Sorry for chiming in abruptly. :-P

>I don’t think a singleton would mind being simulated in general, because that only increases the number of copies of it that exist.

But that seems to apply only if the singleton believes that the “host universe” is similar to its own, right? Or if the singleton is so positive-leaning that it does not care much. But if you, Brian, became a singleton yourself, you would probably care about whether you are just governing some simulation or whether you control the base level of reality.

Personally, I find Alexander’s idea quite interesting, though maybe not particularly relevant right now. I’ll keep it in in the back of my mind for when I delve deeper into anthropic reasoning.