Bucky went dark in 1989.
If the trajectory had altered in 1970, the year he estimated humankind first had the intellectual capital to survive, we'd be in a different state today.
As it is, those ROI estimates from 2011 are being superceded by things like foil roll-to-roll-manufactured solar cells.
OTOH, his Synergetics describes the ground rules for nano-scale structures. People will be studying it whole decades from now.