[avandonk]

Alex even in the intergalactic realm where there are less than one proton (Hydrogen nuclei) per cubic meter there are billions of 'virtual particles' that fleetingly come into and out of existence.
This can actually be measured as empty space having a dielectric constant. Look up Casimir Effect.

There is an even stranger connection at the quantum mechanical level. Einstein called this action at a distance and it disturbed even him. It is also known as quantum entanglement. Taken to its extreme it means that everything in the Universe is connected still, as it once was all in the same place.

Bert