A recent article (can't say where) pointed out we (the US) had around 700 cars/1000 population. China is around 400/1000. And than there's India.

China alone has more 1000's of population than we do. India has more 1000's population than we do. Therefore, I see an accelerating curve of depletion. Forecast which focused on the West's usage of oil are no longer applicable.

Alternate fuels: Using corn as a fuel is unrealistic. Corn is food. The last thing I would want to see is competition for a commodity important as a food crop.

Fuel cells: Hydrogen it seems is not so easily obtained either. I understand its primary source is natural gas. So, once again competition is for a short supply commodity. Oh, yes. We've not even considered building infrastructure.

Well, dare I say I'm a "geezer". I harken back to .25/gal gas. From my perspective, not only is "cheap" oil gone, but other alternate possibilities don't look so hot either.

So, at my age driving a Prius with a pretty good pension, I would probably travel less. That is, not do cross continental trips so that I can save gas by riding my bike across this or that state.