> why can we take drugs to bring us to normal, but we can't take drugs that make us better than normal? Consider caffeine, which is probably entirely responsib

> why can we take drugs to bring us to normal, but we can't take drugs that make us better than normal? Consider caffeine, which is probably entirely responsible by itself for a significant sliver of the world's total GDP. We just don't have a lot of drugs like that because it's hard to find stuff that's performance-enhancing without serious side effects.