[maxerickson]

Energy will be cheaper in 10 years than it has ever been in history.

Progress is pretty likely to continue.

[baq]

Can the World Get Richer Forever?

http://physics.ucsd.edu/do-the-math/2015/03/bbc-questions-in...

[maxerickson]

So make a point. That I have optimism for my lifetime doesn't mean I'm blind to there being real actual physical limits.

OP is talking like grim meathook future is coming quick (linking food production to petroleum production). I was answering that.

[marcosdumay]

I dunno¹, but solar will probably make energy much cheaper in the coming decades.

1 - Of course, obviously I do know. The answer is just completely irrelevant to the discussion.

[rokosbasilisk]

wow fascinating read.

If global resources are finite, it would explain the drive to colonize space.

[philipkglass]

Global resources are finite. The resources of the solar system are finite. The visible universe is finite.

Finite is not another word for "meager."

Discussions of physical resource limits would be better if pessimistic prognosticators did not write as if finite-is-meager, and if optimistic prognosticators did not write as if plentiful-is-infinite.

[rokosbasilisk]

finite resources on earth can lead to meagar resources which stop infinite growth is what I took from that paper.

So we'd have to get resources from elsewhere like asteroid mining or space colonization.

[philipkglass]

Fundamental properties of nature, like the finite speed of light, preclude infinite growth. To maintain 2% annual growth in human energy consumption, in just a few thousand years we'd need to have built Dyson swarms around every star in our galaxy (and beyond). Faster-than-light travel becomes necessary to sustain that growth rate in less than 2600 years.

The BBC asked a bad question and got an obvious answer. (Maybe the badness and obviousness aren't apparent up front if you don't have a physical science background.)

Asking if fixed-percentage economic growth can continue forever is rather like asking if Moore's Law can continue forever. No, neither can continue forever. That doesn't mean that things get bad after the growth phase. Somehow both optimists and pessimists conflate "the end of growth" with "the end of prosperity." That's ridiculous, IMO. The median citizen is much better off in low-economic-growth (and negative population growth) Japan than in rapidly growing Bangladesh.

[rokosbasilisk]

Wow thats a good point about japan. Do you know why there is so much negativity about low growth there ?