Good self talk, Peter0302. Thanks for jumping further with this. You went a long way towards helping my understanding of wave collapse. As you say "We've got to look for something that physically occurs when the wavefunction "collapses" to figure out why that happens.
The issue surrounds...
So, dim lighting and human "awareness" aside...
Where in the "block diagram" of the detector is the wave function caused to collapse?
I don't know the schematic of the detectors that are used, but it is probably safe to assume that there is some sort of light sensitive element which then sends...
Photons Detector not yielding "which-path" info.
In Fabric Of The Cosmos, I am just getting through the part where Greene discusses a multi-path setup (7.5?) involving a series of beam splitters and downconverters, whereby photons striking two of four detectors will yield definitive...