I only just come across this guy myself.

From what i understand his basic theory is that everyone is somewhat physic without knowing it and that these psychic abilities manifest themselves in what they type on the internet. So he mines data and interprets it to give a prediction. Quite a few of the predictions are very specific rather than being the normal vague nonsense you get from these kinds of people.

I in no way believe in it but its very interesting and im open to be persuaded if his predictions come true!