Hello community, i am wondering myself about thought i have a long time and i want to know what other traders think about this. I asking myself: How many people does it need, who know perfect money making strategies that are easy to trade, that the strategies stop to work ??? Example: A successfull trader, writes a book and give all his strategies to the public. Then logical they should stop working, or not ??? What do you think about this ??? If 30% of all market participants would do the same, would it change the markets ? Can it only work, if 10% do the right thing, and 90% do another thing ??? But, what if this strategies have worked for the last 50 years ? Thank you for your opinions.