Comment by paganel

To be fair I’m not sure the economists know either, and some of them have even admitted to that.

I’m in bed and on my phone and too lazy to search for an exact link, but for a quick example I can give you the international government-bond market which the theory said that its price should have not ever fallen below zero. At some point in 2019 I think bonds worth $17 trillion (40% of the market if I’m not mistaken) were priced below that zero threshold.