Renormalization is a very specific technique, mostly used in HEP, to work around the infinities cropping up into the calculations. It does not let you predict anything about a lower-energy model from the higher-energy one, only to replace “bare” quantities with the renormalized ones.
Renormalization is a very specific technique, mostly used in HEP, to work around the infinities cropping up into the calculations. It does not let you predict anything about a lower-energy model from the higher-energy one, only to replace “bare” quantities with the renormalized ones.