3 ms·
What about information? We know that it is conserved, so what is the corresponding symmetry?
by dist-epoch 2y ago
What about information? We know that it is conserved, so what is the corresponding symmetry?
- thrance 2y agoTime symmetry I think? Any computation has to be reversible in theory?
- layer8 2y agoSee https://physics.stackexchange.com/a/75009 https://physics.stackexchange.com/a/75009.
- mikhailfranco 2y agoWe don't know that information is conserved. It is postulated by the linear unitary time-reversible Schrodinger/Dirac equation, and assumed by the Many Worlds Interpretation, but contradicted by the non-linear probabilistic time-irreversible Measurement Axiom of conventional QM. Some people (esp. Penrose) postulate that gravity can collapse the wavefunction, and hence destroy information (esp. Black Holes). The Black Hole Information Paradox is a hotly contested current topic.