Most physicists did learn garbage
Since they work at the 6 digit level or less, they will never know..
of course. the best that QCD can do for the mass of proton is only 2 digits precision
https://arxiv.org/pdf/0906.3599.pdf
BUT you would never guess that from. the standard CERN propaganda
"Our results completely agree with experimental observations and represent a quantitative confirmation of this aspect of the Standard Model
with fully controlled uncertainties."
9.4+/-0.5. may be 'fully controlled' but. the theoretical error is huge