"A lot of technologies have been utilised in storing food or growing more of it. And we know that increased access to food increases population size. The reverse is also true, of course, so we should expect population to fall as harvests come under stress from the effects of climate change. […] At every possible fork in the path of the future, humans, generally, will always choose the route that gives them more convenience or more comfort. Only when none of the possible routes provide that option will humans start down the contraction and lower energy path."