HOWEVER, everybody still dies. Instead of dying at 35 from a lung infection, we die at 95 after 10 years of "living" in vegetable mode in a nursing home. Which is somehow better, I suppose...
My grandmother became 93 and lived at home all the time until her death, with complete mental clarity all the time.
Still, my fathers grandmother became 99(!) and that was without much modern medicine as she was born sometime in the mid 19th century. Peak oil is not an energy crisis. It is a liquid fuel crisis.