> You don't trust yourself writing critical code? Absolutely this. There have been many occasions where a piece of code was business critical, I made every eff

> You don't trust yourself writing critical code? Absolutely this. There have been many occasions where a piece of code was business critical, I made every effort to get it right, tested exhaustively, and it still failed. Once only dumb luck saved my employer from financial disaster. I am not competent to write code that is critical for life, and doubt I ever will be. Still I think I'm a good coder, which means I think that most coders are in the same boat. NASA has coders that are far better than I ever was or will be. Still, it's an act of great bravery or foolishness for anyone to blast off in an experimental spacecraft that depends on software for survival.