I just don’t get it.
According to the theory of special relativity, nothing can ever move faster than light speed.
But due to the expansion of the universe, sufficiently distant stars move away from us faster than the speed of light.
And the explanation is…that this universal speed limit doesn’t apply to things that are really far away?
Please make it make sense!
One object is moving speed of light in one direction. Other object is moving speed of light in opposite direction. They are moving 2 speed of light away from each other.
Except that isn’t true in special relativity.
In your example, according to special relativity, an observer on object A would see object B moving away at the speed of light.
An observer on object B would see object A moving away at the speed of light.
An observer at a point in the middle would see both object A and B moving away from them at the speed of light.
In special relativity, the speeds don’t add.