I have read a lot about dark matter and dark energy, the fact that we are spending a small fortune trying to detect their presence, but the only reason they have been postulated it is an effort to protect the standard model. Dark Energy seems to act at a galactic scale, but do we notice it in our solar system? Come on, do we really believe that our solar system is some how special and has no dark energy or dark matter?
What else is wrong - Gravity is still absent from the model, so that is 25% of forces not accounted for (and the only force that actually shapes the universe!). Neutrino mass not accounted for, absence of anti-matter, I could go on.
From my perspective every barrier we come to we make up more and more unbelievable / incredible solutions in order to try and hold on to a model that is clearly flawed. When the standard model was suggested its simplicity was what made it seem so believable.
Do we not need to just get a clean sheet of paper and start again?