Tesla AI Day 2021 Event Recap

By Henry Farkas

Tesla AI day was last night and most of the event was an in-depth look at how Tesla is solving FSD and all the problems their solving and methods they're using. It definitely wasn't aimed at at the casual consumer.

Tesla AI Day 2021

There was some interesting video where they showed how the integration of all the cameras could predict where other traffic is located, and do it better than the combination of a few cameras combined with radar. We had to take their word for it that the camera integration did a better job. It did look that way on the computer views. Elon also pointed out that they use the Autopilot software not only to drive the car but to predict where the other cars on the road are likely to be in the next few seconds.

Later in the show, things got more interesting. They brought out a person dressed like a robot who danced around a bit. Elon came out again and showed a plan for a human-shaped Tesla robot. He admitted that the one that had danced around the stage wasn't the actual robot, but said that's what the Tesla robot would look like. The purpose of the robot is to perform chores that humans might find boring, repetitive, or dangerous.

Elon mentioned that Teslas are basically semi-sentient robots on wheels. He said that the human-shaped Tesla bot would come out next year. The robots will be friendly and will be able to navigate a world built for humans. They will be five feet eight inches tall and weigh 125 pounds, The face will be a computer screen. The hands will look like human hands and have five fingers. The Tesla bot will be able to walk at five miles/hour. That's faster than normal human walking speed, but most people can run faster than that.

Elon casually mentioned that most people could run away from it and most likely overpower it. He hoped it wouldn't be necessary, but, he said, “You never know.”

So then, he said that the robots would be able to shop for people, do chores around the house, and do repetitive jobs in the workplace. He admitted that having robots available to do jobs in the workplace would be a problem unless there was a universal basic income. That got a cheer from the audience. So I guess there were lots of Andrew Yang fans in the audience.

Then the question period started. The first question was asked of Musk, did he plan to make any of his software open-source? He said that creating it cost too much to just give it away, but he'd be willing to license it to other car companies.

Another interesting question was about whether audible cues would be incorporated into the FSD computer. Elon admitted that it would be important for a fully autonomous car to hear sirens from emergency vehicles, and he said that if someone was yelling at the car from the outside, a fully autonomous car should be able to understand what was being said. It'll be interesting how Tesla plans to tackle this problem for vehicles without external microphones.

Later, someone asked if FSD would work in other countries. Elon said that they were focusing first on the US, but the point was made that driving is very similar in other countries. Elon mentioned that they use training data from fifty countries and that the prime directive of FSD is, “Don't crash.” And that's true in every country. He says that right now, the car is pretty good at not crashing. Clearly, pretty good is not good enough since the drivers still need to pay attention, but the FSD is programmed to not crash into anything on the highway even if it's something it doesn't recognize like a UFO that just crashed on the highway.

I have to mention, here, an experience I had while FSD was engaged. I was driving along a road at night, and I saw a rock in the middle of the road. It was clear that the car didn't see it, and I had to quickly steer around it because it was too late to stop by the time the rock appeared in my headlights. Now I don't have the beta version of FSD, but it's clear Tesla still has some work to do here.

Later, someone asked what will happen with FSD once hardware 4 gets into production. Elon said that hardware 3 will be able to drive much better than any human driver once the software is finished. He says that hardware 4 will come out with the Cybertruck, and it will be able to drive better than hardware 3, but that doesn't mean that hardware 3 is unable to drive. He pointed out that not every regular human driver is the best driver on the road, but that doesn't mean that the regular driver isn't allowed to drive.

An amusing question got asked about whether the car could be spoofed by a picture. Elon suggested that he doesn't see many paintings of tunnels on rock walls as in Wiley E. Coyote cartoons. He mentioned that he has a T-shirt with a stop sign on the front. He says that if someone flashes a Tesla with such a T-shirt, the car will stop, but that Tesla will soon train edge cases like these and the car will learn what is a real stop sign versus a fake one.

Toward the end, someone asked whether we should worry that AI will have its own priorities that might be different from the priorities of the owners of the artificially intelligent robots. Elon said that right now, we're not anywhere near the kind of self-aware super-intelligent robots that people worry about. A car may be able to drive better than most humans. A robot may be able to do boring, repetitive or dangerous activities. That doesn't mean that cars and robots might rise up and rebel against humans. He's going to program his cars and his robots to be “Unequivocally good.”

Elon's final comment about cars was that eventually, cars will drive themselves just like elevators now drive themselves. You get in an elevator, press a button, and it takes you where you want to go. There aren't elevator operators anymore. Eventually, self-driving cars will be the norm. He says that there will still be a few gasoline cars and cars that need to be driven by a human being, just like now, there are still a few horses. But non-self-driving cars will be rare.

