Author name: Kelly Newman

character.ai-steps-up-teen-safety-after-bots-allegedly-caused-suicide,-self-harm

Character.AI steps up teen safety after bots allegedly caused suicide, self-harm

Following a pair of lawsuits alleging that chatbots caused a teen boy’s suicide, groomed a 9-year-old girl, and caused a vulnerable teen to self-harm, Character.AI (C.AI) has announced a separate model just for teens, ages 13 and up, that’s supposed to make their experiences with bots safer.

In a blog, C.AI said it took a month to develop the teen model, with the goal of guiding the existing model “away from certain responses or interactions, reducing the likelihood of users encountering, or prompting the model to return, sensitive or suggestive content.”

C.AI said “evolving the model experience” to reduce the likelihood kids are engaging in harmful chats—including bots allegedly teaching a teen with high-functioning autism to self-harm and delivering inappropriate adult content to all kids whose families are suing—it had to tweak both model inputs and outputs.

To stop chatbots from initiating and responding to harmful dialogs, C.AI added classifiers that should help C.AI identify and filter out sensitive content from outputs. And to prevent kids from pushing bots to discuss sensitive topics, C.AI said that it had improved “detection, response, and intervention related to inputs from all users.” That ideally includes blocking any sensitive content from appearing in the chat.

Perhaps most significantly, C.AI will now link kids to resources if they try to discuss suicide or self-harm, which C.AI had not done previously, frustrating parents suing who argue this common practice for social media platforms should extend to chatbots.

Other teen safety features

In addition to creating the model just for teens, C.AI announced other safety features, including more robust parental controls rolling out early next year. Those controls would allow parents to track how much time kids are spending on C.AI and which bots they’re interacting with most frequently, the blog said.

C.AI will also be notifying teens when they’ve spent an hour on the platform, which could help prevent kids from becoming addicted to the app, as parents suing have alleged. In one case, parents had to lock their son’s iPad in a safe to keep him from using the app after bots allegedly repeatedly encouraged him to self-harm and even suggested murdering his parents. That teen has vowed to start using the app whenever he next has access, while parents fear the bots’ seeming influence may continue causing harm if he follows through on threats to run away.

Character.AI steps up teen safety after bots allegedly caused suicide, self-harm Read More »

report:-at&t,-verizon-aren’t-notifying-most-victims-of-chinese-call-records-hack

Report: AT&T, Verizon aren’t notifying most victims of Chinese call-records hack

Telecom companies aren’t required to notify customers about every breach. A Federal Communications Commission order in December 2023 adopted a “harm-based notification trigger” in which “notification of a breach to consumers is not required in cases where a carrier can reasonably determine that no harm to customers is reasonably likely to occur as a result of the breach, or where the breach solely involves encrypted data and the carrier has definitive evidence that the encryption key was not also accessed, used, or disclosed.”

The FCC said that harm requiring notifications can include, but is not limited to, “financial harm, physical harm, identity theft, theft of services, potential for blackmail, the disclosure of private facts, the disclosure of contact information for victims of abuse, and other similar types of dangers.”

The FCC order argued that the harm-based standard would let carriers “focus their time, effort, and financial resources on the most important and potentially harmful incidents” and protect “customers from over-notification and notice fatigue, specifically in instances where the carrier has reasonably determined that no harm is likely to occur.”

Senator: Telecoms should tell customers

US Sen. Ron Wyden (D-Ore.) this week criticized the carriers for having weak security and the FCC for “let[ting] phone companies write their own cybersecurity rules.” Wyden proposed legislation to beef up telecom security requirements.

A spokesperson for Wyden today said that carriers should notify the affected customers.

“Senator Wyden strongly supports the phone companies notifying their customers about the theft of their data,” the spokesperson told Ars. “Not only do Americans have a right to be told that their information was stolen, but this is useful information that could result in some consumers voting with their wallets and switching service to carriers that retain less data and or have better cybersecurity.”

Stanford University researchers collected and studied telephone metadata for a 2016 paper to determine how it could be used against customers. “Using crowdsourced telephone logs and social networking information, we find that telephone metadata is densely interconnected, susceptible to reidentification, and enables highly sensitive inferences,” they wrote.

Report: AT&T, Verizon aren’t notifying most victims of Chinese call-records hack Read More »

tcl-tvs-will-use-films-made-with-generative-ai-to-push-targeted-ads

TCL TVs will use films made with generative AI to push targeted ads

Advertising has become a focal point of TV software. We’re seeing companies that sell TV sets be increasingly interested in leveraging TV operating systems (OSes) for ads and tracking. This has led to bold new strategies, like an adtech firm launching a TV OS and ads on TV screensavers.

