Is Time Travel Possible Beyond the Speed of Light?

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SUMMARY

This discussion centers on the concept of time travel and the implications of exceeding the speed of light, which is universally accepted as the speed limit in physics. The original poster questions whether a hypothetical particle traveling at five times the speed of light could experience time differently, potentially traveling into the past. Responses emphasize that violating the speed of light contradicts established physical laws, rendering the question moot. The consensus is that without the framework of these laws, meaningful answers cannot be derived.

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  • Understanding of Einstein's theory of relativity
  • Basic knowledge of the speed of light as a universal constant
  • Familiarity with concepts of time dilation
  • Awareness of the implications of hypothetical particles in physics
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jonatron5
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I have always been fascinated with physcics ans sciencefiction sadly i haven't had much beyond a high school course of it, my question isthat ,Everyone knows that lights peed represents the universal speedlimit. And from my understanding it's because as you add energy to an object you add the mass of the energy to the object as well. And it scales exponentially or maby the better word would be (asymptoticly) to lightspeed.

Now if we take this well established fact and throw it out the window. And say a hypothetical ship or particle somehow exceeds the speed of light then from the particles point of view everything behind it is the past (or at least is the reflection of the past) time for the particle should be incredibly slowed to the point of being instantaneous from a stationary observer. If the particle continues in motion at a rate 5xc for one year then stops abruptly and waits, has the particle travels 5 years into the past from point of origin? Or is the particle simply seeing the light from 5 years in the past and still in the same time as the people at the point of origin would be?

When I go outside at night and look up at the sky the light I'm seeing from stars is not "live" there is a signal delay between me and the star because of the vastness of space. But that doesn't mean I'm in the past to the actual star does it? Surly not , surly the star Continues to burn right this very second. Or is this not the same concept since I did not exceed the light to get here.
 
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Just a thought. I realizedthis might not be possible to answer since our current math says it's impossible to do, like asking what happens when an unmovable object hits an unstoppable force.
[Mentor's note: Post edited to remove personal theory]
 
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jonatron5 said:
Now if we take this well established fact and throw it out the window...
If you throw that fact out the window you're throwing the laws of physics out the window with it, because you can't have the laws of physics without that fact. So you can't expect the laws of physics to tell you anything about this situation - you're basically asking "What do the laws of physics say in a situation where they don't apply?"

This thread is closed.
 
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