> So I still think the measure and optimize later is still true. This is a huge issue because measurement is difficult. There's also a lot of developers that a

> So I still think the measure and optimize later is still true. This is a huge issue because measurement is difficult. There's also a lot of developers that are bad at measuring and interpreting the results when they do measure. So you end up with people writing unoptimized or just plain slow code with // TODO: Add measurements. Then complicate the whole thing by simply accepting bad performance and scaling horizontally and paying through the nose.