Not sure what history you're suggesting I check? I've been following NLP for decades. Sure, neural nets have been around for many decades. Deep learning in this century. But the explosive success of what LLM's can do now came as a huge surprise. Transformers date to just 2017, and the idea that they would be this successful just with throwing gargantuan amounts of data and processing at them -- this was not a common viewpoint. So I stand by the main point of my original comment, except I did just now edit it to say 10 years ago rather than 5... the point is, it really did seem to come out of nowhere.