I suppose that whatever extent there's some commonality between our respective preparations, we and the 'survivalists' can learn from one another. I'm not even sure there's a clear distinction between the two camps, beyond an underlying difference in philosophy: we assume that things will ultimately get better, sooner rather than later; the survivalist assumes that things are going to get worse, probably sooner rather than later. As a consequence of this, we tend to focus on a much shorter time scale than does the survivalist, and self-sufficiency isn't a high priority - quite the opposite in fact. We're all about getting back home and/or returning to normality as quickly as possible.