> Sometime in the next 20 years, maybe sooner, there will be another '70s-style raw-material crunch: a disruption of oil supplies, a sharp run-up in agricultura

> Sometime in the next 20 years, maybe sooner, there will be another '70s-style raw-material crunch: a disruption of oil supplies, a sharp run-up in agricultural prices, or both. And suddenly people will remember that we are still living in the material world and that natural resources matter. Heh, well, he got this one right at least.