Hello everyone, I've recently run into a thought experiment that is persistent and seems to have no intention to leave my mind alone ^^ I was hoping someone who is more experienced in this topic could leave some input. This is the setup for my thought experiment: Consider an object which is traveling in space with no exterior forces and therefore with constant speed in a certain direction. Now let's freeze time (that is, stop the world in which our thought experiment takes place) such that our object appears to be at rest. Certainly, the object still has kinetic energy, making it have a distinct property which an identical object without velocity does not have. This explains why our object will continue moving when we unfreeze our world. Well, now to my question: How does it 'know' in which direction it should go? Certainly, the object would have exactly the same kinetic energy if it were to go in a different direction, yet it does not. Or a more precise question would probably be, what is it that determines what direction a certain objects kinetic energy forces it to travel in?