Bottom line: great asset inflations (although the term “inflation” remains foreign to Shiller!) are populated by “naturally occurring Ponzi schemes,” with the most extreme and blatant including Dutch tulips, Tokyo golf clubs, Iceland credits, and Bitcoins; the less extreme but much more economically important episodes in recent history include financial equities in 2003-6 or the FANMGs in 2015-18; and perhaps the biggest in this cycle could yet be private equity.