Re: What composes the mass of an electron?

Given the last estimated radius of 10E-18 meters, maybe Coulomb forces
are invalid at such tiny volumes.
Also, maybe the negative density of charge does not exist, and electrons
are some kind of pinch in the "ether" or in dark matter, in a particular
way. But then, quarks and their fractional "e" charges exist because
different kinds of "pinchs" are applied.
What? An undiscovered property of nature?
Space has to be electrically neutral, unless a pinch of some kind is
exerted.
Didn't Dirac predicted something like this in his "Sea of Positrons and
Electrons"?
https://en.wikipedia.org/wiki/Dirac_sea