You can view the full Tesla AI Day event below:

Tesla Smoking While Supercharging? A Look at What's Actually Happening

By Karan Singh
Hot_Engineering3140 on Reddit

Winter is here, and temperatures are dropping, so one of the most common Tesla questions is about to resurface.

If you’ve landed here after frantically searching about “smoke” coming from your Tesla while Supercharging, take a deep breath—it’s completely normal.

Tesla Smoking While Charging

If you’re Supercharging in freezing weather—even with preconditioning—you might notice steam rising from your Tesla. But rest assured, your car isn’t smoking.

Your Tesla’s heat pump is hard at work warming both the cabin and battery to keep you comfortable and ensure optimal charging temperatures. Over time, condensation and ice build-up in the heat exchanger coils.

Why Does It Happen?

When you reach a Supercharger with your vehicle, the heat pump is still running hot, but without the cold air from driving to keep the heat exchanger coils cool, the ice and condensation quickly start to evaporate—creating what looks like smoke.

Since this typically happens near the front of the vehicle, where a car would traditionally have an engine, new vehicle owners can be startled by the discovery. However, rest assured that it’s just water vapor and it’s completely normal in cold weather.

In fact, this behavior can be experienced in any EV with a heat pump in cold climates. So, if you saw steam coming out of your vehicle and panicked, don’t worry—you’re not alone.

Now that you know what’s happening, go ahead and Supercharge with confidence.

Tesla Improves YouTube App With Smoother Playback

By Karan Singh
Not a Tesla App

Tesla made a lot of improvements in the 2024 Holiday Update, including more than 15 undocumented improvements that were included in the release. One of these was a stealthy performance improvement to the YouTube app.

Several people have mentioned they’ve seen improved performance on YouTube since this year’s Holiday Update - and there’s an interesting reason why.

YouTube Improvements

The improved YouTube performance in Tesla vehicles comes from an unexpected source—Tesla actually rolled back support for YouTube’s newer AV1 video encoding. Instead, vehicles now default to the older VP9 encoding standard.

While AV1 is highly efficient in terms of bandwidth, it requires considerably more processing power to decode and display videos. VP9, on the other hand, is less computationally demanding but uses more bandwidth to achieve the same video quality. This trade-off means smoother playback and better overall performance, even if it comes at the cost of slightly higher data usage.

Intel Inside

The VP9 video codec that the YouTube app is now using is much easier to decode, making it less taxing on the vehicle’s processor. This change is particularly beneficial for Tesla vehicles with Intel processors, which previously struggled to stream video at just 720p. When using AV1, these vehicles often experienced stuttering, sometimes forcing the YouTube app to automatically downgrade playback to 480p.

With this update, Intel-based Teslas should now be able to stream at 1080p smoothly. Streaming at 1440p is also possible, although occasional stutters still occur as the system keeps up with the decoding process.

Intel-based vehicles are the big winners with this change, but this appears to affect AMD Ryzen-based infotainment units as well, providing even smoother playback.

Chromium Web App

Tesla’s Theater apps aren’t native applications; instead, they run as chromeless web apps, leveraging the open-source browser built into Teslas known as Chromium (the open-source version of Chrome). Although this works quite well, there is a severe limitation - Chromium hardware acceleration isn’t supported on Linux, the operating system Tesla uses for their OS.

As a result, Tesla vehicles rely on software decoding instead of hardware decoding, which would otherwise handle video playback far more efficiently. A potential solution could be for Tesla to transition away from Chromium-based web apps in favor of a Mozilla Firefox-based browser, as Firefox does support hardware acceleration on Linux. This switch could also open the door to better streaming performance and the possibility of expanding Tesla’s in-car entertainment options.

However, Tesla’s choice of Chromium likely stems from Digital Rights Management (DRM) requirements for streaming services like Disney+ and Netflix, which rely on DRM-enabled playback. Firefox on Linux has had inconsistent support for DRM due to codec availability and variations in operating system versions.

We’re hopeful that Tesla will either adopt Firefox or develop a fully native application to improve video streaming, rather than continuing with the current web-based Tesla Theater. This shift could also pave the way for additional in-car applications built on Tesla’s native Linux environment—perhaps even reviving the long-rumored Tesla App Store.

Regardless, this update is a welcome improvement, particularly for YouTube, which remains one of the most widely used Theater Mode apps due to its accessibility, free content, and mix of short and long-form videos. It remains to be seen whether similar improvements are made for Netflix, Disney+, or other streaming platforms.

If you’ve noticed improved performance in Theater Mode, now you know why.

Latest Tesla Update

Confirmed by Elon

Take a look at features that Elon Musk has said will be coming soon.

More Tesla News

Tesla Videos

Latest Tesla Update

Confirmed by Elon

Take a look at features that Elon Musk has said will be coming soon.

Subscribe

Subscribe to our weekly newsletter