I was thinking more about our conversation last night. I don't really have a good vocabulary to describe this all, but I try to make due in my explanation below. I think things can be boiled down to: dependency + distrust => possessiveness (or property) When there is a dependency upon a particular mode of an essential life activity (reproduction, energy (including food), shelter, etc), then it becomes less easy to adapt. And there has to be a certain amount of trust to let someone partake in a limited resource so that it is understood that the action will likely be reci_procated. So, dependency upon the mode of agriculture for providing energy (food) and a general distrust of some set of people (probably people outside a certain group (which can be a tribe, a community, a family or a "group of one" a.k.a. an individual)), then, yes, in that case, the concept of property will arise. But, overall, this is all a greyscale, not black-and-white, because there can be different levels of dependency and varying webs of trust. If the term "starkness" is used for this perception of something being black-and-white, then if there is a high level of starkness and less tolerance of ambiguity, then there can be the modern concept of property where something (or someone, sometimes) is completely "owned" by someone.