I guess I&#x27;d like the prospector to get reasonably compensated for the services, but think indefinite exclusive rights to be passed on for untold generations is excessive, and thus rent.<p>In the case of he farmer the cost&#x2F;value calculation is probably such that a 10-20 year contract would be enough for the investment to pay off.<p>So it seems I&#x27;m arguing that perpetua, inheritable, property rights can be excessive, and thus create rent