You may remember flat earther Joe Samui from a previous episode. Joe was so keen to come back on and talk even more flat earth theories, but we decided to bring in a guest that could really challenge Joe and knew what they were talking about. Step forward Ben, a man with a phd in Astrophysics who is also married to someone with a phd in astrophysics. This man lives and breathes space. So we decided to put him in a room with Joe and see what happens. Will our astrophysicist finally be able to convince the flat earther that the world is round? Well have a watch and find out.