It struck me that during the Great Depression, it took about 5 years before the Government started considering injecting significant currency into the markets. In January of 2008, we were worried about inflation. It's taken less than 12 months for the US Government to start pumping liquidity into the market. Another interesting fact: It took about ten years after the Great Depression for the US Government to issue bonds that carried a negative interest rate. This time, it took less than 6 months, after the stock market nose-dived.
I believe with the "speed of information travel" being SO fast (and getting faster), that we are in "exponential times".
If we think that societies' "speed" will not create a significant energy demand surge, then we're kidding ourselves. The recession may last a few years, but soon - the economy will roar back. The investments we make (in renewable energy & energy-efficient technologies) now will pay significant dividends, later. However (=opinion alert=), if we do not invest now, the U.S. will become a third-world nation.