I just copied this from the other thread if you do want to reply. Its not much different from what others have said other than the concrete example, boiling water.
quote:
I think the flaw in your theory has been pointed out but I'll tell you in another way.
The position everything is in now this instant is a result of the position everything was in in the last instant. There is nothing outside matter/energy/law to cause it to be any other way.
This is not true.
If you boil water, the molecules will follow a series of 'random walks' (googlable). Press rewind and let it boil again and the molecules will not be in all the same positions. There is an element of randomness that is not pre-determined.