Re: Do I Misunderstand The Double Slit Experiment
In the delayed choice quantum eraser experiments which are suppose to do something like what you describe in #4 the effect is not quite as dramatic as you describe it. At least according to my understanding when I last read about it. I believe a system of photon splitters is set up which allow photons to continue to the screen normally and produce duplicate photons which can then be directed elsewhere for study. I'm pretty fuzzy on the details, but when the erasure is done you don't actually see a change in the pattern on the screen. You use the duplicate photons with slit information erased to produce or deduce some kind of wavy subpattern of what you see on the screen. If you're really interested you should read up on it yourself. I think Wiki describes it in detail or at least links to something that does.
It's still spooky, just not as dramatic as in your OP #4.
PairTheBoard
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