Happy Friday the 13th. According to a famous science paper, you shouldn't be here to read this.

For weeks the internet has been counting down: "Scientists predicted the world ends on Friday, November 13, 2026." Some versions blame a Harvard expert. Some add natural disasters or a killer solar flare. Here's the twist: the paper is real. It's what the paper actually says that got lost.

The paper with today's date in the title

Fact: On Nov. 4, 1960, the journal Science published "Doomsday: Friday, 13 November, A.D. 2026." The authors were Heinz von Foerster, an Austrian-American electrical engineering professor at the University of Illinois, and two of his students, Patricia M. Mora and Lawrence W. Amiot. Not Harvard. Illinois.

Fact: They took 24 estimates of world population stretching back 2,000 years and fit a curve to them. The curve didn't just grow, it grew faster and faster, with each doubling of humanity coming quicker than the last. Run that curve forward and the number of people shoots toward infinity at the year 2026.9, which lands in the middle of November 2026. The title named the day: Friday the 13th.

Their most quoted line: "Our great-great-grandchildren will not starve. They will be squeezed to death."

Fact: Their proposed fix wasn't a bunker. It was for the world to work together and cut the global birth rate in half.

Serious math, cheeky date

Fact: Nov. 13 was von Foerster's birthday. He was born Nov. 13, 1911, in Vienna, so today would have been his 115th.

Fact: He was also, at one point in his life, a stage magician. Historian Alan MacEachern of Western University, who wrote about the paper this fall, compares it to a magic trick: the setup, the extraordinary turn, and the reveal. "To draw the world's attention to a serious matter by way of absurdity," he wrote, "that's a good trick."

But don't call it a joke paper. When mathematicians and demographers wrote to Science calling the work "ridiculous" and "manifestly absurd," the authors fired back and doubled down on the math. For decades, the "Doomsday" equation showed up in textbooks on genetics, ecology and demography.

Open question: How serious was he? People still argue about it. Population biologist Joel Cohen of Rockefeller University told Science he doesn't think von Foerster "was seriously trying to predict the future. He was drawing attention to a pattern."

So why are we still here?

Fact: For about 30 years, the curve was eerily close to reality. Then, around 1993, real life fell off it. Birth rates dropped. Today the global birth rate is a little less than half what it was in 1960.

Fact: If the formula had held, there would have been roughly 200 billion of us at the start of 2026. The actual number is about 8.3 billion.

Fact: The United Nations' 2024 projections have world population growing from 8.2 billion in 2024 to a peak around 10.3 billion in the mid-2080s, then easing to about 10.2 billion by 2100. That's a curve that bends over, not one that blasts off.

What about the solar flare?

The 1960 paper says nothing about the Sun. Fact: NOAA's Space Weather Prediction Center forecast issued Nov. 12 called for no geomagnetic storms and no solar radiation storms through Nov. 14, with only a chance of minor to moderate radio blackouts. In other words, a normal Friday.

Fun fact: Today is 2026's third Friday the 13th (after February and March). Three is the most any year can have. If you were going to pick a year to schedule doomsday, this was the one.

And yes, scientists are marking the date anyway. Vienna's Complexity Science Hub timed a conference on "the sense and nonsense" of end-of-the-world predictions to Nov. 12 and 13.

The verdict

BUSTED. No scientist predicted the world ends today. Three researchers in 1960 showed what would happen if population kept growing like it had for two millennia, pinned the answer to the lead author's birthday, and told the world to slow down. The world did slow down. Grab a coffee, it's just Friday. 🐇🕳️

Sources

1. Heinz von Foerster, Patricia M. Mora and Lawrence W. Amiot, "Doomsday: Friday, 13 November, A.D. 2026," Science 132: 1291 to 1295, Nov. 4, 1960. https://doi.org/10.1126/science.132.3436.1291
2. The Conversation, Alan MacEachern, "Scientists predicted 'Friday 13 November 2026' would be 'doomsday.' Should you be worried?" Sept. 30, 2026. https://theconversation.com/scientists-predicted-friday-13-november-2026-would-be-doomsday-should-you-be-worried-290354
3. The New Daily, "'Squeezed to death': Doomsday is nearly upon us," Oct. 13, 2026 (Joel Cohen quote, via Science). https://www.thenewdaily.com.au/life/science/2026/10/13/november-2026-doomsday-prediction
4. PopFake, "Is it true that scientists have named the date of the end of the world: November 13, 2026?" checked Nov. 5, updated Nov. 12, 2026. https://popfake.com/checks/nov-13-2026-doomsday/
5. NOAA Space Weather Prediction Center, 3-Day Forecast, issued Nov. 12, 2026, 12:30 UTC. https://www.swpc.noaa.gov/products/3-day-forecast
6. United Nations, "UN projects world population to peak within this century" (World Population Prospects 2024), July 11, 2024. https://www.un.org/en/UN-projects-world-population-to-peak-within-this-century
7. Wikipedia, "Heinz von Foerster" (birth date, formula). https://en.wikipedia.org/wiki/Heinz_von_Foerster

Fact note: The 1960 paper's full text was not read directly (paywalled); its title, authors, date and affiliations come from its Crossref record, and its quotes come from MacEachern's article. The space weather forecast is updated several times a day.