Some commenters have recently expressed disturbance at the thought of constantly splitting into billions of other people, as is the straightforward and UNAVOIDABLE prediction of quantum mechanics.

Please. Generating so many paragraphs here displaying this sort of smug assurance in your own conclusions about highly controversial topics is the exact opposite of "overcoming bias".

I have noticed Robin gently reminding you of this fact; perhaps it is time to pay some attention to him, if not your other critics. . .