re: Don't Worry
"you might want to change your approach and worry more about direct observations of reality instead of theorizations."
Uh, so we should stop just theorising about what may be the cause of inertial mass and build something so we can SEE a particle that could cause MASS but be undetectable because it is of such high energy it cannot exist except as a virtual particle?
I suggest we engineer something where we can get the energy concentration necessary to make these virtual particles exist for a detectible amount of time. This is probably best done by putting kinetic energy into particles and then getting them dense enough to create the right conditions.
To make them steerable, we should chose a charged particle. Protons maybe. Some sort of charged hadron anyway.
And if we shoot them about in opposite directions when the occasional one wollops into another one, the energy density should therefore be enough for our purposes.
Since this will be expensive, we need several countries involved. Best, from a political standpoint, to put the device in a suitably inoffensive "neutral" country with borders near to lots of other countries, so they all feel like they get involved. Switzerland should do. And CERN could work it, after all, they have some experience.
Can someone make such a device, please.