1960 paper predicted world population 'doomsday' on Nov 13, 2026

A 1960 paper by physicist Heinz von Foerster and two colleagues, published in Science, predicted that the world's population would approach infinity on Friday, November 13, 2026, calling it 'doomsday'. The term refers to a catastrophic or final day. The formula implied about 45 billion people in 2022, while the UN counted around 8 billion.