A second kind of reply is available, one that does not appeal to a special kind of grasping or an exotic type of proposition. Rather, it takes its cue from recent work on indexicals, according to which some propositions are perspectival, that is, true at some perspectives or indices and false at others. On this view, the proposition, I am in the hospital, which Jones believed at t when he was then in the hospital is true at the index of \(\langle\textrm{Jones}, t\rangle\) but false at many other indices, such as \(\langle\textrm{Smith}, t\rangle\) or \(\langle\textrm{Jones}, t + \textrm{one month}\rangle\). Anyone can believe the eternal truth that this perspectival proposition is true at \(\langle\)Jones, \(t\rangle\), but only Jones is able to believe the perspectival proposition at \(\langle\textrm{Jones}, t\rangle\). More generally, one can believe perspectival propositions only at the perspectives or indices one is at. Wierenga (2002: 155) suggests that if something like this is the correct account of first-person and present-time beliefs, then the definition of omniscience, (D1) above, should be replaced with