light is just a state of Le Sage particles.

       Light is just a state of Le Sage particles.
 https://en.wikipedia.org/wiki/Le_Sage%27s_theory_of_gravitation
Maybe spin?
Those Le Sage particles do not have to be like stones as some mama-ticion used to disprove those, (Feynman).

The question you must ask is:
 "What should Le Sage particles look like for stuff to work?"
      It is SIMPLE
 like the earth orbits the sun, versus earth in the center ..

So, if you meddle with electrons (you change the spin?) of Le Sage particles,
then those modified particles travel _at the speed of light_
Now gravity and EM radiation are united in one sentence
and that explains all we measure.