Let me prefix by saying that I'm solidly in some kind of AI middle ground. I think people who are fully outsourcing everything they do to AI are insane, and I think people who have planted their feet and are pretending AI is useless are also insane.

The way I think about it is that a lot of what we considered knowledge work isn't anymore. In "the before times", I would have considered it knowledge work to know how to dig into an unfamiliar code repo or long document and produce a useful summary of the information within, or identify which parts of a codebase are applicable to a given problem I'm trying to solve. AI turns semantic search up to 11; you can point it at an unfamiliar repo and say "what do I have to touch to make this work" and get a 90% accurate result. That's insane magic. I think if the bar is to consider it not a replacement for knowledge work as long as there is a human in the loop, then we're not there yet, but it keeps eating away at more and more of the basic pieces.