Sure, it’s not necessary that a sufficiently advance AI has to work like the brain, but there has to be an intuition about why is not need it to at least create an utility maximizer.
Octopus’ brain(s) is nothing like that of mammals, and yet it is equally intelligent.
Thought I’d comment in brief. I very much enjoyed your post and I think it is mostly right on point. I agree that EA does not have a great epistemic hygiene, given what their aspirations are, and the veganism discussion is a case in point. (Other issues related to EA and CEA have been brought up lately in various posts, and are not worth rehashing here.)
As far as the quoted exchange with me, I agree that I have not stated a proper disclaimer, which was quite warranted, given the thrust of the post. My only intended point was that, while a lot of people do veganism wrong and some are not suited to it at all, an average person can be vegan without adverse health effects, as long as they eat varied and enriched plant-based diet and periodically check their vitamins/nutrients/minerals levels and make dietary adjustments as necessary. Some might find out that they are in the small minority for whom vegan diet is not feasible, and they would do well to focus on what works for them and contribute to EA in other ways. Again, I’m sorry this seems to have come across wrong.
Oh, and cat veganism is basically animal torture, those who want to wean cats off farmed animal food should focus on vat-grown meat for pet food etc.