Look, say what you want, but nearly everyone in the finance community (public equities, private equity, etc) knows this is coming. You're right, it's impossible to know when exactly, but there's hardly any doubt it's coming soonTM.
But everyone in the finance community has been saying that loudly since mid 2017 when we reached an 8 year bull market. As they say, economists have predicted 12 of the last 5 recessions.