Wednesday, February 25, 2004

Graham is thinking about free-will

I would have posted this to his blog comments, but it was too long :


At the moment, it seems to me that if you want to escape from determinism, you have to turn this question on it's head.

The question is *why* we believe that the universe is nothing but deterministic laws? Because we find things very like laws when we look for them.

Alternatively you can go the way of my (and Margaret Thatcher's!) favourite philosopher : Popper, summed up by his slogan "All Clocks are Clouds".


He points out that we certainly know of *some* apparently law-like things which really are stochastic abstractions on top of a lower level, more disordered reality ... for example, gas laws.

Why should we assume the universe is Newtonian, made of things like F=ma, rather than made of things like PV/T = constant?

This isn't chaos theory as usually understood (it's much older.) But you can see how understanding the way a massively disorderd substrate can support emergent order, fits right in with it.

Popper got very excited by quantum indeterminacy too, but you don't need the indeterminacy to be at the quantum level to make this kind of argument. It just has to be *somewhere* down at the bottom.

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