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