>>slaw+(OP)
Sure. But that population estimate is only something like 25% higher than today's population; the per capita decline with improvements in technology could be much more dramatic than that. Plus, the remaining increase in population is likely to be biased towards poorer parts of the world where per capita consumption is already lower. Parts of the world that haven't had a fossil-fueled industrial revolution by now shouldn't ever be expected to - they'll be able to leap-frog over those technologies.