The meta-lesson here is that considering certain truths to be "absolute" is harmful. The greatest asset you can have as a programmer is flexibility. Understand

The meta-lesson here is that considering certain truths to be "absolute" is harmful. The greatest asset you can have as a programmer is flexibility. Understand the tradeoffs (e.g. tech debt vs over-engineering, thorough testing vs shipping quickly) and navigate them intelligently, rather than dogmatically pushing everything to one side of the tradeoff.