# Why symmetry breaking a paradigm whilst not describing Fermi liquid?

Hi!

So I'm a bit confused: first off, does Fermi liquid theory have "order". I suppose it depends on how you define order. But in case it does, is it described by symmetry breaking?

From what I read, I think it does have order which is not described by symmetry breaking. But then I have trouble understanding why Landau symmetry breaking was regarded as a paradigm for so long if another theory by Landau, i.e. Fermi liquids, did not fit it! (yes I know the paradigm is now overthrown too by topological order but that's not relevant here)