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Message: <blockquote data-quote="imhotep" data-source="post: 30688231" data-attributes="member: 562115">It's also known as the Rietdijk–Putnam–Penrose argument that suggests if special relativity is true, then observers moving at diﬀerent relative velocities (any velocity, also non-relativistic velocities) have diﬀerent sets of events that are present for them.In particular, if two people walk past each other in the street and one of the people were walking towards the Andromeda galaxy, then the events in this galaxy that are simultaneous with the present time of this observer might be hours or even days advanced of the events on Andromeda simultaneous with the person walking in the other direction.The Andromeda paradox can be easily explained by the planes of simultaneity in the Minkowski diagram or alternatively by simply using the Lorentz transformations.[MEDIA=youtube]8oZa7ein6TU[/MEDIA]</blockquote>

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