[Tris]

It is meaningless, for example, to conclude that there is a 60% chance that there is a god. Either there is a god or there isn't - there's no 60% about it.

If you are going to be like that about it then:

Given a set of starting conditions any given system will develop in accordance with the laws of physics.

If you know the starting conditions you can predict the events arising therefrom, and hence calculate a new set of "starting conditions" for the system at time X, where X is arbitraraly large.

(I can't spell that arbi word, it appears)

Given that, due to CPT symmetry (ok, actually just the T part will do) X can be negative as well as positive, and indeed can be arbitar...damn can be as negative as you want it to be, if you know the starting conditions then talking about probability at all is meaningless. Everything either won't/hasn't happen(ed) or will/has happen(ed).

Of course, if you mean "given the limits of human knowledge and understanding there is a 60% chance that this will happen", that makes more sense, but then "given the limits of human knowledge and understanding there is a 60% chance god exists" is also sensible.

The upshot of this, for those who weren't following carefully, is you should place your palm on the screen, take out your credit cards, and send me your money.