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They start reading my e-mail at about 2:05, had a throw-back just after 28:00, another just after 39:15, and another after 50:40.
The text of my e-mail:
On the last episode of fourcast one of the guests suggested that we would likely have conversations with aliens sometime in the next couple hundred years. I think that a lot of people believe that if aliens come to Earth, that they will be advanced beings that have built technology that makes them capable of traveling vast distances in space. This is a rather human-centric view. I believe that the first aliens we encounter will actually be very technologically primitive and that they will just be creatures that are capable of surviving in space, in which their respiration is not dependent on oxygen, and that they will be gigantic space dragons!