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Kevin Bacon lost most of his fortune in one phone call. The man holding it had just been arrested for a $64.8 billion fraud, the largest in history. That night Bacon turned to his wife and said: "Let's have sex or something. It's free." In the video below, he tells GQ how that n

A 20-day moving average, shifted one bar, backtests at SHARPE 2.88. The returns it trades have zero predictability. Pure noise, straight out of a generator. Not overfitting. Not luck. One index off by one. Ruuj names this as failure mode number one in his roadmap. Nobody ever

Jane Street turns over $449 million a day per person. You cannot. And if you took your edge to that size, the edge would be gone before you got there. Here is the law that kills it, and the exponent nobody expects. I ran the math on the square root impact law. $50M a day of vo