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    How Our Reality May Be a Sum of All Possible Realities

    Richard Feynman’s path integral is both a powerful prediction machine and a philosophy about how the world is. But physicists are still struggling to figure out how to use it, and what it means. The post How Our Reality May Be a Sum of All Possible Realities first appeared on Quanta Magazine
    by Charlie Wood Feb 06, 2023 0 minutes

    The most powerful formula in physics starts with a slender S, the symbol for a sort of sum known as an integral. Further along comes a second S, representing a quantity known as action. Together, these twin S’s form the essence of an equation that is arguably the most effective diviner of the future yet devised. The oracular formula is known as the Feynman path integral. As far as physicists can...

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    Originally published in Quanta Abstractions.

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