> One objection I hear a lot is that LLMs are only good at greenfield projects. I'd push back hard on this. I've spent plenty of time trying to understand 3-year-old+ codebases where everyone who wrote it has left.

Where I am, 3 year old is greenfield, and old and large is 20 years old and has 8million lines of nasty c++. I’ll have to wait a bit more I think …