I did a small monograph of a series of thought experiments around 7 years ago. I can say up front that I am ultra conservative when it comes to physics, a classicist, who insists that every interaction should have a medium and a mechanism of physical interaction.
I had an epiphany of sorts when contemplating why protons and electrons are different sizes, while not allowing myself to invent any new physical entities. I modeled particles as collections of virtual particle pairs, which are dipoles not unlike zero point energy itself, and considered that the internal forces related to the size of the particles. The stronger the outward repulsion the bigger and more massive the particle.
The only plausible explanation within the constraints I set up for myself is that matter and antimatter are opposed charges that interact in an identical matter to positive and negative electrical charges, but weaker over large (>1 um) distances.
Electrons and positrons have opposite electrical and matter charges (Electron = negative electric charge positive in matter) while protons and anti-protons have the have both charges of the same polarity for a stronger net combined force.
Once I gave in to the idea which took some time I recognized some of the following things the matter force explained.
1. The repulsive force that prevents an electron from falling into the proton. QED is unnecessary since it can be solved as a force balance equation.
2. The long range repulsive force causing the expansion of the universe.
3. The cosmological matter problem, since all matter and antimatter will annihilate due to the force, leaving one in excess in local regions of space time. The destructive phase also causes clumping of matter.
4. The matter magnetic field can explain a number of observatons such as:
a. The precession of the perihelion of Mercury
b. spiral galaxies structure
c. the attractive force holding spiral galaxies together, or planetary systems.
d. The slowing of the rotation of moons over time
e. convection currents within liquid planets, or keeping them liquid in the first place.
All of those things are not well explained by the standard model.
I still need to do a series of technical papers for publication in journals. I also need to fix some relatively minor errors in the monograph and change some things that I change my mind on in the past 7 years since i did it.
I also I want to complete a first principle derivation of gravitation before getting to much deeper. I have basically figured out that Sakharov was correct, it is a quasi Van Der Waals force exerting pressure on bodies.
In the mean time I am working designing/purchasing for my next round of vacuum arc discharge experiments, which is why I didn't post over the weekend, and don't have time to work on more theoretical pursuits at the moment.