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This question doesn't relate to general relativity as written.
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edit approved Jun 21 at 16:32
JimmyJames
edit approved Jun 21 at 16:32
JimmyJames
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Details & question in the title should occur in body too
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edit approved Jun 20 at 17:10
Prem
edit approved Jun 20 at 17:10
Prem
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He is movingJohn, in his spaceship traveling at a stable relativistic speed, andis crossing the Milky Way in 500 years of his own time.
How many supernovae explosions would he experience?

From my reference frame on earth, his trip would take 100,000 years, and so, he should experience thousands of supernovae explosions, shouldn’t he?

But from his frame of reference, he’s seeing the Milky Way moving at relativistic speed around him and he does not feel that he is moving, which means that from his point of view, while himself aging of 500 years, he would see the Milky Way aging much slower (probably only a few years) and thus he would experience extremely few or no supernovae explosions at all, wouldn’t he?

What is the solution to the apparent contradiction in this thought experiment?

He is moving at a stable speed, and crossing the Milky Way in 500 years of his own time.

From my reference frame on earth, his trip would take 100,000 years, and so, he should experience thousands of supernovae explosions, shouldn’t he?

But from his frame of reference, he’s seeing the Milky Way moving at relativistic speed around him and he does not feel that he is moving, which means that from his point of view, while himself aging of 500 years, he would see the Milky Way aging much slower (probably only a few years) and thus he would experience extremely few or no supernovae explosions at all, wouldn’t he?

What is the solution to the apparent contradiction in this thought experiment?

John, in his spaceship traveling at a stable relativistic speed, is crossing the Milky Way in 500 years of his own time.
How many supernovae explosions would he experience?

From my reference frame on earth, his trip would take 100,000 years, and so, he should experience thousands of supernovae explosions, shouldn’t he?

But from his frame of reference, he’s seeing the Milky Way moving at relativistic speed around him and he does not feel that he is moving, which means that from his point of view, while himself aging of 500 years, he would see the Milky Way aging much slower (probably only a few years) and thus he would experience extremely few or no supernovae explosions at all, wouldn’t he?

What is the solution to the apparent contradiction in this thought experiment?

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Alexandre Bart
Alexandre Bart
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John, in his spaceship traveling at relativistic speed, is crossing the Milky Way in 500 years. How many supernovae explosions would he experience?

He is moving at a stable speed, and crossing the Milky Way in 500 years of his own time.

From my reference frame on earth, his trip would take 100,000 years, and so, he should experience thousands of supernovae explosions, shouldn’t he?

But from his frame of reference, he’s seeing the Milky Way moving at relativistic speed around him and he does not feel that he is moving, which means that from his point of view, while himself aging of 500 years, he would see the Milky Way aging much slower (probably only a few years) and thus he would experience extremely few or no supernovae explosions at all, wouldn’t he?

What is the solution to the apparent contradiction in this thought experiment?