I understand all that and apply that day to day. But my thought here is more to think of the possibilities if the performance of most things was brought to its

I understand all that and apply that day to day. But my thought here is more to think of the possibilities if the performance of most things was brought to its absolute best. There’s a company that went from 30 servers to 2 just by rewriting from Ruby to Go (I can find the link later if interested). Even if they had kept Ruby and achieved a speed up, there was something just massively inefficient and they didn’t really care as they were in “we're shipping fast” mode and were making money. Which I understand perfectly but that’s a big waste of energy and resources. Not that I think that should be priority #1 but it’s staggering how much more efficient things can be than the “naive” approach.