> don't waste time microptimising parts of your code which aren't bottlenecks anyway The irony is that doing so barely optimises anything. The optimisations ar

> don't waste time microptimising parts of your code which aren't bottlenecks anyway The irony is that doing so barely optimises anything. The optimisations aren't so much premature as... Not optimisations. I'm a big fan of Casey Muratori's video where he compares 3 things commonly called optimisation: - actual optimisation, which is detailed work involving profilers and evidence - fake optimisation, like using fast inverse square root in a web app because you heard it was faster - non-pessimization, where you just try to write straightforward code without introducing major performance regressions without good reason "Premature optimisation" is probably just "fake optimisation".