On 05/24/2013 04:29 PM, Sam Wormley wrote: > On 5/24/13 12:32 PM, David Bernier wrote: >> Suppose (for example) that wave function >> collapse in the "standard"/standard interpretation >> of Quantum Mechanics was governed by absolutely >> indetectable things. >> >> An indetectable thing is one that's even more discreet >> than neutrinos: it doesn't interact at all with the world. >> >> Does it make sense to postulate (as a thought experiment), >> the physical existence of indetectable things? >> >> David Bernier >> > > Wolfgang Pauli postulated around 1930 the existence of a neutrino > to explain how beta decay could conserve energy, momentum, and > angular momentum. > > Nothing had been detected and was to remain the case for several more > years. Did the idea make sense? Well yes, but it could have been > wrong. Later it turned out to be right. > >
On a related topic, one could ask whether fields (electric, magnetic or gravitational) were discovered, or rather invented ?