The future is not fixed - and even if you've got a map that lays it out, who's to say that the map itself is immune to change? At that point, the question becomes "Are these things that MUST be? Or that MIGHT be?" And how do you tell the difference? How far does predestination go? And what happens when you ‘know’ something is going to happen, and it doesn’t? When the conditions are right it doesn’t take much to start a landslide – with catastrophic results. When people are involved, how small a pebble can start a landslide?