Posted: Oct 28, 2011 11:35 am
Evolving wrote:...making an actual measurement on a particle forces it to interact with the measuring equipment...
That's what I always thought QM meant anyway - and not that there had never been a collapse of a wave function anywhere in the universe before humans started observing particles.
I would go further and ask - if you make the wavefunction sufficiently universal (i.e. to encompass the observed system and enough of the enivironmnent), then is it necessary to even talk about collapse of the wavefunction ?