I read it, and I think I broadly agree with it, but I don’t know why you think it’s a reason to treat physical distance differently to Everett branch distance, holding diversity constant. The only reason that you would want to treat them differently, I think, is if the Everett branch happy humans are very similar, whereas the physically separated happy humans are highly diverse. But, in that case, that’s an argument for superlinear local returns to happy humans, since it favors concentrating them so that it’s easier to make them as diverse as possible.
but I don’t know why you think it’s a reason to treat physical distance differently to Everett branch distance
I have a stronger intuition for “identical copy immortality” when the copies are separated spatially instead of across Everett branches (the latter also called quantum immortality). For example if you told me there are 2 identical copies of Earth spread across the galaxy and 1 of them will instantly disintegrate, I would be much less sad than if you told me that you’ll flip a quantum coin and disintegrate Earth if it comes up heads.
I’m not sure if this is actually a correct intuition, but I’m also not sure that it’s not, so I’m not willing to make assumptions that contradict it.
I tried to explain my intuitions/uncertainty about this in The Moral Status of Independent Identical Copies (it was linked earlier in this thread).
I read it, and I think I broadly agree with it, but I don’t know why you think it’s a reason to treat physical distance differently to Everett branch distance, holding diversity constant. The only reason that you would want to treat them differently, I think, is if the Everett branch happy humans are very similar, whereas the physically separated happy humans are highly diverse. But, in that case, that’s an argument for superlinear local returns to happy humans, since it favors concentrating them so that it’s easier to make them as diverse as possible.
I have a stronger intuition for “identical copy immortality” when the copies are separated spatially instead of across Everett branches (the latter also called quantum immortality). For example if you told me there are 2 identical copies of Earth spread across the galaxy and 1 of them will instantly disintegrate, I would be much less sad than if you told me that you’ll flip a quantum coin and disintegrate Earth if it comes up heads.
I’m not sure if this is actually a correct intuition, but I’m also not sure that it’s not, so I’m not willing to make assumptions that contradict it.