[1][2] Similarly, in related work, Hare argues for a theory of perspectival realism in which other perspectives do exist, but the present perspective has a defining intrinsic property.
[3] In one example that Hare uses to illustrate his theory (starting on page 354 of the official version of his paper),[1] you learn that you are one of two people, named A and B, who have just been in a train crash; and that A is about to have incredibly painful surgery.
The point of the example is that you know everything relevant that there is to know about the objective world; all that is missing is your position in it, that is, whose experiences are present, A's or B's.
Hare points out that similar examples can be given to support theories like presentism in the philosophy of time.
[4][5] Giovanni Merlo has given a detailed comparison to his own closely related subjectivist theory.