Re: Economic downfall.
These videos make understanding of ‘what happened’ easier, but still a bit technical:
For a for more formal explanation:
How long? Maybe keep reading Krugman’s blog!
Economics and Politics - Paul Krugman Blog - NYTimes.com
Cuz he did predict dot-com bubble…
RECKONINGS; The Ponzi Paradigm - New York Times
and the housing crises