Physicist's 1960 Doomsday Prediction Pointed to November 13, 2026

Physicist Heinz von Foerster's 1960 paper in the journal Science calculated that human population growth would reach an infinite, "squeeze to death" breaking point on November 13, 2026, according to Ars Technica. That date arrived Friday. Humanity is still here.

How did von Foerster calculate the exact date?

Von Foerster built his model by measuring actual population growth trends recorded up through 1960, then extended that curve forward on the assumption the rate would keep accelerating, Ars Technica reported. He did not think food scarcity would kill people off, breaking with earlier doomsday math. "They will be squeezed to death," he wrote, according to the outlet, meaning rising density itself, not starvation, was his projected mechanism.

Why did the exponential curve fail to hold?

The underlying assumption collapsed almost immediately after publication. Mathematical biologist Joel Cohen, of Rockefeller University and Columbia University, told Popular Science, as cited by Ars Technica, that "the all-time peak happened in the early 1960s" and that "he got the picture right just as that picture ceased to be right." The baby boom that fed von Foerster's exponential trend line ended within a few years of his paper's release, per the same report. Von Foerster's model also did not account for longer life expectancy or sharp declines in child mortality, two shifts that altered population math in ways his 1960 equation could not capture, Ars Technica noted.

Was this the first failed doomsday population forecast?

No. English economist Thomas Malthus made a comparable argument in 1798, projecting that population growth would outpace food supply and starve humanity, Ars Technica reported. Malthus's model, like von Foerster's, rested on exponential growth holding indefinitely, a condition that in practice applies mainly to controlled settings such as bacteria cultures in a lab, according to the outlet. Scholars at the time of von Foerster's 1960 publication called his conclusion "ridiculous" and "manifestly absurd," Ars Technica reported, even as the paper drew heavy citation and press coverage.

Did the forecast ever look accurate?

For a stretch, yes. Historian Alan MacEachern of Western University, writing in The Conversation and quoted by Ars Technica, said von Foerster's core equation "yielded projections that were better than those of most demographers throughout the 1970s and 1980s." The persistence of the doomsday idea, MacEachern argued, traced directly to that multi-decade run of comparative accuracy, even though the underlying growth assumption was already breaking down by the time the paper appeared.

What actually happened on November 13, 2026?

No squeeze. Ars Technica noted the date's only real disruption was unrelated: Microsoft was still working to restore service that morning following a global outage a day earlier that had left users unable to access Outlook and other tools. The outage had nothing to do with population pressure, but its timing on von Foerster's named doomsday drew notice from the outlet. The piece also recalled a separate, older fear captured in a NASA-credited photo caption: some people believed Halley's comet would destroy Earth on April 29, 1986. It didn't.

The pattern across both forecasts is the same one Cohen described to Popular Science: a model can match the data right up until the moment the real world stops cooperating.