"[O]rdinarily, and in most philosophical works, too, we take it that each individual experience is perfectly private to, or is enjoyed only by, just that very individual [...]. But, for both so many philosophers and so many philosophically innocent thinkers, that may be no more than an enormously widespread and deeply ingrained error. In point of fact, the real situation may be that each of these experientially similar individuals is similarly related to the very same single experience [...] with me and all my overlappers, it really may be that each of us is having—in the way of having quite peculiar to experiences—on and the same individual experience."