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If I were driving I'd definitely stop for the person in the road projection at https://youtu.be/1cSw4fXYqWI?t=85

LiDAR also isn't a silver bullet. Similar attacks are possible such as simply shining a bright light at the sensor overwhelming the sensor as well as more advanced attacks such as spoofing an adversarial signal.

I don't think it's attacks we need to worry about (there's even an XKCD about dropping rocks off of overpasses). The issue is that without good depth and velocity data (so probably LiDAR) there are lots of fairly common situations that an ML algorithm is likely to have trouble making sense of.

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