I think it got started as AI tools for things like cancer detection based purely on deep learning started to outperform tools where humans guide the models what to look for. The expectation became that eventually this will happen for LLM agents too if only we can add more horsepower. But it seems like we've hit a bit of a ceiling there. The latest releases from OpenAI and Meta were largely duds despite their size, still very far from anything you'd trust for anything important, and there's nothing left to add to their training corpus that isn't already there.

Of course a new breakthrough could happen any day and get through that ceiling. Or "common sense" may be something that's out of reach for a machine without life experience. Until that shakes out, I'd be reluctant to make any big bets on any AI-for-everything solutions.