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RE: Time Travel - "A Sky Full Of Ghosts"
The thing about Neptune being 400 light years away isn't true. It is (250 light minutes). Light reflected on Neptune would take a little over 4 hours to reach Earth. The way you are saying it would mean that it would take a space craft 400 years to reach Neptune if it was traveling at the speed of light. Our solar system isn't that big.
Thank you sir for spotting that! You're completely right. Changes have been made