![What is consciousness?](https://ytimg.googleusercontent.com/vi/ir8XITVmeY4/hqdefault.jpg)
What is consciousness?
Understanding what consciousness is, why and how it evolved, is perhaps the greatest mystery known to science.
Click here to subscribe to The Economist on YouTube: http://econ.trib.al/rWl91R7
Discover Economist Films: http://films.economist.com/
View The Economist's full video catalog: http://econ.st/20IehQk
Like The Economist on Facebook: https://www.facebook.com/TheEconomist/
Follow The Economist on Twitter: https://twitter.com/theeconomist
Read our Tumblr: http://theeconomist.tumblr.com/
Follow us on Instagram: https://www.instagram.com/theeconomist/
Check out our Pinterest: https://uk.pinterest.com/theeconomist/
Follow us ONLINE: http://econ.st/1WXkOo6
Please take the opportunity to connect and share this video with your friends and family if you find it useful.