ThomasT
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The assumption of determinism and the application of probabilities are independent considerations.SW VandeCarr said:What is actually happening when the experimenter heats the gas and observes a change in the Q/T relation (entropy increases)? Under D the whole experiment is a predetermined scenario with the actions of the experimenter included. The experimenter didn't decide to heat the gas or even set up the experiment. The experimenter had no choice. She or he is an actor following the deterministic script. Everything is correlated with everything else with measure one. There really is no cause and effect. There is only a the predetermined succession of states. Therefore you're going to have to give up the usual (strong) form of causality where we can perform experimental interventions to test causality (if you want D).
Causality is not defined in mathematics or logic. It's usually defined operationally where, given A is the necessary, sufficient and sole cause of B, if you remove A, then B cannot occur. Well under D we cannot remove A unless it was predetermined that p(B)=0. At best, we can have a weak causality where we observe a succession of states that are inevitable.
I wouldn't separate causality into strong and weak types. We observe invariant relationships, or predictable event chains, or, as you say, "a succession of states that are inevitable". Cause and effect are evident at the macroscopic scale.
Determinism is the assumption that there are fundamental dynamical rules governing the evolution of any physical state or spatial configuration. We already agreed that it can't be disproven.
The distinguishing characteristic of ueit's proposal isn't that it's deterministic. What sets it apart is that it involves an infinite field of nondiminishing strength centered on polarizer or other filtration/detection devices and/or device combinations and propagating info at c to emission devices thereby determining the time and type of emission, etc., etc. So far, it doesn't make much sense to me.
We already have a way of looking at these experiments which allows for an implicit, if not explicit, local causal view.
Anyway, his main question about arguments against the assumption of determinism has been answered, and I thought we agreed on this -- there aren't any good ones.
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