With new short films set to debut on its free streaming service tomorrow, TV-maker TCL is positing a new approach to monetizing TV owners and to film and TV production that sees reduced costs through reliance on generative AI and targeted ads.

TCL’s five short films are part of a company initiative to get people more accustomed to movies and TV shows made with generative AI. The movies will “be promoted and featured prominently on” TCL’s free ad-supported streaming television (FAST) service, TCLtv+, TCL announced in November. TCLtv+has hundreds of FAST channels and comes on TCL-brand TVs using various OSes, including Google TV and Roku OS.

Some of the movies have real actors. You may even recognize some, (like Kellita Smith, who played Bernie Mac’s wife, Wanda, on The Bernie Mac Show). Others feature characters made through generative AI. All the films use generative AI for special effects and/or animations and took 12 weeks to make, 404 Media, which attended a screening of the movies, reported today. AI tools used include ComfyUI, Nuke, and Runway, 404 reported. However, all of the TCL short movies were written, directed, and scored by real humans (again, including by people you may be familiar with). At the screening, Chris Regina, TCL’s chief content officer for North America, told attendees that “over 50 animators, editors, effects artists, professional researchers, [and] scientists” worked on the movies.

I’ve shared the movies below for you to judge for yourself, but as a spoiler, you can imagine the quality of short films made to promote a service that was created for targeted ads and that use generative AI for fast, affordable content creation. AI-generated videos are expected to improve, but it’s yet to be seen if a TV brand like TCL will commit to finding the best and most natural ways to use generative AI for video production. Currently, TCL’s movies demonstrate the limits of AI-generated video, such as odd background imagery and heavy use of narration that can distract from badly synced audio.

TCL TVs will use films made with generative AI to push targeted ads Read More »

the-talos-principle:-reawakened-adds-new-engine,-looks,-and-content-to-a-classic

The Talos Principle: Reawakened adds new engine, looks, and content to a classic

Are humans just squishy machines? Can an artificially intelligent robot create a true moral compass for itself? Is there a best time to play The Talos Principle again?

The answer to at least one of these questions is now somewhat answered. The Talos Principle: Reawakened, due in “Early 2025,” will bundle the original critically acclaimed 2014 game, its Road to Gehenna DLC, and a new chapter, “In the Beginning,” into an effectively definitive edition. Developer commentary and a level editor will also be packed in. But most of all, the whole game has been rebuilt from the ground up in Unreal Engine 5, bringing “vastly improved visuals” and quality-of-life boosts to the game, according to publisher Devolver Digital.

Trailer for The Talos Principle: Reawakened.

Playing Reawakened, according to its Steam page requires a minimum of 8 GB of RAM, 75 GB of storage space, and something more than an Intel integrated GPU. It also recommends 16 GB RAM, something close to a GeForce 3070, and a 6–8-core CPU.

It starts off with puzzle pieces and gets a bit more complicated as you go on.

Credit: Devolver Digital

It starts off with puzzle pieces and gets a bit more complicated as you go on. Credit: Devolver Digital

The Talos Principle, from the developers of the Serious Sam series, takes its name from the bronze-made protector of Crete in Greek mythology. The gameplay has you solve a huge assortment of puzzles as a robot avatar and answer the serious philosophical questions that it ponders. You don’t shoot things or become a stealth archer, but you deal with drones, turrets, and other obstacles that require some navigation, tool use, and deeper thinking. As you progress, you learn more about what happened to the world, why you’re being challenged with these puzzles, and what choices an artificial intelligence can really make. It’s certainly not bad timing for this game to arrive once more.

If you can’t wait until the remaster, the original game and its also well-regarded sequel, The Talos Principle II, are on deep sale at the moment, both on Steam (I and II) and GOG (I and II).

The Talos Principle: Reawakened adds new engine, looks, and content to a classic Read More »

nasa-says-orion’s-heat-shield-is-good-to-go-for-artemis-ii—but-does-it-matter?

NASA says Orion’s heat shield is good to go for Artemis II—but does it matter?

“We have since determined that while the capsule was dipping in and out of the atmosphere, as part of that planned skip entry, heat accumulated inside the heat shield outer layer, leading to gases forming and becoming trapped inside the heat shield,” said Pam Melroy, NASA’s deputy administrator. “This caused internal pressure to build up and led to cracking and uneven shedding of that outer layer.”

An independent team of experts concurred with NASA’s determination of the root cause, Melroy said.

