> Engineers generally have a solid intuition for what will perform well I worked for about 15 years as a frontend developer. I've seen very little evidence of

> Engineers generally have a solid intuition for what will perform well I worked for about 15 years as a frontend developer. I've seen very little evidence of this being the case. I've seen a huge amount of developers (backend, frontend doesn't matter much) will do things that are really dumb e.g. repeated look of values that don't change often, not trying to minimise roundtrips.