# How can we test a theory of everything?

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Here are two possible, rather different, answers:

- Use the theory of everything (when a candidate appears) to calculate and then to measure deviations either form the standard model or from general relativity. Compare the results.

- Use the theory of everything (when a candidate appears) to calculate the constants of the standard model (the mass of the electron, 137.03, muon mass, quark masses), and compare the calculation results with measurements.

asked Nov 19, 2019 in Chat
edited Dec 13, 2019

In order to formulate a theory of everything one must carry out the experiements of everything at least.

it's almost the 2nd answer. How it could be different? Basically, the theory must predict all the experiments outcomes, but not necessarily with the previous paradigms. In such theory, one can imagine that old constants lose a part of their meaning and that new constants appear; ideally, a set of the needed background pure math theories.

Now, for many aspects, the SM is a TOE. Thus, I think you are meaning a single small set of axioms from which all the sub theories can be derived without fundamental additions. Why does it exist and weither is it reachable today are open questions.

and if the universe (multiverse) is infinite, then there are quite a lot of experiments to be done... :-D

Every physicist knows that the "experiments of everything" have been done for many decades. The summaries of these experiments have names: they are called the standard model and general relativity. They are mentioned in the question. So the statement by Vladimir is not an answer at all.

I looked up Vladimir's comments and answers from the past. He always does the same: telling that the question makes no sense.

@anonymous: Well, some people call me a "crackpot", so what? I am an independent and I hope I am quite reasonable. I do not extrapolate too far, unlike many others.

I do not care what others call you. I do not. I just find it very sad that you regularly tell others that questions make no sense. Why do you insist on demotivating people? Why can't you just read a question and either ignore it or answer it? If the same demotivation occurs inside your head, you will become very unhappy.

The question makes perfect sense. It is simple and clear. The answer may be complex and hidden, true. Sabine Hossenfelder also explored the question.

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After asking everybody I know, here is a summary. The TOE can be tested in both ways: (1) by calculating and measuring deviations either form the standard model or from general relativity and (2) by calculating the constants of the standard model.

On (1). It is not sure that deviations occur. But if they do, fame and riches are waiting.

About (2). It is sure that the constants need explanation. But we know the values already, so this option is boring.

It is best to follow both options, and hope that deviations are found.

answered Dec 15, 2019 by anonymous

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