Krugman is right. Win rate is meaningless. Most pro trader's who manages $ millions have less than 50 percent win rate. They cut losses early and let profits run.
Unorthodox, counterintuitive, unconventional, anti-guru, maverick, with a firm belief in a high win rate, flexibility, and grabbing what the market gives me when it gives it to me. I can always get back in. And exiting when I realize I am wrong and look to go the opposite way doubled or tripled up.