When are rates going back to under 3%? That was a flash in the pan phenomena, I highly doubt that would ever happen again absent some other cataclysmic event. The current rates are more toward the contemporary average.
This is what everyone said after the financial crisis. 3 years after rates moved up from 0% (~2018) - the 30-year mortgage rate hit an all-time low (~2021).
I'm not sure how you can be so confident they're never going lower this time. And I'm completely lost how you can be confident they won't be lower than they are now within a couple of years...
In every country in advanced world??