I still think self driving was one of the worst places to start mass automation. It's a very high stakes scenario with human death on the line, and as such the law restricts innovation to near zero.

GPT-4 is already practical (I use it every day and it speeds up my workflow drastically in some cases), and most areas it'll assist in aren't regulated in any way. I don't see it making much of a dent in medical or law in the near term for similar reasons as self driving, but the rest ought to go way faster. It's not vaporware, shit works.