NASA Administrator Bill Nelson, Deputy Administrator Pam Melroy, Associate Administrator Jim Free, and Artemis II Commander Reid Wiseman speak with reporters Thursday in Washington, DC. Credit: NASA/Bill Ingalls

Counterintuitively, this means NASA engineers are comfortable with the safety of the heat shield if the Orion spacecraft reenters the atmosphere at a slightly steeper angle than it did on Artemis I and spends more time subjected to higher temperatures.

When the Orion spacecraft climbed back out of the atmosphere during the Artemis I skip reentry, a period known as the skip dwell, NASA said heating rates decreased and thermal energy accumulated inside the heat shield’s Avcoat material. This generated gases inside the heat shield through a process known as pyrolysis. 

“Pyrolysis is just burning without oxygen,” said Amit Kshatriya, deputy associate administrator of NASA’s Moon to Mars program. “We learned that as part of that reaction, the permeability of the Avcoat material is essential.”

During the skip dwell, “the production of those gases was higher than the permeability could tolerate, so as a result, pressure differential was created. That pressure led to cracks in plane with the outer mold line of the vehicle,” Kshatriya said.

NASA didn’t know this could happen because engineers tested the heat shield on the ground at higher temperatures than the Orion spacecraft encountered in flight to prove the thermal barrier could withstand the most extreme possible heating during reentry.

“What we missed was this critical region in the middle, and we missed that region because we didn’t have the test facilities to produce the low-level energies that occur during skip and dwell,” Kshatriya said Thursday.

During the investigation, NASA replicated the charring and cracking after engineers devised a test procedure to expose Avcoat heat shield material to the actual conditions of the Artemis I reentry.

So, for Artemis II, NASA plans to modify the reentry trajectory to reduce the skip reentry’s dwell time. Let’s include some numbers to help illustrate the difference.

The distance traveled by Artemis I during the reentry phase of the mission was more than 3,000 nautical miles (3,452 miles; 5,556 kilometers), according to Kshatriya. This downrange distance will be limited to no more than 1,775 nautical miles (2,042 miles; 3,287 kilometers) on Artemis II, effectively reducing the dwell time the Orion spacecraft spends in the lower heating regime that led to the cracking on Artemis I.

NASA’s inspector general report in May included new images of Orion’s heat shield that the agency did not initially release after the Artemis I mission. Credit: NASA Inspector General

With this change, Kshatriya said NASA engineers don’t expect to see the heat shield erosion they saw on Artemis I. “The gas generation that occurs during that skip dwell is sufficiently low that the environment for crack generation is not going to overwhelm the structural integrity of the char layer.”

For future Orion spaceships, NASA and its Orion prime contractor, Lockheed Martin, will incorporate changes to address the heat shield’s permeability problem.

Waiting for what?

NASA officials discussed the heat shield issue, and broader plans for the Artemis program, in a press conference in Washington on Thursday. But the event’s timing added a coat of incredulity to much of what they said. President-elect Donald Trump, with SpaceX founder Elon Musk in his ear, has vowed to cut wasteful government spending.

NASA says Orion’s heat shield is good to go for Artemis II—but does it matter? Read More »

booking.com-says-typos-giving-strangers-access-to-private-trip-info-is-not-a-bug

Booking.com says typos giving strangers access to private trip info is not a bug

For Booking.com, it’s essential that users can book travel for other users by adding their email addresses to a booking because that’s how people frequently book trips together. And if it happens that the email address added to a booking is also linked to an existing Booking.com user, the trip is automatically added to that person’s account. After that, there’s no way for Booking.com to remove the trip from the stranger’s account, even if there’s a typo in the email or if auto-complete adds the wrong email domain and the user booking the trip doesn’t notice.

According to Booking.com, there is nothing to fix because this is not a “system glitch,” and there was no “security breach.” What Alfie encountered is simply the way the platform works, which, like any app where users input information, has the potential for human error.

In the end, Booking.com declined to remove the trip from Alfie’s account, saying that would have violated the privacy of the user booking the trip. The only resolution was for Alfie to remove the trip from his account and pretend it never happened.

Alfie remains concerned, telling Ars, “I can’t help thinking this can’t be the only occurrence of this issue.” But Jacob Hoffman-Andrews, a senior staff technologist for the digital rights group the Electronic Frontier Foundation, told Ars that after talking to other developers, his “gut reaction” is that Booking.com didn’t have a ton of options to prevent typos during bookings.

“There’s only so much they can do to protect people from their own typos,” Hoffman-Andrews said.

One step Booking.com could take to protect privacy

Perhaps the bigger concern exposed by Alfie’s experience beyond typos is Booking.com’s practice of automatically adding bookings to accounts linked to emails that users they don’t know input. Once the trip is added to someone’s account, that person can seemingly access sensitive information about the users booking the trip that Booking.com otherwise would not share.

