3 ms·
I'm not sure I see any real change in the status of asymptotic safety. It's a hypothesis. Proving it directly is next to impossible. (Except in spacetime dime
by auntienomen 9y ago
I'm not sure I see any real change in the status of asymptotic safety. It's a hypothesis. Proving it directly is next to impossible. (Except in spacetime dimension <= 3, when the theory is topological, making the assertion a triviality.) Testing it experimentally is unlikely; the constraints it implies are pretty weak. Nonetheless there are some people working on it, and while their ideas have some merit, they haven't yet caused the physics world to pay drastically more attention.
Also, it's unwarranted hype to call asymptotic safety 'an old theory of everything'. It's explicitly not a theory of everything. It's only about gravity. Couple it to the Standard Model, and you still have a theory which breaks down at the hypercharge and Higgs Landau poles.