There was a surge of publicity a while back about the concept of Peak Oil (the point at which production begins declining as supply dries up).

Could it be that we’re coming to the point where people are going to start to realize that we’re heading for a similar precipice in the life of the individual automobile. These energy and resource intensive conveyances are just too inefficient for them to survive as our primary method of transportation for much longer. And making them electric doesn’t help that much. You still need roads and parking lots and garages and factories and repair shops for individual cars regardless of your fuel source.

What makes me wonder this now is that Orson Scott Card, who’s usually a bit of a wingnut has posted a piece called Life Without Cars (via).