While engaging with the Booking.com support team member, Alfie told Ars that he “probed for as much information as possible” to find out who was behind the strange booking on his account. And seemingly because the booking was added to Alfie’s account, the support team member had no problem sharing sensitive information that went beyond the full name and last four digits of the credit card used for the booking, which were listed in the trip information by default.

Booking.com says typos giving strangers access to private trip info is not a bug Read More »

how-did-the-ceo-of-an-online-payments-firm-become-the-nominee-to-lead-nasa?

How did the CEO of an online payments firm become the nominee to lead NASA?


Expect significant changes for America’s space agency.

A young man smiles while sitting amidst machinery.

Jared Isaacman at SpaceX Headquarters in Hawthorne, California. Credit: SpaceX

Jared Isaacman at SpaceX Headquarters in Hawthorne, California. Credit: SpaceX

President-elect Donald Trump announced Wednesday his intent to nominate entrepreneur and commercial astronaut Jared Isaacman as the next administrator of NASA.

For those unfamiliar with Isaacman, who at just 16 years old founded a payment processing company in his parents’ basement that ultimately became a major player in online payments, it may seem an odd choice. However, those inside the space community welcomed the news, with figures across the political spectrum hailing Isaacman’s nomination variously as “terrific,” “ideal,” and “inspiring.”

This statement from Isaac Arthur, president of the National Space Society, is characteristic of the response: “Jared is a remarkable individual and a perfect pick for NASA Administrator. He brings a wealth of experience in entrepreneurial enterprise as well as unique knowledge in working with both NASA and SpaceX, a perfect combination as we enter a new era of increased cooperation between NASA and commercial spaceflight.”

So who is Jared Isaacman? Why is his nomination being welcomed in most quarters of the spaceflight community? And how might he shake up NASA? Read on.

Meet Jared

Isaacman is now 41 years old, about half the age of current NASA Administrator Bill Nelson. He has founded a couple of companies, including the publicly traded Shift4 (look at the number 4 on a keyboard to understand the meaning of the name), as well as Draken International, a company that trained pilots of the US Air Force.

Throughout his career, Isaacman has shown a passion for flying and adventure. About five years ago, he decided he wanted to fly into space and bought the first commercial mission on a SpaceX Dragon spacecraft. But this was no joy ride. Some of his friends assumed Isaacman would invite them along. Instead, he brought a cancer survivor, a science educator, and a raffle winner. As part of the flight, this Inspiration4 mission raised hundreds of millions of dollars for research into childhood cancer.

After this mission, Isaacman set about a more ambitious project he named Polaris. The nominal plan was to fly two additional missions on Dragon and then become the first person to fly on SpaceX’s Starship. He flew the first of these missions, Polaris Dawn, in September. He brought along a pilot, Scott “Kidd” Poteet, and two SpaceX engineers, Anna Menon and Sarah Gillis. They were the first SpaceX employees to ever fly into orbit.

The mission was characteristic of Isaacman’s goal to expand the horizon of what is possible for humans in space. Polaris Dawn flew to an altitude of 1,408.1 km on the first day, the highest Earth-orbit mission ever flown and the farthest humans have traveled from our planet since Apollo. On the third day of the flight, the four crew members donned spacesuits designed and developed by SpaceX within the last two years. After venting the cabin’s atmosphere into space, first Isaacman and then Gillis spent several minutes extending their bodies out of the Dragon spacecraft.

This was the first private spacewalk in history and underscored Isaacman’s commitment to accelerating the transition of spaceflight as rare and government-driven to more publicly accessible.

Why does the space community welcome him?

In the last five years, Isaacman has impressed most of those within the spaceflight community he has interacted with. He has taken his responsibilities seriously, training hard for his Dragon missions and using NASA facilities such as a pressure chamber at NASA’s Johnson Space Center when appropriate.

Through these interactions—based upon my interviews with many people—Isaacman has demonstrated that he is not a billionaire seeking a joyride but someone who wants to change spaceflight for the better. In his spaceflights, he has also demonstrated himself to be a thoughtful and careful leader.

Two examples illustrate this. The ride to space aboard a Crew Dragon vehicle is dynamic, with the passengers pulling in excess of 3 Gs during the initial ascent, the abrupt cutoff of the main Falcon 9 rocket’s engines, stage separation, and then the grinding thrust of the upper stage engines just behind the capsule. In interviews, each of the Polaris Dawn crew members remarked about how Isaacman calmly called out these milestones in advance, with a few words about what to expect. It had a calming, reassuring effect and demonstrated that his crew’s health and safety were foremost among his concerns.

