Hey guys, I just want to ask a quick question that confuses me a bit regarding the twin paradox. During acceleration, the moving twin very quickly 'runs over' across a large segment of the worldtube of the stationary twin. But, what is the perspective of the stationary twin during the acceleration of the moving twin (or during its change of frames). Does the stationary twin also run over across the part of the worldtube of the moving twin that is accelerating? Sorry if my English is bad, I hope you understand the meaning behind this. Cheers.