I say things like hold your hands up and you can see the gap, the space between them, but you can't see time flowing. And I don't claim that time does not exist, I say it exists like heat exists.
I can't see space either. Just a lot of perceptions that I unconsciously interpret as an angular distance, and from there, a linear distance. Time is no different.
Drop a pencil. It falls down. Gravitational fields exist.
That's not the same as seeing a gravitational field itself. I don't see how time is a worse inference than gravity.
These are CERN professionals expressing their disatisfaction with the Higgs mechanism. ...
That's because the Standard-Model Higgs particle has certain theoretical problems, though these can be corrected with additional particles, like supersymmetry partners.
Interestingly, the Minimal Supersymmetric Standard Model requires not the SM's single Higgs doublet but two Higgs doublets before electroweak symmetry breaking. In the SUSY version as in the ordinary version, some of the modes get "eaten" by the W and the Z, but not surprisingly, there are more survivors. Unlike the single neutral Higgs of the SM, the MSSM has 3 neutral Higgses and 1 charged Higgs. However, the MSSM's extra particles can have masses much greater than the observed Higgs particle's mass.
The electron is a bound state too.
It is NOT. The electron satisfies the Dirac equation, just like the photon satisfying Maxwell's equations. Both equations are quantized, of course.
In fact, the Dirac hypothesis has been tested in elementary-particle experiments, like at the LHC's predecessor in its tunnels, the LEP. That accelerator smashed electrons and positrons into each other with energies of more than 100 GeV, and the electron still had Dirac structure.
Whatever the mechanism of confinement, the mass of a body is a measure of its energy content.
I fail to see the relevance of that issue.