Time Travel

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MartinSilvertant's avatar
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Time travel; is it really possible, or doesn't it go much further than the stories about time machines in comic books? In brief I wrote down a few facts, accompanied by a few of my own theories.


Time travel; it would seem impossible, yet we're constantly traveling through time. This is because gravity has a pull effect on the time dimension. If you're close to a massive object – let's say a pyramid – time will go by slower near you. The time difference however is so imperceptible that you might as well neglect it.



For a relevant time difference, you would have to fly around the most massive object known in the universe (or multiverse); a supermassive black hole. You would have to fly around it for a longer period of time, and with enough speed to ignore the gravitational pull, thus avoiding lapsing over the event horizon and getting sucked into the black hole and become an infinitely small point which we call the singularity.



Another theoretical way to travel through time is by traveling at the speed of light (or rather, 99.9999% of the speed of light). If you get in some sort of transportation that travels near the speed of light, double the Earth time (assuming the experiment takes place on Earth) will have passed relative to the time passed in your hyper-transportation. But why wouldn't this hyper-transportation travel at 100% of the speed of light, or even faster that that? According to Einstein's theory of relativity, no physical object, message or field line can go faster than the speed of light*, because the maximum speed of light is finite, and an absolute value. The speed of light in a vacuum is the same for all observers, regardless of their relative motion or of the motion of the source of the light.  What this means is that no form of transportation can reach or exceed the speed of light; not even by cumulative speeds. Now let's assume our hyper-transportation is a long form of transportation. Let's call it a hyper-train. If this hyper-train travels at 99,99% of the speed of light, and you drive from the back to the front of the train with a small yet fast form of transportation, you would still not reach or exceed the speed of light because the speeds are not cumulative. This is because at such high speeds, time slows down just enough to prevent you from ever reaching 100%. Still, the time difference you experience by going close to the speed of light can already count as time travel, even if the travel is not instant.



Every material – even a seemingly solid and smooth material – is everything but flat on a micro level. The material consists of a robust construction with gaps and holes. The time dimension is no different. There are tiny holes in the very fabric of time. These tiny holes are very, very tiny black holes through which you can travel through time. They're just too tiny for humans to be relevant. But what if that isn't necessarily true? What if it's because of these black holes that we can constantly travel forwards in time (though gradually as opposed to controlling the time's speed and direction [meaning backwards or forwards])? What if this is the very reason that we perceive time as being linear? What if this is the only reason that everything is dynamic as opposed to static and lifeless? I guess you could see it as a link from this moment to the next one.



Also, as you might know we are constructed of matter, which is the residue of the big bang. During the big bang matter and anti-matter collided and formed a violent reaction infinitely more powerful than a nuclear explosion or even a supernova. The matter and anti-matter off-set each other, but there was one in a billion particles more matter than anti-matter, which is why we are made of matter. What if anti-matter has its own time dimension which has an opposite effect of "our" time dimension? Just some thoughts.



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MadKingFroggy's avatar
Travelling faster than the speed of light may be achievable be sending out an strong enough pulse of kinetic energy just as it reaches close enough to 98% the speed of light to force it against the barrier. Sound barrier breaches cause sonic booms, so it is likely that breaching light would cause some sort of phenomena, which is why it may appear to be so hard to cross that barrier. 
It may be easier than we first thought (as space phenomena can tell us), but any effects of time travel would most likely not be visible to us due to the fact that we would be affecting the past of another parallel universe.


Btw, thought you might be interested in this journal I wrote too: :) On-the-Feasibility-of-Time-Travel