I would like to know how much of American dematerialization is just exporting materialization to China. They make our stuff, we import it. Does that count as materials consumed by Americans? Note that they mention the great reversal starting in 1970. Nixon went to China in 1972.
Not only that, what about the end of infrastructure? Timber, steel, copper, asphalt, cement -- these are signs of a country investing in its infrastructure. Other than copper, if we saw a trillion dollar infrastructure package, our de-materialization would vanish in a heartbeat, and our carbon emissions would shoot WAY up.