But underconfidence is a weaker problem, in that it only effects efficiency. Maybe you won't talk to that girl, get that raise or close that deal. But you will

But underconfidence is a weaker problem, in that it only effects efficiency. Maybe you won't talk to that girl, get that raise or close that deal. But you will not find yourself in a situation of no return. The trick would be to be overconfident in situations where failure doesn't matter (or is even beneficial) and be underconfident in all other matters. Unfortunately it's usually either one for all situations.