There are lots of unexplained things that we already know about that are outside of the standard model. For example: - The standard model doesn't explain any o

There are lots of unexplained things that we already know about that are outside of the standard model. For example: - The standard model doesn't explain any of the rest masses of the fundamental particles nor any of the coupling constants and a bunch of mixing angles. I think in total there are more than 30 input parameters that are completely unexplained - Neutrino oscillation/masses are NOT part of the standard model as it predicts them to be massless - Gravity is just not part of the standard model and currently cannot be combined properly with the other fundamental interactions