Which is it? Major changes or a bunch of small changes. I'm well aware of the small changes. I worked for an autonomous drone company back in 2008. It was really cool! In 2020 I started working for an autonomous car company. Again, amazing! None of it was a quick step function improvement. It was a lot of hard work. None of it was quite superhumanly smart either. LLMs are impressive pattern completion machines but they kinda suck at producing anything truly novel. Plus they are compulsive liars about that, lol!