I get it -- lack of confidence yields doubt yields double-checking, verifying, testing, not taking things for granted, etc. It's a means to an end. It boils dow

I get it -- lack of confidence yields doubt yields double-checking, verifying, testing, not taking things for granted, etc. It's a means to an end. It boils down to effort and thoroughness. As a programmer, that's always been true over the course of time. In the end, confidence (to me) is about how one personally feels. IMHO, the great thing about programming is that it removes personal feelings from the equation.