My BOB is set up for a week or more of self-sufficiency (depending on how much food I toss into the top) but the tools I carry in it would enable me to make, build, forage, trap or snare whatever I would need to live for several months and probably a year or more. (even with our Wisconsin winters). Add the debris and detritus of our society after a pandemic or such and I'll get along quite comfortably for the rest of my life. I seriously doubt that someone who has made no preparations would last through the first month unless they happen to hook up with someone who has prepared.