Do you believe in god or math?

[Modular Moog V]

Last point first. I should have said energy or mass. But there is no experiment we can yet devise that can prove this. If we could create in the lab (an exotic type of machine,)
the conditions of absolute zero, the photon would be at rest, and we could see if it has mass. We remain in limbo.
Big problems testing this here: http://math.ucr.edu/home/baez/physics/Pa..._mass.html

Had you read your own link:
"If the rest mass of the photon were non-zero, the theory of quantum electrodynamics would be "in trouble" primarily through loss of gauge invariance, which would make it non-renormalisable; also, charge conservation would no longer be absolutely guaranteed, as it is if photons have zero rest mass."

Congratulations, you just broke E/M, general relativity and violated gauge invariance.

Last one's a killer though.

The main point is that they said there is no way to test it. Sorry, still limbo on actual knowledge at this point. We may find soon another way that does allow us to test it, to find if a photon does have mass.

I don't have a dog in the fight except for finding exception to the absolute statement, "a photon has no mass".
Other tests may lead us to this opinion, and certainly close the case, but when they say no test has been actually carried out, and they can't imagine how to do it, how certain can you be?

I am quite comfortable with a photon having no mass, and being merely energy if this can be tested, or other related tests show this to be true.

I would say that possibly the laws are not uniform, based on the fact that we have incomplete, and imperfect observations. Though, not certain that it is true, has the speed of light been surpassed recently?
Or even if the laws are constant, our observations being imperfect, and incomplete prevent us from being sure. I thought science was aware of this, and maintains its own strict skeptical reviews.


The argument, really, is can you create a machine with zero errors in measurement? If so, the perfect observations/proofs seen in math can be now verified in the objective world.
Until then, one can maintain a view that math is subjective.