>>14016391Things will use their internal configuration as a medium of interaction. They do not need to be submerged in air or contacting one another. What the internals are doing interact across independent bodies and form causation to the next interaction. That's electromagnetism, the internals are the medium of interaction.
Electrons transfer across conductive surfaces, creating an electrical potential. When that occurs, whatever is conducting doesn't look for the next electron across that chain of surfaces. It looks for it all around. That's magnetism. It's possible to interact with that without giving it an electron.
Gravity is everything out there wants to use you to dump their interactions or absorb your interactions. Whatever is easiest. Nature has no mind and does what it's surroundings tell it. To exist you are already pushing against those interactions. And you are emitting something looking for an easier path. That something is your internals, which is a medium of interaction itself.
An object gravitational field can change. Instead of moving, it's easier for a big star to tell everything out there to change their own gravitational field by saying "I'm made up of different particles" so it does it and everything takes that easier route.
Missing in your question is that internals have a latency. They interact. The outside takes time to show it, like in temperature or voltage. That's why we have a speed of light an Planck's constant.
Particles are not what the other responses made them out to be. Anything that has a discrete start and an end is a particle. A tick on a thermometer relating to interference bands of diffracted radiated light is a particle.
