The author predicts their trading system will achieve a win rate between 50% and 70%, explicitly stating it will not be as high as 80% or 90%.
"I know for a fact I'm not going to win 90% of the time, okay? Or even 80% of the time. I'm going to probably win 60% of the time or sometimes 70% of the times or sometimes even 50% of the time, it's okay because my winners are bigger than my losers. And I'm good with that."