Science

Is there *any actual example* of infinity in physics?

I’m reading about Ramanujan’s summation method to assign a value to a divergent series (eg, 1 + 2 + 3 + 4 + … = -1/12), and it seems to me that *every time* infinity shows up in equations, it’s nature’s way of telling physicists that their model is wrong

the closest actual examples are electron's magnetic moment and some things from quantum field theory, but nothing hard proven yet 😵‍💫

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This is just signaling that your theory is an effective theory, not fundamental. And that you need to use renormalization to fix those infinities that signal your theory is not correct in the ultraviolet.