>>19418725It is not dumb you stupid mutated space monkey.
It is the very principle. A low pressure vacuum and a pressurized rocket within that vacuum. What you see in that webm is the very same thing that would happen in such a hypothetical "space". The exhaust of a rocket in "space" would be swallowed up by the immense vacuum of "space" that supposedly surrounds that rocket. There won't be any acceleration in such conditions. Physics is the real world, your science-fiction fairy farts however are not reality.