Comment: Well that's certainly a level of challenge.

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In reply to comment: 1 acre won't cut it even for (see in situ)

Well that's certainly a level of challenge.

Every ecosystem, every soil grade has it's factor of humans/hectare as you imply. In deserts it can be INFINITE in other words it don't matter how much land you have if none of it will grow anything.

I think the assumption here is composting, building soil, tillage, vertical agriculture, hydroponics, humanure, permaculure, every-trick-in-the-book-culture. It's a really tall challenge BUT....

water. Got water? If you have water in a desert then all things are theoretically possible.

Most of those who think so actually don't and most of those who think sew actually rip.