Quote from damonjanis:
I have found that it's easy to create a system of 50/50 results. If you randomly pick a time throughout the day and randomly pick a trade direction, and your stop loss size is the same as your target size, you will get 50/50 results.
Now, take that random system and tie it to the current trend (only trade during a strong trend and in the direction of the trend), and you will do better than 50/50 and achieve profitability. This is much less work than using a system with a lot of rules but in the end doesn't achieve results any better than a simple and slightly modified random system!