 According to Waldron, entitlement to land is based upon the idea that such entitlement can be an integral part of people’s life plans and projects as individuals and as members of groups. Entitlements to land can be important for people being able to autonomously realize particular goods of their way of life. When circumstances change the entitlement might no longer be important in that sense or decrease in its normative significance. For example, the entitlement of original owners might weaken over time if they are separated from the land. Having been separated from the land, entitlement to the land might no longer be important for the original owners autonomously realizing their way of life. Thus, generally speaking, entitlements are sensitive to background circumstances and they are vulnerable to prescription. As Waldron argues, property entitlement is a set of claim rights, liberty rights and powers that are “circumstantially sensitive” (Waldron 1992b: 23; see also Lyons 1977 [1981: 370]).