At 11/1/09 06:12 AM, RubberTrucky wrote:
Computers who work randomly are based upon a mathematical algoritm, using simple (mathematic) picking methods. They don't make their decisions out of a conscious intention.
And what makes you think the brain is any different?
Undoubtedly, the random number generator in the brain is extremely sophisticated, but I doubt it's anywhere close to perfect.
Tell me then, what stimulation causes me to date that one girl, stay faithful to her and not date some other girl I met. What physics stimulus prevents me from going to the kitchen now and instead type this here? What stimulus makes me stand up now, jump in the air twice and dance around Russian style.
It's hard to imagine that the word I'm typing now in the discussion I'm participating in now are predetermined by the position of all the particles in the universe 20 minutes ago.
It's no one stimulus, but a complex interaction of an uncountable number of stimuli. Your choice of women is determined by genetics, nurture, interactions with other women over the years, and so on. Asking us to figure out what makes you like X or do Y is like asking the position of any given atom in 20 minutes time: pretty much impossible, but it doesn't mean there aren't physics behind it.
As for predetermination, physics doesn't imply that. The universe is inherently stochastic thanks to quantum mechanics. There is inherent uncertainty in everything.