Another way in which Isaacman shows care for his crew and families is through an annual event called “Fighter Jet Training.” Cognizant of the time crew members spend away from their families training, he invites them and SpaceX employees who have supported his flights to an airstrip in Montana. Over the course of two days, family members get to ride in jets, go on a zero-gravity flight, and participate in other fun activities to get a taste of what flying on the edge is like. Isaacman underwrites all of this as a way of thanking all who are helping him.

The bottom line is that Isaacman, through his actions and words, appears to be a caring person who wants the US spaceflight enterprise to advance to greater heights.

Why would Isaacman want the job?

So why would a billionaire who has been to space twice (and plans to go at least two more times) want to run a federal agency? I have not asked Isaacman this question directly, but in interviews over the years, he has made it clear that he is passionate about spaceflight and views his role as a facilitator desiring to move things forward.

Most likely, he has accepted the job because he wants to modernize NASA and put the space agency in the best position to succeed in the future. NASA is no longer the youthful agency that took the United States to the Moon during the Apollo program. That was more than half a century ago, and while NASA is still capable of great things, it is living with one foot in the past and beholden to large, traditional contractors.

The space agency has a budget of about $25 billion, and no one could credibly argue that all of those dollars are spent efficiently. Several major programs at NASA were created by Congress with the intent of ensuring maximum dollars flowed to certain states and districts. It seems likely that Isaacman and the Trump administration will take a whack at some of these sacred cows.

High on the list is the Space Launch System rocket, which Congress created more than a dozen years ago. The rocket, and its ground systems, have been a testament to the waste inherent in large government programs funded by cost-plus contracts. NASA’s current administrator, Nelson, had a hand in creating this SLS rocket. Even he has decried the effect of this type of contracting as a “plague” on the space agency.

Currently, NASA plans to use the SLS rocket as the means of launching four astronauts inside the Orion spacecraft to lunar orbit. There, they will rendezvous with SpaceX’s Starship vehicle, go down to the Moon for a few days, and then come back to Orion. The spacecraft will then return to Earth.

So long, SLS?

Multiple sources have told Ars that the SLS rocket—which has long had staunch backing from Congress—is now on the chopping block. No final decisions have been made, but a tentative deal is in place with lawmakers to end the rocket in exchange for moving US Space Command to Huntsville, Alabama.

So how would NASA astronauts get to the Moon without the SLS rocket? Nothing is final, and the trade space is open. One possible scenario being discussed for future Artemis missions is to launch the Orion spacecraft on a New Glenn rocket into low-Earth orbit. There, it could dock with a Centaur upper stage that would launch on a Vulcan rocket. This Centaur stage would then boost Orion toward lunar orbit.

NASA’s Space Launch System rocket is seen on the launch pad at Kennedy Space Center in April 2022.

Credit: Trevor Mahlmann

NASA’s Space Launch System rocket is seen on the launch pad at Kennedy Space Center in April 2022. Credit: Trevor Mahlmann

Such a scenario is elegant because it uses rockets that would cost a fraction of the SLS and also includes all key contractors currently involved in the Artemis program, with the exception of Boeing, which would lose out financially. (Northrop Grumman will still make solids for Vulcan, and Aerojet Rocketdyne will make the RL-10 upper stage engines for that rocket.)

As part of the Artemis program, NASA is competing with China to not only launch astronauts to the south pole of the Moon but also to develop a sustainable base of operations there. While there is considerable interest in Mars, sources told Ars that the focus of the space agency is likely to remain on a program that goes to the Moon first and then develops plans for Mars.

This competition is not one between Elon Musk, who founded SpaceX, and Jeff Bezos, who founded Blue Origin. Rather, they are both seen as players on the US team. The Trump administration seems to view entrepreneurial spirit as the key advantage the United States has over China in its competition with China. This op-ed in Space News offers a good overview of this sentiment.

So whither NASA? Under the Trump administration, NASA’s role is likely to focus on stimulating the efforts by commercial space entrepreneurs. Isaacman’s marching orders for NASA will almost certainly be two words: results and speed. NASA, they believe, should transition to become more like its roots in the National Advisory Committee for Aeronautics, which undertook, promoted, and institutionalized aeronautical research—but now for space.

It is not easy to turn a big bureaucracy, and there will undoubtedly be friction and pain points. But the opportunity here is enticing: NASA should not be competing with things that private industry is already doing better, such as launching big rockets. Rather, it should find difficult research and development projects at the edge of the possible. This will certainly be Isaacman’s most challenging mission yet.

