What is the Andromeda Paradox and its implications for time travel?

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    Andromeda Paradox
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SUMMARY

The Andromeda Paradox challenges traditional notions of simultaneity in the context of time travel and cosmic events. The discussion highlights that the Earth's orbital speed significantly affects the perception of events on Andromeda, suggesting that while the Earth moves away, the evolutionary timeline of Andromeda's inhabitants remains static. Furthermore, the argument emphasizes that information regarding simultaneity is limited to the speed of light, necessitating a focus on local events for accurate understanding.

PREREQUISITES
  • Understanding of the Rietdijk-Putnam Argument
  • Familiarity with the concept of simultaneity in physics
  • Basic knowledge of orbital mechanics
  • Awareness of the speed of light as a universal constant
NEXT STEPS
  • Research the implications of the Rietdijk-Putnam Argument on time travel theories
  • Explore the concept of simultaneity in special relativity
  • Study the effects of orbital mechanics on cosmic events
  • Investigate the limitations of information transfer at the speed of light
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Physicists, cosmologists, and anyone interested in the philosophical implications of time travel and the nature of simultaneity in the universe.

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http://en.wikipedia.org/wiki/Rietdijk-Putnam_Argument"
 
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That argument is all 'smoke and mirrors' IMO. Look at it this way. The Earth is moving in its orbit far faster than the pedestrians are walking. So when the Earth is moving in its orbit (generally) away from Andromeda the race hasn't evolved yet while when the Earth is moving toward Andromeda they should have already conquered us.

Any information about simultanaity can only travel at the speed of light. So I think you have to restrict the 'plane of simutanaity' to local events.
 

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