November 13, 2026 Was Supposed to Be the End of the World: How a 1960 Prediction Went Viral Again

There is a date bouncing between posts, videos and comments these days: Friday, November 13, 2026, the day the world is supposed to end. According to ScienceDaily, most people repeating it do not know that it was not born on social media. It comes from a real scientific article published in the journal Science, under the unmistakable title "Doomsday: Friday, 13 November, A.D. 2026".

The piece was written by Heinz von Foerster, an Austrian-American professor and cybernetics expert, and two of his students, Patricia M. Mora and Lawrence W. Amiot. At the time, on November 4, 1960, world population stood at about three billion people. The three used 24 estimates of the world population stretching across some two thousand years and concluded that human growth was not merely exponential but ever faster: the capacity to communicate and form coalitions, they argued, turns density into opportunities for collaboration. Extending the curve, the calculation reached a point where the number of inhabitants grew without limit. That point fell on November 13, 2026.

The network has covered a similar case elsewhere: a tour announced months in advance follows the same logic as this date, a calendar that works because it promises a great deal ahead of time. Predictions that come true, though, are another matter.

What they actually wrote

In the text the authors were blunt, and their words are quoted by the source: "Our great-great-grandchildren will not starve. They will be squeezed to death." But the solution they proposed was anything but apocalyptic. If population growth really led to that limit, they said, then what produces it has to change: halving the global birth rate. Not waiting for disaster, in other words, but acting on one of its variables.

What makes this story a textbook case is something else: the calculation worked. For decades the authors' projections proved more accurate than those of most demographers, at least until the 1980s. Then, around 1993 — halfway to the fateful date — things began to drift. World population started falling below the forecasts, because the global birth rate was dropping. Today it is slightly less than half what it was in 1960.

The model was not disproved by a math error: it was disproved by changed human behaviour, precisely the lever the authors had pointed to. The curve was correct up to the point where people did something different from what it predicted.

The meme already existed in 1960

Today's spread looks like a recent phenomenon, but it is not. The news had immediate resonance at the time: Time and the New York Times covered it. It even became the subject of a series of comic strips of Pogo, one of America's most widely read comics. Then, from the 1960s to the 1980s, the formula was cited in earnest in genetics, ecology and demography textbooks. In 1963 a representative of the chemical industry cited it before a Canadian parliamentary committee to argue for the necessity of pesticides; in 1971 it appeared in a US Supreme Court case.

When Science published letters from mathematicians and demographers attacking the study as "ridiculous" and "manifestly absurd", the authors responded by defending their calculations. The curious point, observes Alan MacEachern, professor of History at Western University, in a signed article in The Conversation republished by ScienceDaily, is that the paper had an unusual fate: born as an ordinary scientific publication wrapped in an extraordinary title, it stayed cited for decades.

MacEachern, who is the voice of this story, picks up one detail that explains a great deal: von Foerster had been, at one point in his life, a stage magician. And a stage trick, the historian writes, rests on three parts: the setup, the extraordinary turn and the final reveal that returns everything to normal. The 1960 article worked for exactly that reason. His conclusion: drawing the world's attention to something serious by way of absurdity "is a good trick".

The number the curve did not foresee

Looking at today's data, the paradox closes. In 2022 world population passed eight billion, and for 2024 the United Nations estimate was around 8.2 billion. UN projections published in 2024 place the possible peak around 10.3 billion towards the mid-2080s, followed by a gradual decline to about 10.2 billion by 2100. The global growth rate reached its historical maximum around 1968, close to 2.1% a year, and has kept falling since.

In Italy the trend is even sharper: in 2025 355,772 children were born, 3.8% fewer than in 2024, with the average number of children per woman down to 1.14 (figures reported by BusinessOnline). No singularity, then: a decline.

For anyone wanting to follow these numbers closely, the network has a guide to demographic data read without shortcuts: the lesson is the same, namely that a figure only means something if you know what it measures and under which conditions.

What a viral format learns

What keeps this prediction a case study even today is not its accuracy: it is its structure. A dramatic headline, serious mathematics, a precise date, a concrete request. In 1960 it was a scientific article; eighty years on, the same form — an exact date promising an enormous event — is that of the memes that keep circulating, and November 13, 2026 is there to remind us of it.

It is worth saying plainly: the date is real, it was not invented by social media. It is a hoax with a scientific source behind it, which stopped being true the day people began living differently from what the curve imagined. The world will not end on Friday: as the historian writes, we will probably wake up to an ordinary day. But the lesson about absurdity used to talk about serious things still holds.

Fonte

• ScienceDaily — Scientists predicted doomsday for November 13, 2026. Should we be worried? (text by Alan MacEachern for The Conversation, 16/10/2026)
• BusinessOnline — Come nasce la profezia del 13 novembre 2026 (10/11/2026)
• Original article: Doomsday: Friday, 13 November, A.D. 2026, Science, 4 November 1960