Pardon my French, but that's a bullsh*t question. In a hypothetical TEOTWAWKI scenario - off the scale of what we generally consider here - what you carry on your back doesn't really relate to your chances of long term survival. First, if I'm actually living out of my BOB for more than a few days, I can guarantee you I'm not a spoiled baby (and there's nothing high end about my preparedness supplies, fwiw). Second, if I'm faced with a scenario of living outside my BOB for a considerable time, I'm looking at alot of active scavenging for food, warmth, humanity. My first objective would be to collect everything and anything that I might eat or I might use or learn to use, and to find people with similar wants and a desire to live on. That's because the principle of the BOB is a restoration of civil order after a relatively short time, and a return of the flow of supplies of food etc. Civilization in other words. Some in this forum may be situated where they hope to grow crops to sustain themselves after such an event - I hope they're pretty well practiced at sustainable non-mechanical argriculture, and I wish them well (and just the right bit of rain, and very few marauders). You want to posit the end of civilization and wonder how we all might fare if we had a knapsack on our backs - it's a bullsh*t question. Regardless the state of our BOBs, 95% of the most prepared of us would be dead by the first winter, and its a crapshoot which of any of us here might defy those odds. It's a question for some other forum if you ask me.