Some readers think that I am “against” QED and QFT results because I am against renormalizations. I think I might be insufficiently clear in my critics of renormalizations and thus produced such a false impression.
No, on the contrary, the final results of QED are right and I use them as a valuable data. I am just for a short-cut to these results. A careful reader can easily infer my position from my posts. I am convinced that we (I mean the QED fathers and followers) work with a wrong QED Hamiltonian. Because of this, we are forced to “repair” the calculation results “on the go”. “Repairing” includes discarding unnecessary corrections to the fundamental constants and a selective summation of soft diagrams to all orders. So we only obtain the right inclusive cross sections in the end, not before!
The right Hamiltonian can give the same final results directly, in a routine perturbative way, without discarding any corrections and without summation of divergent diagrams to all orders. The right Hamiltonian, if you like, can be equally called an “exactly renormalized” Hamiltonian. It contains only physical characteristics and it must be constructed just in a more physical way – what is coupled permanently in nature should be implemented so in the new Hamiltonian rather than “coupled perturbatively”. A better initial approximation leads to a better perturbative series – the latter turns into finite and reasonably small corrections due to the new initial approximation being closer to the exact solution. That’s it!
Some readers want me to produce QED results with even more precision than the actual QED provides. They say it is the only way to attract attention to my approach. Frankly, they want too much from me (I mean, from one person). A theory development is a result of years of work of many professional researchers. And I do not even hold an academic position with sufficient research freedom to carry our these laborious calculations. So my results are modest in this respect. But I hope I outline the right direction quite unambiguously.
P.S. See this.