Comment by throw-nocoiner

An interesting trivia:

Dividing the available arable land by global population leaves only a 100x100m plot per person - and that's before barns, silos, houses or warehouses. That's not a whole lot - as a city dweller, I'm confident I'd starve the first winter if not earlier

Modern agriculture is really impressive - farmers manage to feed around 10-20 people from such a plot