I agree that the limits maybe inconceivably high from here. But disagree they'll always grow. When populations are doubling you'll only at 50% before you're 1 d

I agree that the limits maybe inconceivably high from here. But disagree they'll always grow. When populations are doubling you'll only at 50% before you're 1 doubling away from collapse / exhaustion. >That means, at US levels of consumption, the ceiling on just using the sun for our energy needs is 23 trillion people. The earth's population is 7.6 billion now. Even taking Bartlett's estimate of population doubling every 40 years, that's over 400 years of growth. I think we're starting to see the that the current limiting factor is not the inputs on earth's energy balance, but on the outflows. If we do not reflect a good portion of that energy, but instead utilise it (w/ a good portion being converted to heat) we'll eventually cook ourselves.