The π-Apocalypse in the Year 4646

Tolles Posting auf Futility Closet mit Zitaten aus einem Artikel im Journal of Recreational Mathematics von 1977. Darin hat Underwood Dudley fehlerhafte Berechnungen von Pi aus dem 19. Jahrhundert auf eine Formel gebracht, laut der π langsam aber sicher kleiner wird. Und am 9. August 4646 um 20:55 und 33 Sekunden erreicht π den Wert 1. Damit werden alle Durchmesser gleich ihrem Umfang sein, alle Kreise im Universum werden kollabieren und mit ihnen alle Spheren, für uns natürlich besonders interessant: Erde und Sonne. Das Ende der Welt mit π. Math is Fun!

Various writers throughout the 19th century confidently reported that they’d found the true and exact value of π. Unfortunately, they all gave different answers. In 1977 DePauw University mathematician Underwood Dudley tried to make sense of this by compiling 50 of their pronouncements […]

He concluded that π is decreasing. The best fit is πt = 4.59183 – 0.000773t, where t is the year A.D. — it turns out we passed 3.1415926535 back in 1876 and have been heading downward ever since.

And that means trouble: “When πt is 1, the circumference of a circle will coincide with its diameter,” Dudley writes, “and thus all circles will collapse, as will all spheres (since they have circular cross-sections), in particular the earth and the sun. It will be, in fact, the end of the world, and … it will occur in 4646 A.D., on August 9, at 4 minutes and 27 seconds before 9 p.m.”

There is some good news, though: “Circumferences of circles will be particularly easy to calculate in 2059, when πt = 3.”

Crackpot Apocalypse