This is The Stepback, a weekly newsletter breaking down one essential story from the tech world. For more stories on Big Tech versus politics in Washington, DC, follow Tina Nguyen and read Regulator. The Stepback arrives in our subscribers’ inboxes at 8AM ET. Opt in for The Stepback here.
Technology
Tiny autonomous robots can now swim on their own
NEWYou can now listen to Fox News articles!
For decades, microscopic robots lived mostly in our imagination. Movies like “Fantastic Voyage” convinced us that tiny machines would one day cruise through the human body, fixing problems from the inside. In reality, that future stayed frustratingly out of reach.
The reason was not a lack of ambition. It was physics.
Now, a breakthrough from researchers at the University of Pennsylvania and the University of Michigan has changed the equation. The teams have built the smallest fully programmable autonomous robots ever created, and they can swim.
Sign up for my FREE CyberGuy Report
Get my best tech tips, urgent security alerts and exclusive deals delivered straight to your inbox. Plus, you’ll get instant access to my Ultimate Scam Survival Guide – free when you join my CYBERGUY.COM newsletter.
A new way to swim without moving parts
Seen on a fingertip, this tiny swimming robot is smaller than a grain of salt yet fully autonomous. (Kurt “CyberGuy” Knutsson)
ROBOTS LEARN 1,000 TASKS IN ONE DAY FROM A SINGLE DEMO
The robots measure about 200 by 300 by 50 micrometers. That is smaller than a grain of salt and close to the size of a single-celled organism. They do not have legs or propellers. Instead, they use electrokinetics. Each robot generates a small electrical field that pulls charged ions in the surrounding fluid. Those ions drag water molecules with them, effectively creating a flowing river around the robot. The result is motion without moving parts. That makes the robots extremely durable and surprisingly easy to handle, even with delicate lab tools.
A brain powered by almost nothing
Each robot runs on tiny solar cells that generate just 75 nanowatts of power. That is more than 100,000 times less than a smartwatch. To make this work, engineers redesigned everything. They built ultra-low voltage circuits and created a custom instruction set that compresses complex behavior into just a few hundred bits of memory. Despite the limits, each robot can sense its environment, store data and decide how to move next.
How these robots communicate with a dance
The robots cannot carry antennas, so the team borrowed a trick from nature. Each robot performs a tiny wiggle pattern to report information like temperature. The motion follows a precise encoding scheme that researchers can decode by watching through a microscope. The idea closely mirrors how bees communicate through movement. Programming works the other way. Researchers flash light signals that the robots read as instructions. A built-in passcode prevents random light from interfering with their memory.
What these tiny robots can do today
In current tests, the robots demonstrate thermotaxis. They sense heat and autonomously swim toward warmer areas. That behavior hints at future uses like tracking inflammation, locating disease markers or delivering drugs with extreme precision. Light can already power robots near the skin. For deeper environments, the researchers are exploring ultrasound as a future energy source.
PRIVATE AUTONOMOUS PODS COULD REDEFINE RIDE-SHARING
Tiny robots move by creating electric fields that pull surrounding fluid, allowing them to swim without propellers or moving parts. (iStock)
Cheap enough to use by the thousands
Because these robots are made with standard semiconductor manufacturing, they can be produced in large numbers. More than 100 robots fit on a single chip, and manufacturing yields already exceed 50%. In mass production, the estimated cost could drop below one cent per robot. At that price, disposable robot swarms become realistic rather than theoretical.
What this means to you
This technology is not about flashy gadgets. It is about scale. Robots this small could one day monitor health at the cellular level, build materials from the bottom up or explore environments too delicate for larger machines. While medical use is still years away, this breakthrough shows that true autonomy at the microscale is finally possible.
Take my quiz: How safe is your online security?
Think your devices and data are truly protected? Take this quick quiz to see where your digital habits stand. From passwords to Wi-Fi settings, you’ll get a personalized breakdown of what you’re doing right and what needs improvement. Take my Quiz here: Cyberguy.com.
Kurt’s key takeaways
For nearly 50 years, microscopic robots felt like a promise science could never quite keep. This research, published in Science Robotics, changes that narrative. By embracing the strange physics of the microscale instead of fighting it, engineers unlocked an entirely new class of machines. This is only the first chapter, but it is a big one. Once sensing, movement and decision-making fit into something almost invisible, the future of robotics looks very different.
If tiny robots could swim through your body one day, would you trust them to monitor your health or deliver treatment? Let us know by writing to us at Cyberguy.com.
