How is it possible that renormalization is accepted? : r/AskPhysics

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Is it scientific to accept renormalization when infinities appear? Why scientist aren't trying to find other formulas that don't generate infinities? Are there some articles or books about that? Edit A quote from Dirac: Most physicists are very satisfied with the situation. They say: 'Quantum electrodynamics is a good theory and we do not have to worry about it any more.' I must say that I am very dissatisfied with the situation, because this so-called 'good theory' does involve neglecting infinities which appear in its equations, neglecting them in an arbitrary way. This is just not sensible mathematics. Sensible mathematics involves neglecting a quantity when it is small – not neglecting it just because it is infinitely great and you do not want it! A quote from Feynman: The shell game that we play ... is technically called 'renormalization'. But no matter how clever the word, it is still what I would call a dippy process! Having to resort to such hocus-pocus has prevented us from pr

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How is it possible that renormalization is accepted? : r/AskPhysics

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