What is sneaky is that 'normality' is like that too, if you consider that for a very large segment of humanity, the 'peak point' never occurs. Most folks don't get a high point, they just get a middle point. Call it a glass ceiling, call is class warfare, call it discrimination, call it plain damn fate, it doesn't matter-- 'Normal' is as good as it gets for millions of people all over the globe. And so there is (usually) nowhere but down from that point, either.