We are "optimizing the slow ones" so to speak. Per-capita electricity consumption peaked in 1979 and has been going down ever since due to improvements in effi

We are "optimizing the slow ones" so to speak. Per-capita electricity consumption peaked in 1979 and has been going down ever since due to improvements in efficiency. The same is true of per-capita oil consumption. And if you see a "fast function" that's just obviously unnecessary, which is trivial to get rid of, then of course you do that. I do that all the time.