What will save us?

Ace writes,

The last big innovation in American industry was the internet, and while this does provide certain improvements in informational efficiency, it has nothing like the game-changing effects of the rise of mass production, or the rise of the steam engine and then the gas-powered engine, or the rise of electrification, the explosion in agricultural productivity, and so on.

Those were major technological breakthroughs that provided immediate increases in wealth and then even more increases over a period of decades, as the technologies were further exploited.

The internet boom and potent, cheap computing power provided a small boost in the mid-nineties, and by 2010, its capacity to increase efficiency was all but fully exploited.

So, what will save us?