[hbrn]

The risk of focusing on code and architecture too much is that it will never break. Not because it's very reliable: because you have no users.

Part of being a professional engineer is recognizing that your knowledge is always limited. No matter how much you think about these things, they will always break. Being too careful is as bad as being reckless.

Instead of trying to prevent failure, accept that it's inevitable and make sure you are fast at detecting and fixing.