My understanding of relativity is at the beginner level, so
please bear with me to help a beginner to understand. Something
which I don't understand is consider if you travel close to the
speed of light you will notice effects occurring, for example in
this video. https://www.youtube.com/watch?v=-CIs3jOnfiM it says
that close to the speed of light you will see distortions. Now
it is also said that there is no stationary position, everything
is moving relative to other objects. However, lets say there are
three people, one is myself, I sit still. Person A and B are
sitting next to me then they go off in opposite directions from
me and exert exactly the same amount of energy (thrust) for the
same amount of time to accelerate away from me. Both of them
came close to the speed of light, of course in opposite
directions to each other. Then they came back to me to report
their findings. Could it be that person A experienced more
distortions than person B, when they were travelling close to
the speed of light? Would