You set the table to abolish the notion of property. It's hard to extrapolate what effects that would have on modern societies... it hasn't really been tried. I

You set the table to abolish the notion of property. It's hard to extrapolate what effects that would have on modern societies... it hasn't really been tried. I'm not saying it's an inherently bad idea, but the proponents of that kind of idea always seem to paint rosy visions based on extrapolations from inappropriate samples. Maybe you can say you don't have to fully abolish property. But it remains especially hard to predict what second order behaviors any particular implementation would bring about, and what steady state would result from them. Per your example, if the expected ruling of society would be that gp doesn't get to keep the rock because they don't "care" about it... well, maybe people in their position would suddenly find themselves caring about the rock very greatly. Not even cynically -- if the choice presented to you is "value or no value", the limbic system suddenly becomes very persuasive.