Any trading strategy works only if it has a statistical edge: positive expected returns over time. The speaker uses mechanical, rule-based procedures to remove guesswork and ensure each trade's expected profit exceeds its potential loss.
The art of trading is that anything can work, but it can only work if you have got a statistical edge, right? If that strategy, if that set of rules provides you with a statistical edge. Me personally, I have a set of mechanical rules because that sort of helps you stick to your edge a little bit easier, that I know when I follow, when that opportunity presents itself, it's going to result in me— sorry, ending in making more money than I am going to lose.
