Speculation – Memory And Movement

I was wondering the other day. How come a body in space can keep its speed once it has been set in motion.

My guess is that it has got to be a memory of some kind. So inspired by IT networks I guess that atoms also form a network. A memory network.

However the signals in this network go back and fourth much faster.

So when a body is accelerated I guess it forms the memory of the impulse in its network of atoms.