https://www.zerohedge.com/economics/incoming-commercial-real-estate-crisis-no-one-seems-prepared
It could be like the 2007-2008_financial_crisis all over again, but much worse.
https://www.investopedia.com/articles/economics/09/financial-crisis-review.asp
https://corporatefinanceinstitute.com/resources/economics/2008-2009-global-financial-crisis/