Geometric Horizon / Doublethink / "Science" vs Science / Discovery Science / National Geografic - Why Do Many Reasonable People Doubt Science? / Globe / FlatEarth Doublethink is a process of indoctrination whereby the subject is expected to accept as true that which is clearly false, or to simultaneously accept two mutually contradictory beliefs as correct, often in contravention to one's own memories or sense of reality.