Sometimes my wife and I like to send each other text messages as though they’re democratic fundraising messages, and I believe she has produced the jewel of the form.

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This is basically the approach that Feynman takes in his book QED. And in general you sum over all the possible paths that photons with magic clocks could take.

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Science fiction writer Arthur Clarke in 1964 making a very good stab at predicting our world today m.youtube.com/watch?v=YwEL... #space #ai #comunications #computers #satellites

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thephysicsjournal.substack.com/p/anatomy-of...

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This is fore-edge painting: a scene hidden in a book's gilded edge, invisible until you fan the pages just right. Here it meets Tolkien's Lord of the Rings.

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