[clarry]

> I am not so worried about premature optimization ; I am more worried about never optimization. And at that; i'm really worried about my (mostly younger) colleagues simply not caring because they believe it's a waste of time.

I'm simultaneously worried about both, because I've had to deal with poor architecture and unnecessarily convoluted & difficult-to-work-with code that was only justified by completely misguided optimization attempts (with no experimentation or profiling to back any of it up; and indeed, performance in practice was terrible!). At the same time, there's a constant stream of "oh no this convoluted mess has a bug in it" and "oh no we need a new feature, it can't take long?" tickets but never a ticket that says "profile and optimize the program because it's ridiculously slow, oh and refactor and undo the convoluted mess."