Steven Pinker argues that our pessimism about today's world is profoundly wrong

Was 2017 really the "the worst ever," as some would have us believe? Cognitive psychologist and linguist Steven Pinker shares data that shows: actually, it was one of the best overall. At TED2018, Chris sat down with Steven to take a closer look at the data that suggest the world is improving, and to unpack why so many people find this idea so challenging. To find out more about TED, please visit TED.com. Find the transcript at:  go.ted.com/interviewpinker