Leo Steiner

Most investors look at a backtest and see a single, beautiful line moving from bottom-left to top-right—and assume this…

Anyone can "predict" the past. Give a teenager a laptop and a historical database, and within an hour they'll show you…

Most traders spend hundreds of hours tweaking parameters to squeeze out an extra 2% in their backtest—and call it…

Most traders spend weeks torturing historical data until it confesses to a profitable pattern—and call it a strategy.…

Most traders worship the "Black Box"—a complex algorithm they don't understand but trust to print money. The No-BS…

Most traders believe their portfolio is protected because it looks "diversified" on a spreadsheet. The No-BS Reality:…

Most traders apply the same rules regardless of what the market is doing—quiet accumulation, stress phase, or…

Every additional rule in a trading strategy is a new way for it to break. Complexity creates the illusion of control…

Traders who fine-tune their strategies until the backtest looks perfect are not optimizing. They are Curve-Fitting—and…

Most investors build their risk models on the Normal Distribution—and get destroyed by events they were told were…