| http://www.w3.org/ns/prov#value | - And that worked just fine for a few tens of thousands of years... until there were too many humans for the world supply of gold to adequately represent new wealth and value as they are created.If a more numerous race of aliens had evolved on this planet they might have assigned value to blades of grass, pebbles, or certain kinds of trees in a similar matter based on their own needs.Which is why the
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