Stephen's fascinating conversation with author Michael Pollan continues with a look at how consciousness begins and whether AI will achieve it. "A World Appears: A Journey Into Consciousness" is available everywhere next Tuesday. #Colbert #Comedy #MichaelPollan #Books #AWorldAppears #StephenColbert #TheLateShow Subscribe To "The Late Show" Channel: http://bit.ly/ColbertYouTube Watch full episodes of "The Late Show": http://bit.ly/1Puei40 Listen to "The Late Show Pod Show" podcast: https://link.