 Consider how a moral realist will approach the above debunking argument. It is intended to show us that realism is untenable, which of course means that this conclusion cannot just be assumed from the start. Yet if we begin the argument allowing that there may be independent moral truths, then why should we accept the initial claim about the pervasive influence of evolutionary forces on the content of our moral thinking in the first place? If there are independent moral truths, then we may plausibly have grasped many of them through autonomous exercises of our capacities for moral reflection, whereby we have come to recognize good reasons for thinking certain moral propositions to be true, by correctly grasping that certain features of actions are wrong-making, say.