Sorry, but if we are to learn from history, there is no hiding place in the world. Barricading yourself in a bunker would be like building your own prison. How long could anyone really survive before emerging back? And if the super rich did survive, how long before they destroy themselves again? You would have an accelerated log(N) kind of self-destruction. First year of survival = 1%, 2nd time = 1% of 1% and so on...