It could wind down because the atmosphere-, land-, and water-based ecosystems that provide both tangible necessities and myriad unseen benefits become degraded. or maybe we ourselves will attempt to restrain the growth spiral by preemptively limiting resource consumption and curbing climatic and ecological disruption.

FORBES: Rationing As An Innovation Driver?

It is a labour intensive process requiring significant laboratory resource over a number of years, limiting drug companies' willingness to invest.

BBC: Bill gates

In the long run, the limiting factor will not be cost, but rather the challenge of integrating an intermittent solar resource into the power grid.

FORBES: Solar Grid Parity Comes to Spain