We have all, at one point or other, made the mistake of asking a question like “does delimiting strings with single quotes yield better performance than using double quotes?”, only to be rebuffed by other people in the community who point out to us micro-optimization is often a pointless pursuit. This doesn’t stop the discussion from cropping up from time to time, though, especially when one of the world’s most sophisticated IT companies makes micro-optimization the subject of one of their official blog posts.