"There's certainly a lot of things I don't understand. This light of yours, or whatever you like to call it, how does it decide that you are you and I am me?' 'That could be another illusion. Look, along one wall of our office we have one complete set of pigeon holes, all in their nice tidy sequence. Along another wall we have another set of pigeon holes. Two completely different sets. But there is only one light. It dances about in both sets of pigeon holes. Wherever it happens to be, there is the phenomenon of consciousness. One set of pigeon holes is what you call you, the other is what I call me. It would be possible to experience both and never know it. It would be possible to follow the little patch of light wherever it went. There could be only one consciousness, although there must certainly be more than one set of pigeon holes.' I found this a staggering idea. 'If you're right it would be possible to be a million people and never know it.'"