Talk:Quantum Mechanics/Symmetry and Quantum Mechanics

This article confuses probability, the wave function and Bayesianism. The Copenhagen interpretation lends itself to such mixups. The proper way to go about expressing our ignorance of the state is to use density states, not state vectors. But in that case, the whole line of reasoning in the article falls apart!


 * But the conclusions are correct, which is what really matters Symmetry implies conservation, and vice versa.
 * The argument could easily be made rigorous, in any interpretation, but the machinery needed for full rigor would be inappropriate here, and selecting a interpretation other than the Copenhagen might be a little contentious for an introductry text.
 * What really matters here is making the connection between symmetry and conservation feel plausible, which this chapter does. Carandol