A more whimsical - though very attractive - answer to the Big Question of locative consciousness is provided by the neat religion that Patrick and I invented last year. I guess you might classify it as a form of pantheism. The core idea is that there is only one 'pure ego' or subject of conscious experience - let's call him 'God'. God is sequentially reincarnated as every conscious being that ever lived (including future times). He lives one human life, dies, pauses in limbo for a while to "think deep thoughts" (as Paul Studmann would say!), and then is reborn as the next person. Of course, he loses all his memories and divine powers while human. But he regains them again after each death, and so spends his time in limbo reflecting upon his experiences, fitting the new things he's learnt into his general knowledge structures, and so forth.
For an interesting twist, we might stipulate that God lacks omniscience, instead beginning existence as a 'blank slate', and learning everything he knows from his human lives. I cannot imagine any other theological position which gives more value, dignity, and sheer importance to human lives. Can you?
It might even serve to make sense of Christianity. Having children inherit the blame for their ancestor's Original Sin might actually make sense if they are all the same person/ego. It would just be God punishing himself for his own shortcomings. A little odd still, for sure, but at least no longer grossly unjust. And Jesus? Well, he is the one time God decided to retain his divinity whilst incarnate. Sound good? And it would make more sense of the atonement of crucifixion, as God died for his own sins, and so that he himself might be forgiven. None of this 'whipping boy'-style injustice. There would be some theological costs too, admittedly. The notion of salvation no longer makes much sense, since there are no souls besides God in any case. But at least this allows you to avoid the argument from hell. So I encourage all Christians to convert to my denomination! (I personally would leave all of that out of my own religion, of course. I'm merely suggesting that the potential is there to make the core idea more compatible with Christianity, if you're really into that kinda thing.)
Another interesting implication of this view is that it gives the strongest possible answer to the Why Be Moral? question. Indeed, the Golden Rule takes on a whole new meaning: whatever you "do unto others" will be "done unto you" in your other lives! Utilitarianism is looking pretty good right now... and wouldn't it make those who put forward the "separateness of persons" objection look silly! (Though the rationality of my mocking them right now is questionable. Either the mockery is unjustified or else, if I'm right, then I'm really just mocking another incarnation of myself! Oh dear.)
Anyway, back to the main point: I was wanting to answer the question, why am 'I' the subject of Richard Chappell's conscious experiences, rather than someone else's? I gave my sensible answer in the previous post. But my whimsical theological answer is that there is no "rather" about it! I am the subject of all experiences. It just happens to be Richard Chappell's "turn" at the moment. I was you a few incarnations ago. (Alternatively: you will be me in a few reincarcations' time.) We are all the same one conscious ego. We are, each of us, God.