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Author Topic: If you travel faster than light, could you look back and see past events?  (Read 16032 times)

Offline yor_on

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This type of definition is also a very strong argument for causality and logic being what defines a universe. It's no 'physical laws' per se, if interpreted as something locally measurable, that define a universe, but logic will do it, and with it, causality.

Offline jeffreyH

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This whole topic raises an interesting point. As discussed when viewing the external universe we are looking back in time. The further away an object is the longer the light has taken to reach us. This includes any red shift we detect. So if this red shift is further back in time the further away the object is how does that reflect the history of the expansion of the universe?

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