Does 1+2+3+... Really Equal -1/12?
I&#x27;m gonna be contrarian and say, yes it does - it&#x27;s been physically proven! The casimir effect, as other people here have mentioned, depends on this being true, and it has been experimentally tested.<p>To me it&#x27;s one of those things where you just go &#x27;damn&#x27; because of the perplexing relations that exist between math and physics. If anything hints at what the hell goes on in this universe, to me it&#x27;s stuff like this.