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Professor Ian Morison asks: Is time travel possible?

Professor Ian Morison asks: Is time travel possible?

Professor of astronomy, examines the complex possibility of using a wormhole to travel through space and time

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ajhawkinsjr ajhawkinsjr (3060 days ago)
If he was to travel 2.5 million light years away and 2.5 million light years back shouldn't that take him 5 million years if he traveled at or near the speed of light??? The wormhole wouldn't effect the travel time unless it stretched to Andromeda then he could just step through, it wouldn't take any time at all, right???
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If he was to travel 2.5 million light years away and 2.5 million light years back shouldn't that take him 5 million years if he traveled at or near the speed of light??? The wormhole wouldn't effect the travel time unless it stretched to Andromeda then he could just step through, it wouldn't take any time at all, right???
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glortman glortman (3059 days ago)
The andromeda galaxy is 2.5 million light years away, without the wormhole. Use the wormhole, and you take a shortcut across both space and time. So even though your shortcut might be nearly instantaneous for you and your spacecraft, the universe still moved ahead by the time required for you to traverse the entire distance without the shortcut.
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The andromeda galaxy is 2.5 million light years away, without the wormhole. Use the wormhole, and you take a shortcut across both space and time. So even though your shortcut might be nearly instantaneous for you and your spacecraft, the universe still moved ahead by the time required for you to traverse the entire distance without the shortcut.
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ajhawkinsjr ajhawkinsjr (3058 days ago)
Latest comment: But the wormhole isn't a factor 'til it's made. Once it's made the local end is locked in time as well as space. It will take you 2.5 million years to get to Andromeda, but you can step into the wormhole at that end and come out at the instant you made it, is what I get from his presentation. My question was about how he decided the trip could take less than the 2.5 m years just because he had one end of a wormhole in his greenship. I didn't get that part.
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Latest comment: But the wormhole isn't a factor 'til it's made. Once it's made the local end is locked in time as well as space. It will take you 2.5 million years to get to Andromeda, but you can step into the wormhole at that end and come out at the instant you made it, is what I get from his presentation. My question was about how he decided the trip could take less than the 2.5 m years just because he had one end of a wormhole in his greenship. I didn't get that part.
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WalterEgo WalterEgo (3061 days ago)
Einstein said: The only reason for time is so that everything doesn't happen at once. I love that idea.
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Einstein said: The only reason for time is so that everything doesn't happen at once. I love that idea.
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