Sum of Natural Numbers (second proof and extra footage)
Why the open web links it
Explores the surprising result that the sum of all natural numbers equals -1/12, with a second proof and discussion of its implications.
Linked by 10 independent sites, 3 of them widely read in the 2026-10 crawl of the open web, including wikipedia.org, ycombinator.com, wolfram.com, maths.org, 137consulting.com.
Cited in 1 Wikipedia article, including 1 + 2 + 3 + 4 + ⋯.