(Young) experimental particle physicist here. While our current progress in particle physics has slowed down since the 70's, we've still learned quite a bit in

(Young) experimental particle physicist here. While our current progress in particle physics has slowed down since the 70's, we've still learned quite a bit in the last 20 years. For example we've observed the top quark, tau neutrino and Higgs boson. We have also learned lots of stuff about neutrinos, like that they have mass and oscillate. There has also been amazing progress in detectors, although that's mostly behind the scenes. Other fields of physics have had much more interesting discoveries though (e.g. graphene).