Yesterday, Friday the 13th, was supposed to be the end of the world — or at least the end of the world as humanity knew it — according to a short paper published in the journal Science 66 years earlier.
In November 1960, Heinz von Foerster, a University of Illinois cybernetics pioneer, and two of his students, Patricia Mora and Lawrence Amiot, published a paper with the blunt title "Doomsday: Friday, 13 November, A.D. 2026." Working from roughly two dozen population estimates stretching back nearly 2,000 years, they argued that human numbers weren't just growing exponentially but hyperbolically — faster and faster, with the doubling time itself shrinking — and that the trend line hit a mathematical singularity on that exact date.
A deliberately alarming headline
According to a retrospective by historian Alan MacEachern, republished by Gizmodo, the authors never pretended the species would literally hit infinite population. The paper was a kind of stage trick: an ordinary piece of demographic modeling dressed up with a shocking title and conclusion so editors, and the public, would actually read it. Their real argument was that unchecked growth would eventually crush the planet's capacity to support it — in their words, strikingly blunt for a scientific journal:
Our great-great-grandchildren will not starve. They will be squeezed to death.
Heinz von Foerster, Patricia Mora and Lawrence Amiot, writing in Science, 1960
Demographers were not amused. Letters to the editor called the model "ridiculous" and "manifestly absurd." Von Foerster and his co-authors defended their math in print anyway — and for a while, reality seemed to back them up: through the 1960s, '70s and '80s, their curve tracked world population growth more closely than most formal demographic forecasts, and it was cited at face value in genetics and ecology textbooks, in a 1963 Canadian parliamentary hearing, and even in briefs ahead of Roe v. Wade.
Where the model finally broke
The fit began to slip around 1993, when actual population growth fell behind the hyperbolic curve for good. Birth rates have since dropped to roughly half their 1960 level — which, per Wikipedia's summary of the paper's legacy, is close to exactly what von Foerster's team said would need to happen to avoid the crunch. Global population today stands near 8.2 billion, growing, but at a steadily slowing rate — nothing resembling Friday's predicted singularity.
So humanity woke up this morning more or less as usual. The 1960 paper's enduring value, historians say, isn't its arithmetic but its stunt: a warning dressed as a prophecy, built to be remembered past its own deadline.
