Even if only half the people loudly complaining about software performance and efficiency actually did the work of "understanding where the performance issues come from", things would be so much better right now
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Like, the vast vast majority of developers is basically just going off vibes and whatever assumptions/beliefs are considered the social default for their particular programming community, almost nobody has actually looked at what's going on or why
And that makes it all the more irritating when you're one of the few people who *has* actually looked into it, because you end up spending all your time and energy arguing with what essentially boils down to religious beliefs strongly held