Ace >Demand destruction perhaps won't be that horrible.
The demand destruction already happening now in Zimbabwe and some other parts of Africa is certainly horrible. We in the rich world are insulated from horror.

The demand destruction already happening now in Zimbabwe

Is due to horrendous mismanagement by Mugabe, not the price of oil. Zimbabwe has been suffering like this since oil prices were $20/bbl in 2000, at which time it was in the middle of a ruinous war and just about to embark on an even more ruinous program of farm appropriations.

While all looks yellow to the jaundiced eye, not every problem in the world is due to peak oil, and one only looks silly asserting so. To learn more about the causes of Zimbabwe's problems, I'd suggest reading the brief overview at the CIA World Fact Book (link), or the slightly longer treatment on Wikipedia's Economy of Zimbabwe page (link).