UGH ! ! I had already missed the last two episodes and I binge watched them to catch up and be ready for today ' s episode . just to find out they ' re not even airing a new episode today . <| sep |> did you become libertarian when you were 12 ? <| sep |> Slightly tangentially , a similar situation occurs in QCD , where we can find an approximate SU 3 X SU 3 symmetry between the u , d , s quarks due to their lightness relative to the c , b , t quarks . If the u , d , s quarks were truly massless there would be an exact SU 3 X SU 3 flavour symmetry . This approximate symmetry is hypothesized to broken by the QCD condensate down to a vector SU 3 group with 8 generators , so we should have 8 massless bosons by Goldstone ' s Theorem . It turns out that all masses of this meson octet are nonzero , because this is not an exact symmetry , but very light relative to the other mesons . They are called psuedoGoldstone bosons , and their small masses are related to the very small u , d , s masses and therefore low degree of symmetry breaking . The effect is even more pronounced if we just consider the SU 2 x SU 2 symmetry between the u , d quarks . In this case the associated psuedo Goldstone bosons , the pions have really small masses relative to almost all the other particles in the SM due to this being a pretty close to exact symmetry . Similarly , in the Higgs Mechanism the masses of all known elementary particles to an extent governed by the ' magnitude ' of the Higgs vacuum expectation value , which can be interpreted as the degree of spontaneous symmetry breaking . The caveat here is that the Yukawa couplings of each particle to the Higgs field also affects each mass , and these are , as far as we can tell , arbitrary . Unfortunately I am unsure of an exact relation between the degree of symmetry violation and the conservation of the associated quantity .