Here’s an interesting visual, stretching the imagination about just how much each person could produce from their own land. The original link here includes interesting comments, both incredulous and inspired, but I think this reader’s comment sums this kind of visual up nicely:

“Some people may mock this infographic but IMHO let’s not pick the figures to death and consider the principle which is to make people think about the possibilities and answer a very common question about how we can become more self-sufficient. No matter if you have 1000 acres or a balcony in the city, it’s how you use the space! If one tomato plant saves you $5 in tomatoes from the supermarket and gives you organic beautiful tomatoes then you’re a success and more self-sufficient than you otherwise would have been without growing anything.”