I read a fascinating story in the New York Times yesterday about a Chinese typewriter from the 1940s. Only one prototype was ever built - too intricate for mass production. A Stanford professor spent years searching for this lost machine, obsessed with finding it. Then a family digging through their basement discovered a mysterious 50-pound box. Inside: the typewriter. This reminds me of garbled circuits. Andrew Yao invented this cryptography forty years ago for medical record privacy. It sat unused in the "crypto junkyard" - mathematically beautiful but practically irrelevant. Until now. We're using it to reduce BitVM transaction costs from $15,000 to less than $100. Sometimes the most powerful innovations aren't new inventions.
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