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Cake day: June 17th, 2023

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  • Might be cool for material sciences, but I want to emphazise this sentence:

    Importantly, these vortices don’t carry mass, energy or information, so they don’t violate Einstein’s rules, according to the researchers. “Phase singularities do not carry energy or information and thus can ‘move’ superluminally without breaking causality,”

    That phase veolcity and the speed of shadows can be faster than light is long established.