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Cake day: October 22nd, 2024

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  • It again has to do with “where does light end up, given setup X”.

    Where we previously, in the refraction example, could refer to lookup tables. Now we can’t. There’s no predicting where a photon will end up.

    Einstein rejected this idea. The quote is “god does not play dice”.

    Yet experiments show: the photon decided one way, not the other. People so far havn’t been able to predict which way.




  • Exactly.

    I’ve always wondered. You know how light travels the fastest path possible. That’s why it refrects when changing from air to water.

    As we do textbook physics, we open our table, look up the respective refractive indices, use trigonometry, and can with reasonable accuracy predict where the beam ends up.

    How does the electron in the beam know the fastest path, as it’s moving through the different matters? It needs knowledge of matter it hasn’t encountered yet.