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Here is a follow-up video, testing version 10.69.3 in the narrow, twisty streets of Berkeley, California.
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And a u-turn on radar:
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So they are using chirp signal in the radar:
This is fine when the number of radar stations is small and they are sparsely placed. But in situation where the density of stations is high (think busy city street), how are they going to deal with inter-station interference?
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On 2022-11-03, we had a post here, “Andrej Karpathy on Artificial Intelligence, Tesla Self-Driving, Language Models, and Intelligence in the Universe”, a three and a half hour conversation between Lex Fridman and Andrej Karpathy, who ran the Autopilot Vision project at Tesla between 2015 and July, 2022.
Here is a seven minute clip on the rationale for removing radar and ultrasonic sensors as inputs for self-driving.
I found the most persuasive argument starting at 4:27 in the clip: that vision is necessary and sufficient for humans to drive, and adding other kinds of sensors (which humans do not have) is a distraction to solving the problem of driving as humans do it.
At the same time, I can certainly see the case for extending the visual range beyond that of humans: using sensors that can see into the near infrared would allow seeing through fog, and that might be an advantage (although possibly scary to passengers riding in a car that was confidently navigating through pea soup).
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The above video, at 1:17, ties nicely into the Twitter layoff discussion, “Elon throws away things that are non-essential”
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We, or at least most of us, learn to accept it on aircraft. Hopefully the self driving system doesn’t get distracted (like the AF 447 pilots) and forget that it’s most important job is to control the vehicle.
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