Most trading ideas in books,video and expensive classes simply do not work. They give you rules , indicators but never show you results on historical data. Backtesting: Running a set of rules on historical data is called _backtesting. Most indicator products, only give you indicators, they don't let you build system so you can test them because they don't work. The market is a zero sum game except for slippage and commission. Most indicators break even or worst , that why they make sure you canât backtest them. We will explain how to use technical analysis and both backtesting and walk forward testing to give you the best chance to be a successful trader.