It’s plausible to assign split-brain patients 2x moral weight because it’s plausible that split-brain patients contain two independent morally relevant seats of consciousness. (To be clear, I’m just claiming this is a plausible view; I’m not prepared to give an all-things-considered defense of the view.) I take it to be an empirical question how much of the corpus callosum needs to be severed to generate such a split. Exploring the answer to this empirical question might help us think about the phenomenal unity of creatures with less centralized brains than humans, such as cephalopods.
It’s plausible to assign split-brain patients 2x moral weight because it’s plausible that split-brain patients contain two independent morally relevant seats of consciousness. (To be clear, I’m just claiming this is a plausible view; I’m not prepared to give an all-things-considered defense of the view.) I take it to be an empirical question how much of the corpus callosum needs to be severed to generate such a split. Exploring the answer to this empirical question might help us think about the phenomenal unity of creatures with less centralized brains than humans, such as cephalopods.