hypnagogue
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graffix said:The word randomness still seems to have a lot of power here if I interpret correctly. It isn't that we do (crazy) random things or dream random dreams.. It, to me, is buried a lot deeper. This is my theory: Take the decision to either to go to McDonalds or Carl's Jr for lunch for example. The decision making is for the most part all environmental (your preference, your genies, what you've been eating, what parts of your brain are most active[which will seem random since it is built on past random decisions]). The choice can be calculated (using a computer) all the way down to the final answer (you're going to Carl's Jr because absolutely every variable imaginable points you there) as if you were in a sim game, and you're just an AI dude walking around in a simulated city. The difference between you and that AI in the sim game is that, before committing, the screen asks, Goto Carl's? ACCEPT (YES/NO). That's where it's a random decision, and it's always a 50/50 probability (after absolutely everything is said and done), sort of how quantum mechanics probabilities are always 50/50. Please distinguish that it's not 50/50 between McDonald's and Carl's, and it isn't that you will automatically choose McDonalds if you choose NO. That final decision could be what is INDEPENDENT from the system, and according to Many Worlds Interpretation, walks you into one of many possible worlds.
Even if decisions are random, this does not imply that they will always come down to a 50/50 split. If this were the case, then all that information about genes, environment, etc. would be completely irrelevant, and we would also never be able to predict any human behavior reliably at all. Consider, though, that every student in the world on every school day is faced with the choice: shall I attend school today or not? If decision making really were a 50/50 split, then only (roughly) half of the kids in the world would attend school on any given school day. This obviously isn't the case.
A given event can have a random outcome even if one outcome is more probable than another. Consider a coin that is weighted such that tails comes up 80% of the time. A flip of this coin is still random in the same sense that a flip of a fair coin is random, insofar as we can't predict with certainty what the outcome will be. More generally, if we say an event is random, we just mean that its outcome cannot be predicted with complete certainty-- this does not imply that each outcome is equally likely, however.