Quantum weirdness

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Now for the true quantum weirdness. Even if one single photon is emitted into the medium and that photon is not absorbed or reemitted the photon's wave equation describing where it could be is STILL affected by the prescience of the medium. When all the possible paths through the medium are added together the center of the probability of where we find the photon is different than how it would be in a vacuum.

Even if we split the photon so that it could go on two different paths and one goes through water and one does not the net is STILL affected by the presience of the water on the other path. It's important to note that the FRONT speed (the leading edge) of the probability "wave" is still the speed of light.

This is the Quantum Jewel Thief level of weirdness. The thought experiment for the Quantum Jewel is explained in the following book:

"Quantum: A Guide for the Perplexed" by Jim Al-Khalili


How do you 'explain' this? This looks like an entanglement-phenomen.
 

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