Future imperfect.

Just finished watching an American series called "Flashforward" - bit on the silly side, but its basic premise is that of predestination. That's to say that our future is already settled. So is it? Well there are two basic ideas about this - one is that we are simply acting out a script that has already been written by some Supreme Being for some ineffable purpose or other. The other rather more practical one is that what will happen in the next instant is a direct and inevitable result of what is happening now - cause and effect. And then what will happen in the instant following that is the direct and inevitable result of what will happen next, and so on and so on. So we are riding on a railway track as it were - we have to go where the rails take us. So when I think I'm making choices, am I really? Makes you think, doesn't it? Perhaps we'll come back to this later.