Light-based commands trigger precise movements as microscopic robots receive instructions, change direction and move independently. (iStock)
CLICK HERE TO DOWNLOAD THE FOX NEWS APP
Sign up for my FREE CyberGuy Report
Get my best tech tips, urgent security alerts and exclusive deals delivered straight to your inbox. Plus, you’ll get instant access to my Ultimate Scam Survival Guide – free when you join my CYBERGUY.COM newsletter.
Copyright 2026 CyberGuy.com. All rights reserved.
Technology
The future of local TV news has taken a Trumpian turn
A long time ago, in 2004, the Federal Communications Commission laid down a rule designed to prevent a monopoly: No one company could broadcast to more than 39 percent of all the TV households in the United States. But then Donald Trump returned to the White House in 2025. Brendan Carr became FCC chairman and immediately kicked off a deregulatory initiative called “Delete, Delete, Delete,” in which Carr vowed to get rid of “every rule, regulation, or guidance document” that placed “unnecessary regulatory burdens” on companies. And within months, Nexstar, which already owned over 200 stations nationwide and had hit its ownership cap, announced that it had entered an agreement to purchase its rival, Tegna, for an estimated $6.2 billion — something that could only happen, however, if Carr agreed to change the FCC’s rules.
If you ask Nexstar why it’s pursuing a merger that would give it control of over 80 percent of the market, it’d point to Big Tech as the culprit. As advertisers take their money to Netflix, YouTube, and other digital streamers, linear television — the local television news, the broadcast affiliates, the basic cable networks — has suffered, forcing them to consolidate and shut down newsrooms. In that sense, Nexstar argued, the merger would help it compete for ad revenue with the streaming services, thereby building more robust local journalism. However, the merger’s opponents believe that this is a basic violation of antitrust laws and principles — not to mention the danger of letting one company have editorial control over the vast majority of America’s local television newsrooms.
But the second Trump administration handles regulatory hurdles a little differently than others, and companies have found that it’s faster to get what they want if they bypass the agencies and talk (read: suck up) to Trump directly. And when Nexstar did so publicly, it confirmed its opponents’ fears about political influence. Last September, in the fraught weeks after the fatal shooting of Charlie Kirk, Nexstar announced it would no longer broadcast Jimmy Kimmel Live! — a response to Carr’s claim that the FCC could revoke the broadcast licenses of TV stations that aired the comedian’s comments related to Kirk. It briefly led to ABC suspending Kimmel’s show, though ABC and Nexstar soon reversed their decision after a massive nationwide backlash and an ABC boycott.
However, Nexstar’s loyalty to Trump himself was not enough to win over his most powerful MAGA supporters. Newsmax, a cable news network with a deeply pro-Trump bent, and its CEO, longtime Trump donor and outside adviser Chris Ruddy, filed a lawsuit objecting to the merger, claiming that Nexstar’s anticompetitive behavior would force channels like his off the air with steeper carriage fees. He specifically accused Nexstar of jacking up the fees for stations to carry Newsmax, while offering its similar network, NewsNation, for much cheaper.
The Nexstar-Tegna MAGA makeover then took a more subtle turn. NewsNation hired the pro-Trump Fox News commentator Katie Pavlich and gave her her own primetime show. (The network had already hired a slew of former Fox journalists as well.) Around this time, a political group called Keep News Local began airing ads in DC that seemed to directly address Trump, praising him for having “defeated the fake news monopolies before through independent voices and local news” and claiming that the Nexstar-Tegna merger was “crucial for MAGA to survive.” (A little self-contradictory and mildly illogical, but it’s the kind of stuff that Trump likes to hear.) When I last spoke to Ruddy in February, I asked if he’d worried that the dark money going into Keep News Local would sway Trump, and he chose his words carefully: “I think at the end of the day, Trump makes up his own mind. I’m not sure he’s going to be influenced by an ad campaign.”
For months, no one could accurately predict if Trump would override Carr’s wishes and bless the deal, as he’s often done for other companies facing regulatory scrutiny. Trump’s Truth Social posts about the merger have been a good indicator of how precarious the merger has been and who’s been able to influence him at any given moment: Last November, he blasted the deal as an “EXPANSION OF THE FAKE NEWS NETWORKS,” but by February, he posted that the deal would “help knock out the Fake News because there will be more competition.”
Several current and former NewsNation employees told Status at the time that they feared that the parent company was steering NewsNation away from the centrist, “unbiased” reputation they’d long cultivated. “A lot of people within the network believe that the network has gone hard right to appeal to Trump and Brendan Carr,” one former employee told Status. Coincidentally, days before the deal was finalized, NewsNation began ramping up its explicitly pro-Trump content, tweeting a clip of CNN’s Kaitlan Collins being berated by White House press secretary Karoline Leavitt, along with the comment “Just going to leave this here.”
