But yes, it works best if you are a genius who is likely to be right. But also, analysis paralysis hurts the non genius more, because the genius can make more progress, which is motivating, in the time that the non genius gives up and tries something different. For the non genius, though, discouragement is in the form "you can't do this", not "it's a bad idea in.l general".

Imagine saying something like this to a kid or a young adult: you will make him think he is unworthy and that "it's not for him", thus destroying any potential he has because of your closemindedness.