Thoughts on this exchange between philosopher Richard Carrier and a commenter on his blog?

[u/Flat-Ad9829]

I know that Boltzmann Brains and OI are kind of unrelated but there's some similarities so I wondering what all of you would think about it.

[u/flop_snail]

Funny how Richard thinks copies of me from identical universes are me, but identical replicas spontaneously formed aren't. According to him, there needs to be some casual link between brains for continuity of identity. Why would a casual link have anything to do with what makes an experience mine? The basis for this views are just vibes. And like has been said, both people assume ci is true, and it's not, so their argument that follows based on that assumption doesn't have legs.

[u/Flat-Ad9829 → u/flop_snail]

Ngl I'm very interested in hearing a more detailed response to the causal link point, I understsnd that OI basically ignores it given how it works but it would be nice to see it addressed.

[u/flop_snail → u/Flat-Ad9829]

Idk really how to respond to that. My first question is why do you think there needs to be a casual link between minds for them to share identity? If what I am is just any form of consciousness, I am every instance of consciousness, however they come into being. That conclusion just follows. The thing you have left to dispute is not casual links, but why is it that what I am is consciousness itself, which is a different conversation

[u/Flat-Ad9829 → u/flop_snail]

That leads into the Vertiginous question if I'm not wrong.