We have two twins, one on earth and one on a rocket traveling at very very high speed, near the speed of light, away from earth
After some time, the rocket decelerates so that the distance between him and his earth twin is nearly constant.
Suppose a third individual exists always exactly in the middle between the two twins(or belonging to the perpendicular bisector of the fictional line between the two twins), the observer uses a telescope to observe each twin.
So which one of the two twins aged more, the one on the rocket or the one on earth?
From the earth twin point of view he is stationary while from that of the rocket twin he is one stationary so who aged according to the third individual? Or does this not fall in the case of the twin paradox because they never meet?