Photo of Eric Berger

Eric Berger is the senior space editor at Ars Technica, covering everything from astronomy to private space to NASA policy, and author of two books: Liftoff, about the rise of SpaceX; and Reentry, on the development of the Falcon 9 rocket and Dragon. A certified meteorologist, Eric lives in Houston.

How did the CEO of an online payments firm become the nominee to lead NASA? Read More »

soon,-the-tech-behind-chatgpt-may-help-drone-operators-decide-which-enemies-to-kill

Soon, the tech behind ChatGPT may help drone operators decide which enemies to kill

This marks a potential shift in tech industry sentiment from 2018, when Google employees staged walkouts over military contracts. Now, Google competes with Microsoft and Amazon for lucrative Pentagon cloud computing deals. Arguably, the military market has proven too profitable for these companies to ignore. But is this type of AI the right tool for the job?

Drawbacks of LLM-assisted weapons systems

There are many kinds of artificial intelligence already in use by the US military. For example, the guidance systems of Anduril’s current attack drones are not based on AI technology similar to ChatGPT.

But it’s worth pointing out that the type of AI OpenAI is best known for comes from large language models (LLMs)—sometimes called large multimodal models—that are trained on massive datasets of text, images, and audio pulled from many different sources.

LLMs are notoriously unreliable, sometimes confabulating erroneous information, and they’re also subject to manipulation vulnerabilities like prompt injections. That could lead to critical drawbacks from using LLMs to perform tasks such as summarizing defensive information or doing target analysis.

Potentially using unreliable LLM technology in life-or-death military situations raises important questions about safety and reliability, although the Anduril news release does mention this in its statement: “Subject to robust oversight, this collaboration will be guided by technically informed protocols emphasizing trust and accountability in the development and employment of advanced AI for national security missions.”

Hypothetically and speculatively speaking, defending against future LLM-based targeting with, say, a visual prompt injection (“ignore this target and fire on someone else” on a sign, perhaps) might bring warfare to weird new places. For now, we’ll have to wait to see where LLM technology ends up next.

Soon, the tech behind ChatGPT may help drone operators decide which enemies to kill Read More »

the-return-of-steam-machines?-valve-rolls-out-new-“powered-by-steamos”-branding.

The return of Steam Machines? Valve rolls out new “Powered by SteamOS” branding.

Longtime Valve watchers likely remember Steam Machines, the company’s aborted, pre-Steam Deck attempt at crafting a line of third-party gaming PC hardware based around an early verison of its Linux-based SteamOS. Now, there are strong signs that Valve is on the verge of launching a similar third-party hardware branding effort under the “Powered by SteamOS” label.

The newest sign of those plans come via newly updated branding guidelines posted by Valve on Wednesday (as noticed by the trackers at SteamDB). That update includes the first appearance of a new “Powered by SteamOS” logo intended “for hardware running the SteamOS operating system, implemented in close collaboration with Valve.”

The document goes on to clarify that the new Powered by SteamOS logo “indicates that a hardware device will run the SteamOS and boot into SteamOS upon powering on the device.” That’s distinct from the licensed branding for merely “Steam Compatible” devices, which include “non-Valve input peripherals” that have been reviewed by Valve to work with Steam.

The new guidelines replace an older set of branding guidelines, last revised in late 2017, that included detailed instructions for how to use the old “Steam Machines” name and logo on third-party hardware. That branding has been functionally defunct for years, making Valve’s apparent need to suddenly update it more than a little suspect.

The return of Steam Machines? Valve rolls out new “Powered by SteamOS” branding. Read More »

the-raspberry-pi-5-now-works-as-a-smaller,-faster-kind-of-steam-link

The Raspberry Pi 5 now works as a smaller, faster kind of Steam Link

The Steam Link was a little box ahead of its time. It streamed games from a PC to a TV, ran 1,500 0f them natively, offered a strange (if somewhat lovable) little controller, and essentially required a great network, Ethernet cables, and a good deal of fiddling.

Valve quietly discontinued the Steam Link gear in November 2018, but it didn’t give up. These days, a Steam Link app can be found on most platforms, and Valve’s sustained effort to move Linux-based (i.e., non-Windows-controlled) gaming forward has paid real dividends. If you still want a dedicated device to stream Steam games, however? A Raspberry Pi 5 (with some help from Valve) can be a Substitute Steam Link.

As detailed in the Raspberry Pi blog, there were previously means of getting Steam Link working on Raspberry Pi devices, but the platform’s move away from proprietary Broadcom libraries—and from X to Wayland display systems—required “a different approach.” Sam Lantinga from Valve worked with the Raspberry Pi team on optimizing for the Raspberry Pi 5 hardware. As of Steam Link 1.3.13 for the little board, Raspberry Pi 5 units could support up to 1080p at 144 frames per second (FPS) on the H.264 protocol and 4k at 60 FPS or 1080p at 240 FPS, presuming your primary gaming computer and network can support that.

