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Tesla’s ‘Bioweapon Defense Mode’ is proving invaluable to owners affected by CA wildfires
When Elon Musk initially talked about the Model X’s “Bioweapon Defense Mode,” the company’s skeptics dismissed the feature as a simple gimmick. For owners of the company’s electric cars currently affected by the raging wildfires in CA, though, Bioweapon Defense Mode has become a welcome blessing, allowing them and their passengers to breathe clean air despite the worsening air quality outside.
California is currently facing its most destructive fires in the state’s history. As of Friday, the northern California city of Paradise has already been lost to the blaze. More than 6,700 structures have also burned to the ground in northern CA’s Camp Fire on Thursday and Friday. At least nine people have perished against the onslaught of expanding wildfire, and more than 250,000 people have been forced out of their homes as well. Despite authorities’ best efforts, Los Angeles fire officials noted on Friday afternoon that the blaze remains “zero contained.”
Reports from members of the Tesla community living in areas affected by the wildfires have noted that their vehicle’s Bioweapon Defense Mode has effectively maintained the air quality inside their cars. One such owner, Andrei Bulu, even posted a couple of pictures on social media showing the air readings from inside and outside his Model X as he was driving through the Bay Area, which is being affected by the fire in Paradise. As could be seen in the Model X owner’s post, the air quality readings improve dramatically when his electric SUV’s windows were up and Bioweapon Defense Mode was enabled.
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- [Credit: AndreiB/Twitter]
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- [Credit: AndreiB/Twitter]
Tesla’s Bioweapon Defense Mode allows occupants to breathe clean air. [Credit: AndreiB/Twitter]
Other Tesla owners driving in areas currently affected by the CA fires have shared similar experiences as well.
https://twitter.com/teslaamit519/status/1061056967609790464
Bioweapon Defense Mode incited a notable amount of lighthearted laughter from the audience when Elon Musk announced the feature for the Model X. During the vehicle’s unveiling, Musk candidly stated that the function is possible due to the Model X’s incredibly large HEPA filter, which is around ten times as large as those of a regular fossil fuel-powered car. Tesla noted that Bioweapon Defense Mode, which was later added on the Model S, is “100 times more effective than premium automotive filters, removing at least 99.97% of fine particulate matter and gaseous pollutants, as well as bacteria, viruses, pollen, and mold spores.”
In true Tesla fashion, the company’s skeptics were notably unimpressed with the feature, with many claiming that Bioweapon Defense Mode was but a marketing statement. Tesla later debunked these claims by holding a controlled test of a Model X inside a bubble contaminated with extreme levels of pollution (1,000 µg/m3 of PM2.5 vs. the EPA’s “good” air quality index limit of 12 µg/m3). Within two minutes, the Model X’s HEPA filtration system had scrubbed the air inside the all-electric SUV, and in the following minutes, even the air around the vehicle started getting cleaner.
If Tesla can help people in California wildfire, please let us know. Model S & X have hospital grade HEPA filters. Maybe helpful for transporting people.
— Elon Musk (@elonmusk) November 10, 2018
While Tesla’s electric car owners are able to breathe clean air despite the CA wildfires due to their vehicles’ Bioweapon Defense Mode, Elon Musk has stated that the company’s electric cars might prove helpful in moving people away from areas compromised by the blaze. An email Musk sent to employees reportedly even encouraged Tesla workers to provide assistance to the ongoing rescue efforts if they can, and not worry about compensation.
Over the years, Tesla has developed a reputation for helping out when it is able. Amidst the onslaught of this year’s hurricanes, Tesla provided temporary free unlimited Supercharging and a range upgrade to owners of Model S 40, 60, and 70 vehicles, enabling them to leave hurricane-affected areas. Elon Musk, for his part, also continues to provide some humanitarian aid as well. Just last month, it was revealed that Musk had been helping Flint, MI by giving the necessary funds to install water filtration systems to the district’s school buildings.
Elon Musk
Elon Musk and Tesla AI Director share insights after empty driver seat Robotaxi rides
The executives’ unoccupied tests hint at the rapid progress of Tesla’s unsupervised Robotaxi efforts.
Tesla CEO Elon Musk and AI Director Ashok Elluswamy celebrated Christmas Eve by sharing personal experiences with Robotaxi vehicles that had no safety monitor or occupant in the driver’s seat. Musk described the system’s “perfect driving” around Austin, while Elluswamy posted video from the back seat, calling it “an amazing experience.”
The executives’ unoccupied tests hint at the rapid progress of Tesla’s unsupervised Robotaxi efforts.
Elon and Ashok’s firsthand Robotaxi insights
Prior to Musk and the Tesla AI Director’s posts, sightings of unmanned Teslas navigating public roads were widely shared on social media. One such vehicle was spotted in Austin, Texas, which Elon Musk acknowleged by stating that “Testing is underway with no occupants in the car.”
Based on his Christmas Eve post, Musk seemed to have tested an unmanned Tesla himself. “A Tesla with no safety monitor in the car and me sitting in the passenger seat took me all around Austin on Sunday with perfect driving,” Musk wrote in his post.
