Thing is, there is no correct, or exclusive answer to this question. Following Gunz' logic, I would nominate the Tirtha Farm knife as a top choice for primitive living. Truth is that many of HI's excellent blades will serve admirably in this role. It just depends what tasks will be encountered most often, and what is the skill/knowledge level of the wielder. Both thin and thicker edge geometries have advantages and drawbacks, some of which could be offset with the addition of smaller, lighter knives used as adjuncts.