Close to but definitely non-zero IMO. The quark model has been around for less than 100 years; push that out to, say, 1000 year time-scale, and I could certainl

Close to but definitely non-zero IMO. The quark model has been around for less than 100 years; push that out to, say, 1000 year time-scale, and I could certainly see it developing entirely new physics compared to what we now know. The Standard Model is well-founded, but explaining the things it currently doesn't (gravity/dark energy/neutrino masses etc.) could well require it.