I just asked Opus 4.5 the same prompt here. Unlike Gemini 2 months ago, it got the two views right, but was much more clearly just anchoring on the logic of this EA Forum post.
Its central estimate is that it’s just about as bad to put a split-brain patient in an ice bath than a person with a working corpus callosum (given that the former does have 2 experience streams), as I’d say. But it does also give the “Fischer view” some weight, for an expected welfare multiple of “approximately 1.1-1.3x”.
I just asked Opus 4.5 the same prompt here. Unlike Gemini 2 months ago, it got the two views right, but was much more clearly just anchoring on the logic of this EA Forum post.
Its central estimate is that it’s just about as bad to put a split-brain patient in an ice bath than a person with a working corpus callosum (given that the former does have 2 experience streams), as I’d say. But it does also give the “Fischer view” some weight, for an expected welfare multiple of “approximately 1.1-1.3x”.