I was illustrating that our general experience is that moving things keep moving until something stops them. Why should it be any different in space? Is it the atmosphere that keeps things moving?
Yes it's the atmosphere that keeps things moving. In conjunction with energy applied to keep whatever object is moving against CONSTANT friction for and against. It has to be like this for anything to move.
There is never any free movement...EVER.
I'm not sure what your point is here. I agree that things stop moving when other things get in their way.
As I said, there's always something getting in the way. It doesn't have to be a solid object to our vision. Just atmospheric friction stops all objects.
If there's nothing to stop something moving, it will keep moving forever.
This is fantasy land or space or whatever you want it to be.
For nothing to stop something moving means there's nothing to start it moving. Get your head around it and you'll understand it.
The reality of space is such that it will run into something else eventually, but that doesn't negate the point.
There is no reality of space but the space that was made up for people like you...and me at one time.
TV shows and bullshit documentaries have convinced you that space is some kind of environment that you can simply float in forever.
Even if we take space as being an environment that makes a person buoyant, you still need a medium for that to happen. It cannot be empty space. You also have to fit that medium in order to appear to float. A large helium balloon with you in a cage under it will make you appear to float. A hot air balloon will do likewise.
The point is, it's a medium.
In fantasy space you have a vacuum as you are told. You have no means of propulsion. You have no gain from effort.
Remember when you were told that a helicopter would not work in a space vacuum?
It's the same scenario with EVERYTHING, because there is no leverage. there is nothing to push against to give leverage to create a reaction to that.