Imma go ahead and not copy-paste so d3v can't rage but I would say it's the infinite sum of n

Most of the solution is assumptions based on infinite series (the controversial part is that whatever theorem they taught us that if a sum cycles between two points, it's convergence is the average of those two points) solves to -1/12. So theoretically, if you add up every natural positive number into infinity, you get -1/12.

Wiki if curious. I found this originally from a numberphile video that I'll also link where they do the proof.
Wiki
Numberphile video

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