Quant Mashup - The Refutation Is RSI Overbought a Sell Signal? We Tested 70/30 [The Refutation]The short version The RSI 70/30 rule (above 70 = overbought, sell; below 30 = oversold, buy) is the most repeated pattern in trading. We measured what price actually does after the signal, across six timeframes and four assets, and ran the traded version through six market regimes. It has no edge:(...) MACD: The Indicator Is a Passenger [The Refutation]The short version We wrote down four predictions before running a single test. Then we ran 360 measurements, tuned 320 variants, and put three complete systems through regime cross-validation. All four predictions held. What is actually inside the most famous momentum indicator in trading is not(...)