According with Popper you can not say that a model "is tested". Only that it has not yet falsed.
This is fine. It's true that empirical sciences assume axiomatically that things can be isolated from the Universe, and that this assumptios in obviously not true at all. But this hole doesn't support your affirmation of the "reallity" quarks and your negation of the "reallity" of tachyons.
The difference is that planets can be observed, but quark and tachyons no, because the same theory that postulates its existence, avoid its proper observation.
You only could say that quarks explain now more things that tachyons, which I agree.
Ok , but according with te natural lenguage meaning of prefix "ultra"
http://dictionary.re...m/browse/ultra-
, I find this denomination very confusing
No: For tachyons v>c the SR model of energies predicts imaginary values of energy as (1-v^2/c^2) is negative
Very Interesting . I dont know. I would be very glad if you could give me some insights or references about this internal inconsistence.
The decision about if one prediction is lucky or well based is a question of beliefs. If I was a deep non believer in standard model I could ever argue that predictions of SM are only lucky.