Radiohead - 2+2=5

The song's title recalls the symbol of unreality from George Orwell's novel Nineteen Eighty-Four. In the book, inhabitants of an authoritarian future state are made to engage in doublethink, replacing their own conscience and beliefs with those imposed from above. The 'Thought Police' in the novel coerce self-aware citizens into admitting that two plus two equals five to prove the point that even though two plus two does not logically equal five, logic does not matter when no one else is willing to agree that two plus two equals anything else, under threat of pain or death.