Quant Mashup - The Refutation Supertrend, flipped to death: the most-taught indicator on the internet [The Refutation]If you learned to trade from YouTube, you probably learned the Supertrend. It topped our folklore hunt being the single most-taught beginner tool on the internet, complete with the green-line/red-line screenshots and the promise that the trend will tell you when to start riding the new trend. So we(...) We tested the 50/100 MA ribbon 55 different ways over five years [The Refutation]Move like the wind, be still as the mountain, the old strategists taught. The moving-average ribbon promises to tell you which moment you're in. The catch: it's built from the past, so the wind it reads has already blown. Stack a fan of moving averages on a chart and assign colours to(...) 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(...)