Data going back to the Black Plague of the 14th century shows low rates have been the norm for ages.
A paper from the Bank of England disputes prominent economic theories such as “secular stagnation” that assert the low-rate low-growth environment is new.
The paper comes as some $11 trillion in global sovereign debt continues to carry negative yields, down from a high of some $17 trillion.
https://www.cnbc.com/2020/01/14/interes ... -stay.html
To which I respond...

Not a word acknowledging that until the First World War, pretty much the entire civilized world used gold and or silver for money. For the benefit of the authors of this paper... we don't anymore. The basic underlying rules of the game have changed. Conclusions based on data predating that change are dubious... at best.