Rates Never Lower

Maybe some day, saved by zero
I'll be more together
Stretched by fewer thoughts that leave me
Chasing after my dreams disown me
Loaded with danger
--The Fixx

Short rates have never been this low for this long in human history.

Rates are not where they are because of natural, peaceful factors. Instead, they have been forced lower.

Force builds distortion and instability into the system. At some point that potential energy will turn kinetic.