Nope. 5% sounds about right ... IF we get rid of a lot of non-essential transportation.

Think of life as it was then, without jets, without the ubiquity of the automobile (in many ways, the current destruction of Detroit could turn into a "Good Thing"©™® if it leads to the creation of a sustainable alternative,) without the transportation of luxury goods until they become a staple (grapes from Chile, most supermarkets being stocked from California, most Wall*Marts being stocked from China, [but NOT most service centers being stocked from India. It costs NOTHING to send a photon across.])

Most of the features of the current economy have come into existence over the last 50 years.

Most of the features of the coming economy will come into existence over the next 50 years.

Its just up to us, who are living here and now, to insure that the trade-offs made are sustainable.

In the long run, it matters to our children.

Since we can't all be Rockefeller, they'll have to deal with whatever mess we leave for them.