We still live under the constraints of our world, and energy availablity is a big one.
It caused the double-dip recession in 2012: https://www.macrotrends.net/global-metrics/countries/euu/eur... and https://www.statista.com/statistics/621489/fluctuation-of-fi...
The actions of the ECB caused at least 10 years of misery for Europe. The 2008 crisis was inevitable, but the US bounced back from it within 2 years. While Europe is _still_ not fully recovered.
Bernanke deserves a lot of credit for that. He was brave enough to ignore the deficit hawks who were screaming about "inflation" and "debasing the dollar".