Yeah, optimization is hard for two reasons: - No the bottleneck is somewhere else. Even considering this rule, it's not where you thought it to be even after d

Yeah, optimization is hard for two reasons: - No the bottleneck is somewhere else. Even considering this rule, it's not where you thought it to be even after discarding your first two ideas. - There is no end to optimization. You can just find the problem, and then move the problem to another part of the code. It's less like capture the flag, and more like hot (or slow) potato. I guess you could be done with optimizations if you've built thoroughly optimized ASICs, because then you can blame electrons for wiggling too slow. But at that point I'd be impressed, a lot.