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by throwaway2019V 2150 days ago
These are spot on - having fallen victim to all three.

I'll add that, for the tech minded, building is easy in comparison to validating. Just fire up the IDE, write code, and debug. Validating involves putting your idea (and by association, yourself) out there for the world to potentially ridicule... and then trying to convince people to open up their wallets to your idea. Not so easy.