When Trump greenlit the merger in mid-March, but before the FCC’s three commissioners could vote on whether to waive the ownership cap, Nexstar and Tegna immediately announced a new complication: Tegna and Nexstar had already started merging. Tegna was no more and CEO Mike Steib had already sold $22.6 million of his company stock.
In response, eight state attorneys general and satellite TV operator DirectTV, which had already been planning to file separate federal antitrust suits against the merger, asked US District Judge Troy Nunley in Sacramento for an emergency restraining order that would prevent Nexstar from taking over Tegna’s assets. The order was granted on March 27th and on April 17, Nunley issued a formal injunction, ruling that Tegna must be operated as an independent financial entity, and Nexstar must take steps to ensure it remains separate from Tegna before further legal proceedings.
For now, Nunley has allowed the states and DirecTV to combine their cases, in which both argue that the merger was a clear violation of antitrust laws and would crush news competition.
Meanwhile, Republicans and Democrats in Congress are furious at Carr. On March 30th, Sens. Ted Cruz (R-TX) and Maria Cantwell (D-WA) sent the chairman a joint letter admonishing him for allowing his staff to waive the regulations to let the merger pass, instead of having the full commission of political appointees — one from the Biden administration — vote on it. “Under these circumstances,” they wrote, “any subsequent vote risks being largely procedural rather than a genuine exercise of commission responsibility.” They also pointed out that their hasty approval without the commission’s approval would now complicate the merger financially: “In a transaction of this scale, where integration proceeds quickly and unwinding becomes impractical, delay in judicial review can insulate the decision from meaningful challenge.” Notably, though they share similar ideological views on the media and deregulation, Cruz and Carr have frequently clashed over how to achieve their objectives. Cruz previously slammed Carr as a “mafioso,” for instance, for the way he’d used the FCC to silence Kimmel.
But even if it’s legally paused, the journalistic merger’s fallout has started to hit local news. NPR’s David Folkenfirk reported on Tuesday that Tegna journalists had already started receiving orders to stop broadcasting content from major broadcasters like ABC, CBS, and NBC — media outlets being targeted by Carr — and instead begin airing content from Nexstar’s NewsNation.
- Brendan Carr’s views on using the FCC to punish major broadcasters was outlined pretty extensively in the chapter he authored in Project 2025, an initiative led by the conservative Heritage Foundation on how to reform the federal bureaucracy to be more favorable to the American right.
- Exactly how much is local television losing to digital? According to industry publication NewscastStudio, in an investor call defending the purchase, Nexstar chairman Perry Sook cited a market research study from Borrell Associates, which found that “digital advertising in local markets exceeds $100 billion, compared to just $25 billion for local linear television advertising, with nearly two-thirds of digital ad dollars flowing to five major technology companies.”
- If you want to see exactly how much Keep Local News was trying to suck up to Trump, the ads are archived here.
- The Vergecast has a long-running segment called “Brendan Carr is a dummy.”
- The LA Times reported on last week’s preliminary hearings in front of Nunley, and how lawyers for Nexstar, the states, and DirecTV plan to argue their case.
- The Desk has insights from Kirk Varner, a former TV newsroom director, on how the case could go.
- Andrew Liptak covered Nexstar’s previous acquisition sprees for The Verge in 2018.
- Adi Robertson walks through exactly how the Kimmel suspension was an attack on free speech.
- Brendan Carr keeps trying to convince people that he’s not threatening to suspend broadcast licenses for reporting on unfavorable things like the Iran war, reports Lauren Feiner.
- The Vergecast has a long-running segment called “Brendan Carr is a dummy.”
Technology
Chinese robot breaks human world record in Beijing half-marathon
NEWYou can now listen to Fox News articles!
A Chinese-built humanoid robot beat the human half-marathon world record in Beijing on Sunday, marking a breakthrough moment in a high-stakes global race for technological dominance.
A robot developed by Chinese smartphone maker Honor completed the 21-kilometer (13-mile) race in 50 minutes and 26 seconds, beating the human record of about 57 minutes set by Uganda’s Jacob Kiplimo last month.
The performance marked a dramatic improvement from last year’s inaugural event, when the top robot finished in more than 2 hours and 40 minutes.
Dozens of humanoid robots competed alongside about 12,000 human runners, navigating a parallel course to avoid collisions.
