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How come quantum indeterminacy doesn't preclude information preservation?
by chrischen 11y ago
How come quantum indeterminacy doesn't preclude information preservation?
- andrepd 11y agoAll the information about the state of a particle is contained in its wavefunction. The uncertainty comes from the fact that the wavefunction can only tell you the probability of getting each value of a specific quantity when you make a measurement of that quantity, which doesn't mean you lack information about the state of the particle.
- solipsism 11y agowhich doesn't mean you lack information about the state of the particle. Yes it does. Quantum observations (sometimes called "collapse of the wave function") are not time symmetric. Once you've experienced one you can't derive where you were before it. Otherwise you wouldn't be using the word "probability". This inability to recover a previous state is, by definition, the loss of information.