>I think they are minimum 3 years away I vividly remember a conversation I had with an acquaintance who had recently taken an engineering position with an AV c

>I think they are minimum 3 years away I vividly remember a conversation I had with an acquaintance who had recently taken an engineering position with an AV company that occurred circa late 2018. He claimed that they were at most 1 year away. In fact, his exact words were something along the lines of "They're already here. It's just a few edge cases to work out and some regulatory hurdles to overcome." The reality is that the first 80% of the problem had been solved quickly and significant progress had been made at the time on the next 10%. The end was in sight. Unfortunately, that next 10% ended up taking as long as the first 80% to solve, and the final 10% will likely take decades if it's even possible.