Evolutionary biologist Richard Dawkins is in the red chair tonight, along with his friend theoretical physicist Lawrence Krauss.
The conversation between Richard, Lawrence and George is fascinating - they get into some big questions about faith, atheism, and preaching to the unconverted. Catch it at 7pm on CBC Television.
But one moment in the discussion was a little surprising. It turns out there's a big, important gap in Richard Dawkins' knowledge: Bob Marley.
In the course of the conversation, George mentions Marley, and Richard says he doesn't know who that is.
George's response? "If you don't know who Bob Marley is, science has failed you, sir." Go to 2:22 in the video above to see the whole exchange.
After learning that Richard has been deprived of Bob's music, George promised to make him a mixtape.
Well, here it is: the playlist at the top of this post contains 25 tracks from Bob's catalogue that prove his music has power, whether you're a skeptic or a believer.