LLMs can get you 80-95% of the way

But the big question is "where will '80-95% of the way' get you?"

Do you grind-out the last 5-20% in a period that's disappointingly long compared to the initial step? Or do you another 80% complete thing on top, and another and another until the whole structure collapses?

The post is talking about what groups might go what directions, which seems fair.