I would like operating systems vendors to be way more ambitious. There is no reason for Apple's Finder/spotlight to be so slow, when a guy with an LLM makes an alternative that is 500X faster. There is just no excuse now. Sure, it'll be more complicated to do it right, with all the decades of baggage, but now you can expend 3-4 people on radically optimizing different subsystems and see if there are any quick wins.