Quantum of light (photon) is a point.
Electron is a point/ sphere.
Proton is a point / sphere.
They created an (point / sphere) atom.
The atoms form :
a) stars . . .planet,
b) cells . . . . life.
All the rest are trivialities.
==.
Question.
Why does Physics have many branches which
don’t incorporate and doesn’t have Unified theory?