Flat Earthers are biological slaves of the Illuminati in the TOTMGsRock Universe.
They are people who think that the Earth is flat, and they make people stupid with their claims, and the Illuminati is using them to brainwash people. They have no true brains. They only have a false brain placed by the Illuminati. They also have remotely-controlled nervous systems so that the Illuminati can control them like puppets.
Flat Earthers are also actually real people and are just as anti-scientific as the Flat Earthers in the TOTMGsRock Universe.