Book 3, Part N, Chapter 168: Replace the Symbol with the Substance "Rationality: From AI to Zombies" by Eliezer Yudkowsky Independent audio book project by Walter and James http://from-ai-to-zombies.eu Original source entry: http://lesswrong.com/lw/nv/replace_the_symbol_with_the_substance/ The complete book is available at MIRI for pay-what-you-want: https://intelligence.org/rationality-ai-zombies/ Source and podcast licensed CC-BY-NC-SA, full text here: https://creativecommons.org/licenses/by-nc-sa/3.0/ Intro/Outro Music by Kevin MacLeod of www.incompetech.com, licensed CC-BY: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100708<img src="http://feeds.feedburner.com/~r/FromAiToZombies/~4/apWxt_7yau0" height="1" width="1" alt=""/>