More specifically, the post-WWII era is ending and now we're reverting to the mean of most of human history, which was oligarchic wealth and authoritarianism. It's sort of a tragic irony that the largest generation thus far saw the 1945-1975 period as "normal" and how things should be, because it was actually a highly anomalous point in history generated by a perfect storm of factors (the demographic peak from previous medical advances, multiple huge agrarian economies rapidly industrializing, a huge war that resulted in massive downward wealth redistribution) which will not repeat, and now it's coming to an end.