Here's my 2 cents...
First, peak oil is real, just like agw, evolution, and all of that other sciency stuff. If you're a denier/cornucopian, please read up, because everyone from the IEA to the USGS and Total to BP and even the US and German military academies are in agreement. Pessimists point to the IEA documented conventional oil global peak in 2006, and extreme optimists like CERA put peak total oil out to the middle of this century. But no one- no one- thinks it will not happen.
In other words, it's here.
The best irony to me is the fact that PV cells are made from hydrocarbons. This is just one small example of why we should all beware the techno-triumphalist ruse that promises life (and GDP growth) will continue on just as it has just as soon as we find some new fairie dust the cars will all run on. Oil is that farie dust, and it's in twilight.
Just one more thing... don't forget that the drastic price spike of 2008 preceded the financial meltdown. Energy is a fundamental input to... everything.