Because of technological limits, there is a certain amount of food that we can produce per acre. If we were to have intensive greenhouse agriculture, we could have much higher production. ↗
I know I can serve Hawaii and our country well in the U.S. Senate, know we can mount a solid statewide campaign, know we have a good chance of prevailing. ↗
Most people hugely underestimate the amount of 'empty space' we have in our country. Fly over the U.K., and you see that human settlement does not fill up the U.K. at all. It accounts for something of the order of 15 per cent of the landmass. ↗