Peter Turchin, End times: elites, counter-elites, and the path of political disintegration, 2023.
Turchin is one of the founders of the new 'science' of cliodynamics, a discipline which coalesced in the 1990s, statistical juggling 'facts' from the past, stitched together from bare bones (literally) of archeology, climate, geopolitics, crimes, arrests/ executions, wine imports, lots and lots of numbers. There's probably even a case for kitchen sinks. Think: weather forecasting. My favourite historian, Arnold Toynbee, when asked by a critic what the secret of history was, answered: Just one damned thing after another. Well, it seems Turchin has finally trumped the great master.