>what has he got wrong?

For starters, Greta Thunberg doesn't seem to be the antichrist.

Can you name a prediction? Most of your claims in the prior paragraph are retroactive causal explanations of phenomena, "just so" stories per se. Most aspects of Thiel's apparent vision of the future that have come true did so through his direct involvement via money, power, and influence. I see no meaningful evidence of unusual predictive power demonstrated thus far by you or anything else I've heard about. I suppose you could take the line that having power and using it to impose your will on the world is prediction in a sense, but it's certainly an unusual usage of the word