Elluswamy responded with a 2-minute video showing himself in the rear of an unmanned Tesla. The video featured the vehicle’s empty front seats, as well as its smooth handling through real-world traffic. He captioned his video with the words, “It’s an amazing experience!”
Towards Unsupervised operations
During an xAI Hackathon earlier this month, Elon Musk mentioned that Tesla owed be removing Safety Monitors from its Robotaxis in Austin in just three weeks. “Unsupervised is pretty much solved at this point. So there will be Tesla Robotaxis operating in Austin with no one in them. Not even anyone in the passenger seat in about three weeks,” he said. Musk echoed similar estimates at the 2025 Annual Shareholder Meeting and the Q3 2025 earnings call.
Considering the insights that were posted Musk and Elluswamy, it does appear that Tesla is working hard towards operating its Robotaxis with no safety monitors. This is quite impressive considering that the service was launched just earlier this year.
Elon Musk
Starlink passes 9 million active customers just weeks after hitting 8 million
The milestone highlights the accelerating growth of Starlink, which has now been adding over 20,000 new users per day.
SpaceX’s Starlink satellite internet service has continued its rapid global expansion, surpassing 9 million active customers just weeks after crossing the 8 million mark.
The milestone highlights the accelerating growth of Starlink, which has now been adding over 20,000 new users per day.
9 million customers
In a post on X, SpaceX stated that Starlink now serves over 9 million active users across 155 countries, territories, and markets. The company reached 8 million customers in early November, meaning it added roughly 1 million subscribers in under seven weeks, or about 21,275 new users on average per day.
“Starlink is connecting more than 9M active customers with high-speed internet across 155 countries, territories, and many other markets,” Starlink wrote in a post on its official X account. SpaceX President Gwynne Shotwell also celebrated the milestone on X. “A huge thank you to all of our customers and congrats to the Starlink team for such an incredible product,” she wrote.
That growth rate reflects both rising demand for broadband in underserved regions and Starlink’s expanding satellite constellation, which now includes more than 9,000 low-Earth-orbit satellites designed to deliver high-speed, low-latency internet worldwide.
Starlink’s momentum
Starlink’s momentum has been building up. SpaceX reported 4.6 million Starlink customers in December 2024, followed by 7 million by August 2025, and 8 million customers in November. Independent data also suggests Starlink usage is rising sharply, with Cloudflare reporting that global web traffic from Starlink users more than doubled in 2025, as noted in an Insider report.
Starlink’s momentum is increasingly tied to SpaceX’s broader financial outlook. Elon Musk has said the satellite network is “by far” the company’s largest revenue driver, and reports suggest SpaceX may be positioning itself for an initial public offering as soon as next year, with valuations estimated as high as $1.5 trillion. Musk has also suggested in the past that Starlink could have its own IPO in the future.
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NVIDIA Director of Robotics: Tesla FSD v14 is the first AI to pass the “Physical Turing Test”
After testing FSD v14, Fan stated that his experience with FSD felt magical at first, but it soon started to feel like a routine.
NVIDIA Director of Robotics Jim Fan has praised Tesla’s Full Self-Driving (Supervised) v14 as the first AI to pass what he described as a “Physical Turing Test.”
After testing FSD v14, Fan stated that his experience with FSD felt magical at first, but it soon started to feel like a routine. And just like smartphones today, removing it now would “actively hurt.”
Jim Fan’s hands-on FSD v14 impressions
Fan, a leading researcher in embodied AI who is currently solving Physical AI at NVIDIA and spearheading the company’s Project GR00T initiative, noted that he actually was late to the Tesla game. He was, however, one of the first to try out FSD v14.
“I was very late to own a Tesla but among the earliest to try out FSD v14. It’s perhaps the first time I experience an AI that passes the Physical Turing Test: after a long day at work, you press a button, lay back, and couldn’t tell if a neural net or a human drove you home,” Fan wrote in a post on X.
Fan added: “Despite knowing exactly how robot learning works, I still find it magical watching the steering wheel turn by itself. First it feels surreal, next it becomes routine. Then, like the smartphone, taking it away actively hurts. This is how humanity gets rewired and glued to god-like technologies.”
The Physical Turing Test
The original Turing Test was conceived by Alan Turing in 1950, and it was aimed at determining if a machine could exhibit behavior that is equivalent to or indistinguishable from a human. By focusing on text-based conversations, the original Turing Test set a high bar for natural language processing and machine learning.
This test has been passed by today’s large language models. However, the capability to converse in a humanlike manner is a completely different challenge from performing real-world problem-solving or physical interactions. Thus, Fan introduced the Physical Turing Test, which challenges AI systems to demonstrate intelligence through physical actions.
Based on Fan’s comments, Tesla has demonstrated these intelligent physical actions with FSD v14. Elon Musk agreed with the NVIDIA executive, stating in a post on X that with FSD v14, “you can sense the sentience maturing.” Musk also praised Tesla AI, calling it the best “real-world AI” today.
Elon Musk and Tesla AI Director share insights after empty driver seat Robotaxi rides
Starlink passes 9 million active customers just weeks after hitting 8 million
