activities in.

Then on top of that we have the gamification aspects. So there are still implementation dangers, but this seems like very clearly good design.

This reinforces that we have every reason to expect the AlphaBucks system, as described, to work, even though other incentive systems sometimes backfire.

Paying has a bad rap partly for silly moralistic reasons, and largely because most of the time such systems get implemented poorly. In particular, the most common place we pay people to do things is jobs and work, and there we often implement in a way that destroys motivation, especially via paying for time or other billables. That’s bad design. AlphaBucks is good design.

It keeps becoming increasingly obvious that we can make massive Pareto improvements over classical school. This is the most glaring example. The only big disadvantage that actually matters is that it remains expensive, but that will improve over time, and for what you get it is already a fantastic deal.

Marginal costs for the active ingredients should be low, including for the homeschool package where there seem like clear paths to fix the motivational issues (as in, to introduce AlphaBucks, likely via creating virtual pods of associated students, which also helps with other things and seems like an obvious play once you scale enough for this.)

One can contrast this positive vision with the extensive defense of the current school system that was the next review in the ACX contest, where it is explained that all of you people thinking schools look like the kids sit around all day not learning don’t have the proper context to understand why it all actually makes sense. Because school, you see, isn’t designed to maximize learning, it is designed to maximize motivation, whereas ‘individualized learning has failed’ because it is not motivating without other students.

Here’s their own actual positive case:

What if we were brutally honest when a family enrolls their child in school? Here’s what we would say:

  1. If your child is a no-structure learner, they will be bored here. They will probably learn some things, but they will often sit in lessons where they know everything the teacher is teaching, and they’ll spend a lot of their time sitting around waiting for other students to catch up.

  2. If your child is a low-structure learner, they will still often be bored as our school isn’t very efficient, but the structure and routine will ensure they get a basic level of literacy and numeracy. Maybe they’ll like school, probably because of gym class and being around their friends, maybe they won’t, but they’ll learn some things.

  3. That said, the school you pick doesn’t matter too much. Your child will learn about as much anywhere else. If your child is a high-structure learner, they will need a lot of very structured teaching.

  4. Our teachers vary widely: some are good at providing that structure, others aren’t. Your child will gradually fall behind, and will perpetually feel a bit dumb and a bit slow compared to everyone else. But we will do our best to keep them moving along with their peers because that’s the best idea we have to motivate them.

  5. Hopefully, with some help, they’ll graduate high school on time. There’s a risk they just won’t have the skills, or they’ll be discouraged by constantly feeling dumb and just give up.

  6. Oh, and we aren’t very good at understanding what causes students to be motivated. It’s absolutely correlated with socioeconomic status, so it would be helpful if you’re rich, but there’s a lot of variability and plenty of rich kids need that structure too.

That’s the case from the person who thinks school is designed properly? That’s what you want to do with childhood?

Burn. It. With. Fire.

(Or, ideally, if we keep our heads, reenact Cool Guys Don’t Look At Explosions.)

What good is the hypothesis that school is designed to maximize motivation? It can help us understand all sorts of phenomena.

I often hear an argument from homeschoolers that they can accomplish in two hours a day (or some other small amount of time) what schools do in seven or eight. I don’t doubt that at all. Schools aren’t particularly efficient at facilitating learning. Schools are good at educating everyone at once.

So why would anyone with the means to not do so send their child to such a thing?

You might think that we’ve found the solution to tracking. We just need to get all the no- and low-structure learners together and let them move much faster.

Here’s the issue. The no-structure learners will always be bored, as long as we are committed to putting them into classrooms where everyone learns the same thing. And those classrooms where everyone learns the same thing are exactly what the low-structure learners need.

As soon as you create a higher track there will be a ton of demand for it. Parents will insist that their kid join. And as it grows, it won’t be able to accelerate very quickly. You still need the structure of a classroom where everyone is learning the same thing, and that just isn’t a very efficient way to teach.

So, now hear me out… don’t use classrooms that require this? These are no-structure learners, who by your own admission will always be bored in your classes, so don’t impose your god damned stupid class structure on them at all?

Or, if you can’t do that in context, and again hear me out… create different tracks, use tests as gates for them, and if the kid can’t hack the one moving quickly, move them out of the track into another one that they can handle?

And what about all the reports that Montessori does motivation way better than standard school systems, if you are not trying to do a full revolution?

Tracking is necessary in high school because students diverge too much (despite forcing them not to beforehand) but definitely fails earlier because of reasons, despite all the parents favoring it and everyone involved constantly saying it works (and my understanding of the research also saying that it very clearly works)?

I would also ask the author, so if Alpha School’s methods did successfully motivate students to learn, would you then have everyone switch over? If not, why not?

There were constant assertions of what we can’t do or doesn’t work, including all of ‘personalization,’ without evidence. The piece is infuriating throughout. It did not update me the way the author intended.

After all of this, am I going to consider Alpha School New York? Absolutely. I went to schedule a tour, although they don’t seem to have anything available until October. I do notice that one thing that wasn’t discussed were behavioral issues that might interfere with getting the child to use the software. But also I notice that children with behavioral issues usually are happy to get into using software, so this could easily be a much lower difficulty problem.

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