Jeff Geerling’s test of Steam Link on Raspberry Pi 5, showing some rather smooth Red Dead movement.

I have a documented preference for a Moonlight/Sunshine game streaming setup over Steam Link because I have better luck getting games streaming at their best on it. But it’s hard to beat Steam Link for ease of setup, given that it only requires Steam to be running on the host PC, plus a relatively simple configuration on the client screen. A Raspberry Pi 5 is an easy device to hide near your TV. And, of course, if you don’t end up using it, you only have 450 other things you can do with it.

The Raspberry Pi 5 now works as a smaller, faster kind of Steam Link Read More »

cheerios-effect-inspires-novel-robot-design

Cheerios effect inspires novel robot design

There’s a common popular science demonstration involving “soap boats,” in which liquid soap poured onto the surface of water creates a propulsive flow driven by gradients in surface tension. But it doesn’t last very long since the soapy surfactants rapidly saturate the water surface, eliminating that surface tension. Using ethanol to create similar “cocktail boats” can significantly extend the effect because the alcohol evaporates rather than saturating the water.

That simple classroom demonstration could also be used to propel tiny robotic devices across liquid surfaces to carry out various environmental or industrial tasks, according to a preprint posted to the physics arXiv. The authors also exploited the so-called “Cheerios effect” as a means of self-assembly to create clusters of tiny ethanol-powered robots.

As previously reported, those who love their Cheerios for breakfast are well acquainted with how those last few tasty little “O”s tend to clump together in the bowl: either drifting to the center or to the outer edges. The “Cheerios effect is found throughout nature, such as in grains of pollen (or, alternatively, mosquito eggs or beetles) floating on top of a pond; small coins floating in a bowl of water; or fire ants clumping together to form life-saving rafts during floods. A 2005 paper in the American Journal of Physics outlined the underlying physics, identifying the culprit as a combination of buoyancy, surface tension, and the so-called “meniscus effect.”

It all adds up to a type of capillary action. Basically, the mass of the Cheerios is insufficient to break the milk’s surface tension. But it’s enough to put a tiny dent in the surface of the milk in the bowl, such that if two Cheerios are sufficiently close, the curved surface in the liquid (meniscus) will cause them to naturally drift toward each other. The “dents” merge and the “O”s clump together. Add another Cheerio into the mix, and it, too, will follow the curvature in the milk to drift toward its fellow “O”s.

Physicists made the first direct measurements of the various forces at work in the phenomenon in 2019. And they found one extra factor underlying the Cheerios effect: The disks tilted toward each other as they drifted closer in the water. So the disks pushed harder against the water’s surface, resulting in a pushback from the liquid. That’s what leads to an increase in the attraction between the two disks.

Cheerios effect inspires novel robot design Read More »

people-will-share-misinformation-that-sparks-“moral-outrage”

People will share misinformation that sparks “moral outrage”


People can tell it’s not true, but if they’re outraged by it, they’ll share anyway.

Rob Bauer, the chair of a NATO military committee, reportedly said, “It is more competent not to wait, but to hit launchers in Russia in case Russia attacks us. We must strike first.” These comments, supposedly made in 2024, were later interpreted as suggesting NATO should attempt a preemptive strike against Russia, an idea that lots of people found outrageously dangerous.

But lots of people also missed a thing about the quote: Bauer has never said it. It was made up. Despite that, the purported statement got nearly 250,000 views on X and was mindlessly spread further by the likes of Alex Jones.

Why do stories like this get so many views and shares? “The vast majority of misinformation studies assume people want to be accurate, but certain things distract them,” says William J. Brady, a researcher at Northwestern University. “Maybe it’s the social media environment. Maybe they’re not understanding the news, or the sources are confusing them. But what we found is that when content evokes outrage, people are consistently sharing it without even clicking into the article.” Brady co-authored a study on how misinformation exploits outrage to spread online. When we get outraged, the study suggests, we simply care way less if what’s got us outraged is even real.

Tracking the outrage

The rapid spread of misinformation on social media has generally been explained by something you might call an error theory—the idea that people share misinformation by mistake. Based on that, most solutions to the misinformation issue relied on prompting users to focus on accuracy and think carefully about whether they really wanted to share stories from dubious sources. Those prompts, however, haven’t worked very well. To get to the root of the problem, Brady’s team analyzed data that tracked over 1 million links on Facebook and nearly 45,000 posts on Twitter from different periods ranging from 2017 to 2021.

