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Cake day: July 11th, 2023

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  • While the entangled photons may be thought of as changing state simultaneously, in practice, it’s not possible to use this to convey information, as doing so would break causality, and effect would be able to happen before its cause. Remember that what is commonly termed ‘the speed of light’ is actually better expressed as ‘the speed of causality’. The most useful application of what this experiment performed would be in the area of quantum cryptography.