Somewhere between Earth and Mars, a small china teapot orbits the sun, too tiny for any telescope to detect. Bertrand Russell proposed this image in a 1952 article that went unpublished in his lifetime, and it became one of the most debated analogies of the twentieth century. This episode explains the architecture of the argument: if someone cannot expect you to believe in an undetectable teapot simply because you cannot disprove it, the same logic applies to any unfalsifiable claim, even one written in ancient texts and taught to children every Sunday. It also covers Russell's later distinction between being technically agnostic and practically atheist.

The conversation follows how Richard Dawkins used the teapot to attack what he called agnostic conciliation, how Peter Atkins added Occam's razor, and how Paul Chamberlain pushed back by ar ...