[cageface]

Uh, no. Aside from petroleum issues, it was a SUSTAINABLE CLOSED SYSTEM of trade among similarly-developed countries with similar standards. This could continue even if innovation had suddenly stopped in 1985.

It's only a closed system if you ignore the resources and cheap bottom-tier labor the first world extracted from the third world at a fraction of their potential value. The U.S. in particular was very active in this time period propping up puppet regimes around the third world in order to get cheap access to their raw materials and labor. The world has never been a closed system.