CHINA’S COMPACT HUMANOID ROBOT SHOWS OFF BALANCE AND FLIPS
A robot crosses the finish line in the Beijing E-Town Half Marathon and Humanoid Robot Half-Marathon held in the outskirts of Beijing on April 19, 2026. (Andy Wong/AP)
Nearly half of the robots ran using autonomous navigation, while others relied on remote control, organizers said.
Despite the breakthrough, the race still saw glitches, with some robots stumbling at the start or veering into barriers.
Engineers said the winning robot was designed to mimic elite athletes, featuring long legs of about 37 inches and advanced cooling systems to sustain performance.
US TARGETS CHINESE ROBOTS OVER SECURITY FEARS
“Looking ahead, some of these technologies might be transferred to other areas,” said Du Xiaodi, an engineer with the Honor team. “For example, structural reliability and liquid-cooling technology could be applied in future industrial scenarios.”
Team members celebrate next to the winning Honor Lightning humanoid robot during a medal ceremony after the second Beijing E-Town Half Marathon and Humanoid Robot Half Marathon in Beijing, China, on April 19, 2026. (Maxim Shemetov/Reuters)
Spectators reacted with a mix of amazement and unease at the machines’ rapid progress.
“It’s the first time robots have surpassed humans, and that’s something I never imagined,” Sun Zhigang, who attended the event with his son, told The Associated Press.
HUMANOID ROBOTS HIT MASS PRODUCTION IN CHINA
“The robots’ speed far exceeds that of humans,” spectator Wang Wen told the outlet. “This may signal the arrival of sort of a new era.”
A robot starts alongside human runners at the Beijing E-Town Half Marathon and Humanoid Half Marathon on the outskirts of Beijing on April 19, 2026. (Ng Han Guan/AP)
Experts say the race highlights China’s accelerating push to dominate robotics and artificial intelligence, even as widespread commercial use of humanoid robots remains limited, according to Reuters. The experts said Chinese robotics firms are still working to develop the AI software needed for humanoids to match the efficiency of human factory workers.
Runners take pictures of a humanoid robot during the second Beijing E-Town Half Marathon and Humanoid Robot Half Marathon in Beijing on April 19, 2026. (Haruna Furuhashi/Pool Photo via AP)
“The future will definitely be an AI era,” engineering student Chu Tianqi told Reuters. “If people don’t know how to use AI now … they will definitely become obsolete.”
CLICK HERE TO DOWNLOAD THE FOX NEWS APP
The competition underscores a broader technological race between China and the United States, as Beijing invests heavily in advanced robotics as part of its long-term economic strategy.
The Associated Press and Reuters contributed to this report.
Technology
The RAM shortage could last years
According to Nikkei Asia, even as suppliers ramp up DRAM production, manufacturers are only expected to meet 60 percent of demand by the end of 2027. SK Group chairman has even said that shortages could last until 2030.
The world’s largest memory makers — Samsung, SK Hynix, and Micron — are all working to add new fabrication capacity, but almost none of it will be online until at least 2027, if not 2028. SK opened a fab in Cheongju in February, but that is the only increase in production among the three for 2026.
Nikkei says that production would need to increase by 12 percent a year in 2026 and 2027 to meet demand. But according to Counterpoint Research, an increase of only 7.5 percent is planned.
The new facilities will primarily focus on producing high-bandwidth memory (HBM), which is used in AI data centers. With the companies already prioritizing HBM over general-purpose DRAM used in computers and phones, it’s not clear how much these new fabs will help alleviate the price crunch facing consumer electronics. Everything from phones and laptops, to VR headsets and gaming handhelds have seen price increases due to the RAM shortage.
-
World10 minutes agoSchools, shops shut in northern Israel to protest the Lebanon ceasefire
-
News40 minutes agoCommunities launch cleanup after severe weather and tornadoes churn across Midwest
-
Detroit, MI3 hours agoGame 21: Tigers at Red Sox, Garrett Crochet battles both Detroit and the weather
-
San Francisco, CA3 hours agoWhy do gray whales keep dying in San Francisco’s waters?
-
Dallas, TX3 hours agoDallas Mavericks Owners Might Be Making Big Mistake in Search for New GM
-
Miami, FL3 hours agoDefense dominates, Mensah flashes in Miami’s spring game – The Miami Hurricane
-
Boston, MA3 hours ago
A crowd scientist is helping the Boston Marathon manage a growing field of 30,000-plus runners
-
Denver, CO3 hours agoDenver Nuggets Altitude broadcasts now being offered in Spanish for first time ever