Quote:
Originally Posted by ottischwenk
So far, so right - but you don't see single photons.
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I was going to make that same point. One water molecule is much like another but there is a huge perceptible difference in, say, a misting rain and a water jet cutter.
...and also, on the quantum level, I'm not so sure it's true that one photon is exactly the same as another...but again, the nature of individual photons is not at all the issue in perception of an image.