The Moral Argument - I'm a Brainin of a Vat

In the absence of defeaters, i'm perfectly rational ad perfectly justified in thinking that this is a fact about the world. So it's like my belief in the external world. Yes, i could be a brain in a vat being stimulated by a mad scientist to believe that i'm here, but i don't somebody. But it's possible that you are. The burden of proof is on you. Speculation is not proof. And i think that i just asked for those christian theiss who say that every single evil that looks gratuitous in the world, and most of them will grant that it does look gratuitous because of basically these unknown factors that we can't access.