I agree, there is a limit to sustainability, even if technology is likely to improve I don't see why we should take the risk of pushing the limits. If the popu

I agree, there is a limit to sustainability, even if technology is likely to improve I don't see why we should take the risk of pushing the limits. If the population decline happen to be a seemingly unsurmountable problem 100 years down the road, we'll have more than enough time to react before risking extinction.