Moral psychology of the fading affect bias

We argue that many of the benefits theorists have attributed to the ability to forget should instead be attributed to what psychologists call the fading affect bias, namely the tendency for the negative emotions associated with past events to fade more substantially than the positive emotions associated with those events. Our principal contention is that the disposition to display the fading affect bias is normatively good. Those who possess it tend to lead better lives and more effectively improve their societies. Secondarily, we note that if Julia Driver's moral theory is correct, then the disposition to display the fading affect bias is a moral virtue.