We often think of bias and prejudice as rooted in ignorance. But as psychologist Paul Bloom seeks to show, prejudice is often natural, rational … even moral. The key, says Bloom, is to understand how our own biases work — so we can take control when they go wrong.

By: Paul Bloom

This video is shared under a Creative Commons license (BY-NC-ND 4.0). Please visit Ted.com. This TED Talk originally appeared on TEDSalon NY2014 in January of 2014.