Quote from NoDoji:
A pure trend-follower can have a highly profitable system with a win rate of less than 40%, as long as the risk:reward ratio is 1:3 or better.
Win rate is defined as #wins/#trades
Therefore, you can only know your win rate after you place your trades.
As a result, you cannot know which risk:reward ratio to use, before you place your trades.
Win rate is a r. variable. Its value for certain time periods can range from 0% to 100%.
When your win rate hits 0%, you get a drawdown, a big one. If the time period this occurs lasts long enough, your say bye-bye to the markets.
The rest sound to me like attempts not to discourage newcomers enrlolled in a trading course.