Comment by bluecalm

>>That's when a huge bubble will collapse.

Maybe there will be a "huge bubble" in the future but it doesn't look that huge right now. Forward P/E for S&P500 is about 22. That is 4.5% yearly return even if there is no growth beyond 2026. This is also real growth as earnings raise with inflation so nominal expected return is about 7% even if there is 0 growth beyond 2026.

Meanwhile risk-free rate (basically short term government bonds) is around 3.5% per year right now (nominal). That 7% is quite pessimistic as some "net growth" (growth - costs of generating it) is expected beyond 2026 and you can only get 3.5% "risk-free" I am not sure why people call current valuations crazy or what their expectations for "fair valuations" are. Equity risk premium seems to be still above 4%. Maybe that's on the low side but far away from bubble territory, let alone "a huge bubble".