I'm not sure that's true. It just depends on what you're willing to accept in trade for total self-sufficiency. I imagine if you were willing to go without ele

I'm not sure that's true. It just depends on what you're willing to accept in trade for total self-sufficiency. I imagine if you were willing to go without electricity or anything not hand made, and were able to secure a moneyless existence out in the deep woods, you could probably be self sufficient. It wouldn't be pleasant, and it wouldn't be a life I'd choose, but you could do it.