A Quick Argument Against Nontheistic Moral Realism

A brief meditation on the eternal Moral Law written on our hearts

Nontheistic moral realists often claim that moral truths such as "it's wrong to kill for fun" is an objectively binding brute moral fact independent of human whims similar to 2 + 2 = 4.

But this positions falls apart quickly once we attempt to examine where these facts come from and why anyone would think we are strictly normatively bound to follow thes…