> I don't want to derail the conversation, but there are many pretty weird and diverse ideas in mathematics, including finitism and ultrafinitism (where people

> I don't want to derail the conversation, but there are many pretty weird and diverse ideas in mathematics, including finitism and ultrafinitism (where people just don't believe in some very large numbers), various subsets of peano axioms (where 1 != 0 may not be provable), or modular arithmetics (where 0 = 2 may be true). That's not really what I'm talking about. I'm imagining somebody who is so sure of their own mathematical reasoning skills that upon proving to themselves that the number one, in its simplest sense, was equal to the number zero, they started behaving as though this were the case. Perhaps going mad and (in good service of the analogy I'm making) killing themselves. > I'm not convinced I should listen the Things absolutely. The Things often tell me to hit someone annoying in the face, eat exclusively very caloric and fat food, and seek sexual gratification with every female of age around me. I don't think the Things are as smart as you give them the credit for. FWIW I think everything you're listing has some amount of instinctive conflict. Violence requires you to disable empathy. Chronic gluttony eventually requires you to turn off your ego and hate yourself. These are conflicts that (apologies for leaning heavily on this point, but it's kind of central) pretty much everybody, from a very young age, learns about and has to work through. The red flag is when you arrive through cold reasoning alone at a conclusion that makes no sense to any of your instincts, as evidenced by the fact that the average person off the street is completely bewildered by your conclusion. Like the idea that you should starve yourself for no other reason than that you have freed your spirit of all desire. > What about... [four moral case studies] Moral conflicts are still moral conflicts. Killing to avoid killing, violence to avoid violence. In the more difficult cases, perhaps even killing to avoid non-lethal violence (e.g. slavery), or even suicide to avoid extreme pain or the moral paralysis of your family members. Yet again, the sorts of decisions that people actually have to make with some regularity. The sorts of things we feel we need to teach children about, as they become adults. Suicide for purely ascetic reasons is not a moral conflict. From an unlearned perspective, it's just wasteful and bizarre. It seems to be the ethical equivalent of the mathematician going mad after incorrectly proving to himself that one apple was equivalent to zero apples.