Humans have always failed at predicting qualitative improvements like the internet. Most scifi is just quantitative improvements and knowledge of human nature.
So a LLM has no corpus to train on for predicting really world changing events.
Every single "prediction" is something easily recognizable in current HN threads. How can you call that a prediction?
Simple question: if you feed the "AI" the HN front from 2017, what "predictions" will it make? Besides Google canceling yet another product of course. Would they all be about crypto?