Excellent take on FSD (Full Self-Driving as marketed by Tesla, which of course is neither full or self-driving):

"one issue with reaction times, dulled perception, and loss of skill is that in normal driving, you only really need to react to sudden crazy shit other drivers can do, but with “fsd”, in addition to that, you also need to react to sudden crazy shit your own car can do. with no “fsd”, you usually would employ defensive driving principles to keep yourself safer, but how do you do defensive driving with your own car as the source of danger?"

- dima1109 on Reddit

https://www.reddit.com/r/RealTesla/comments/wwzjf6/comment/ilpaxsi/