I’m not sure it is completely stupid. Consider the argument in the following fashion:
1) We think your physics is wrong and geocentrism is correct.
2) Even if we’re wrong about 1, your physics still supports regarding geocentrism as being just as valid as heliocentrism.
I don’t think that their argument approaches this level of coherence.
Oh. Well, that’s stupid then.
I’m not sure it is completely stupid. Consider the argument in the following fashion:
1) We think your physics is wrong and geocentrism is correct. 2) Even if we’re wrong about 1, your physics still supports regarding geocentrism as being just as valid as heliocentrism.
I don’t think that their argument approaches this level of coherence.