It's possible. I dumped a lot of variables into Wolfram Alpha in a big equation and it came out with an answer in "m^2 per person" units. Also, it's not a prac

It's possible. I dumped a lot of variables into Wolfram Alpha in a big equation and it came out with an answer in "m^2 per person" units. Also, it's not a practical minimum but a theoretical one, like supposing we had so many plants absorbing light that it's dark underneath them, etc. In reality, potatoes can do about 17m cals per acre per year, and a human needs nearly 1m per year. In short, Matt Damon definitely wasn't growing enough potatoes (in the film version at least).