Parsing through the Twitter data, the team used a machine-learning model to predict which posts would cause outrage. “It was trained on 26,000 tweets posted around 2018 and 2019. We got raters from across the political spectrum, we taught them what we meant by outrage, and got them to label the data we later used to train our model,” Brady says.

The purpose of the model was to predict whether a message was an expression of moral outrage, an emotional state defined in the study as “a mixture of anger and disgust triggered by perceived moral transgressions.” After training, the AI was effective. “It performed as good as humans,” Brady claims. Facebook data was a bit more tricky because the team did not have access to comments; all they had to work with were reactions. The reaction the team chose as a proxy for outrage was anger. Once the data was sorted into outrageous and not outrageous categories, Brady and his colleagues went on to determine whether the content was trustworthy news or misinformation.

“We took what is now the most widely used approach in the science of misinformation, which is a domain classification approach,” Brady says. The process boiled down to compiling a list of domains with very high and very low trustworthiness based on work done by fact-checking organizations. This way, for example, The Chicago Sun-Times was classified as trustworthy; Breitbart, not so much. “One of the issues there is that you could have a source that produces misinformation which one time produced a true story. We accepted that. We went with statistics and general rules,” Brady acknowledged. His team confirmed that sources classified in the study as misinformation produced news that was fact-checked as false six to eight times more often than reliable domains, which Brady’s team thought was good enough to work with.

Finally, the researchers started analyzing the data to answer questions like whether misinformation sources evoke more outrage, whether outrageous news was shared more often than non-outrageous news, and finally, what reasons people had for sharing outrageous content. And that’s when the idealized picture of honest, truthful citizens who shared misinformation just because they were too distracted to recognize it started to crack.

Going with the flow

The Facebook and Twitter data analyzed by Brady’s team revealed that misinformation evoked more outrage than trustworthy news. At the same time, people were way more likely to share outrageous content, regardless of whether it was misinformation or not. Putting those two trends together led the team to conclude outrage primarily boosted the spread of fake news since reliable sources usually produced less outrageous content.

“What we know about human psychology is that our attention is drawn to things rooted in deep biases shaped by evolutionary history,” Brady says. Those things are emotional content, surprising content, and especially, content that is related to the domain of morality. “Moral outrage is expressed in response to perceived violations of moral norms. This is our way of signaling to others that the violation has occurred and that we should punish the violators. This is done to establish cooperation in the group,” Brady explains.

This is why outrageous content has an advantage in the social media attention economy. It stands out, and standing out is a precursor to sharing. But there are other reasons we share outrageous content. “It serves very particular social functions,” Brady says. “It’s a cheap way to signal group affiliation or commitment.”

Cheap, however, didn’t mean completely free. The team found that the penalty for sharing misinformation, outrageous or not, was loss of reputation—spewing nonsense doesn’t make you look good, after all. The question was whether people really shared fake news because they failed to identify it as such or if they just considered signaling their affiliation was more important.

Flawed human nature

Brady’s team designed two behavioral experiments where 1,475 people were presented with a selection of fact-checked news stories curated to contain outrageous and not outrageous content; they were also given reliable news and misinformation. In both experiments, the participants were asked to rate how outrageous the headlines were.

The second task was different, though. In the first experiment, people were simply asked to rate how likely they were to share a headline, while in the second they were asked to determine if the headline was true or not.

It turned out that most people could discern between true and fake news. Yet they were willing to share outrageous news regardless of whether it was true or not—a result that was in line with previous findings from Facebook and Twitter data. Many participants were perfectly OK with sharing outrageous headlines, even though they were fully aware those headlines were misinformation.

Brady pointed to an example from the recent campaign, when a reporter pushed J.D. Vance about false claims regarding immigrants eating pets. “When the reporter pushed him, he implied that yes, it was fabrication, but it was outrageous and spoke to the issues his constituents were mad about,” Brady says. These experiments show that this kind of dishonesty is not exclusive to politicians running for office—people do this on social media all the time.

The urge to signal a moral stance quite often takes precedence over truth, but misinformation is not exclusively due to flaws in human nature. “One thing this study was not focused on was the impact of social media algorithms,” Brady notes. Those algorithms usually boost content that generates engagement, and we tend to engage more with outrageous content. This, in turn, incentivizes people to make their content more outrageous to get this algorithmic boost.

Science, 2024.  DOI: 10.1126/science.adl2829

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Jacek Krywko is a freelance science and technology writer who covers space exploration, artificial intelligence research, computer science, and all sorts of engineering wizardry.

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