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On a side note, if we live in a sufficiently large multiverse it may be that every possible state exists. The result is a super-determinism that looks like non-determinism within local areas.


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Well i would agree with some that say "no one really knows". The whole question about a totally deterministic universe has other connotations. However i will throw another answer here. i will use thermodynamic reasoning and a new look at randomness and meaninglessness (i had a blog post sometime ago about exactly this issue, the blog is closed but i will ...


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You are labouring under some misconceptions. Quantum mechanics is deterministic. It describes each system in terms of observables that evolve deterministically according to an equation of motion. However, these observables describe multiple versions of that object that can interact with one another in quantum interference phenomena. Objects interact with ...


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Since it is possible to build a macroscopic device whose state changes according to something that happens at the quantum level, the obvious answer is "Yes". By macroscopic determinism we usually mean that quantum effects are below a level that is measureable. Not that they don't exist. For example, quite large molecules such as fullerenes can show quantum ...


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If in the Stern-Gerlach experiment we prepare an ensemble of particles in a superposition of spin up and spin down with respect to the z-axis and you could predict in every instance if we would obtain either spin up or spin down with respect to this axis but still reproduce the statistics corresponding to that superposition, there would at first sight be no ...


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Some remarks: 1) Wavefunctions are not classical fields, and are not field operators. 2) Quantization transform classical fields in operators (so equations of movement, or equations of conservation of energy, are equations between operators). 3) Quantum Mechanics may be seen as Quantum Field Theory with zero spatial dimension. 4) Following the above ...



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