Arbitrary knees in exponentially-growing metrics lined up with the introduction of fiat currency due to carefully chosen Y-axis scales by someone who makes money when you invest in Bitcoin.
(Some of those graphs -- especially the first one -- probably have interesting stories behind them, which may or may not relate to fiat currency. But all we get from that page is a Hayek quote structured to suggest he too would love Bitcoin so...)
https://wtfhappenedin1971.com