The possibility of time travel

[sollunaestrella]

TheComedian said:

It's not. The past is dead. Time isn't a line. You can't go backwards on it. Time is a point that is forever changing, but whose changes can not be reversed.

Unless you go to an alternate dimension, which Ruben says you can only create by going there. But that doesn't make sense. You can't go somewhere that doesn't exist, so how can it be created?



I must disagree.

Travelling to the future of Earth is possible. You just have to go fast enough or be frozen cryogenically. When you come out of whatever you travelled with, the Earth will be in the future of your own time.

The only difference? The world will have no record of your life after you travelled in time. Why? Because past time travel is not possible. You can't go back to your own time.

Travelling to Earth's future can be done. Travelling to yours can not.

No, I agree with you.

I was just asking what HIS theories behind travel to the past were - to see if he could explain it.

I don't believe that it's really possible (and if it were, I don't believe in the whole dimension thing either).

[Deleted]

SLE said:

No, I agree with you.

I was just asking what HIS theories behind travel to the past were - to see if he could explain it.

I don't believe that it's really possible (and if it were, I don't believe in the whole dimension thing either).

I knew you didn't disagree with me, but I was wondering if you actually weren't sure about it either way.

I was disagreeing with Stal.

[ruben]

PS: Sorry that I didn't reply much, but I've been having a few problems with the computer.

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I'll first explain the dimension creation/travel --> Well, with your 'time machine', whatever it may be, you for example enter '1576' as the time to go back in the past. But as soon as you reach the speed of light another dimension is created, instantly, and you are DIRECTLY thrown into it by your time machine...

Freezing- Well... I don't really see this as time traveling, why? Well, you can die during your freezing by a human being and never even reach the future intended. But still, we don't know what would happen to us if we traveled at the speed of light... Maybe we could only survive then since you couldn't breath, if traveling so fast... (I don't know, neither do you all, I'm simply guessing).

- Ruben V.

[Stal]

Belgian said:

PS: Sorry that I didn't reply much, but I've been having a few problems with the computer.

-------------------------------------------------------------

I'll first explain the dimension creation/travel --> Well, with your 'time machine', whatever it may be, you for example enter '1576' as the time to go back in the past. But as soon as you reach the speed of light another dimension is created, instantly, and you are DIRECTLY thrown into it by your time machine...

Freezing- Well... I don't really see this as time traveling, why? Well, you can die during your freezing by a human being and never even reach the future intended. But still, we don't know what would happen to us if we traveled at the speed of light... Maybe we could only survive then since you couldn't breath, if traveling so fast... (I don't know, neither do you all, I'm simply guessing).



- Ruben V.

Dude...that's insane. I'm sorry, but it's insane to say that a whole other dimension would be created when you reached the speed of light. You, yourself, have said you know little about physics or quantum mechanics. I'm telling you now, that is impossible. The two events are entirely unrelated!

By the way, somethings do travel faster than the speed of light. Information of two bonded atoms, for example. When bonded, they always do the opposite of one another, automatically, no matter how far apart. One moves up, the other moves down. Happens instantaneously. They were able to see that this indeed happens instantaneously in the fact that the information between the atoms travels faster than light.

That's why Quantum Theory and Physics are so much fun. They both work, but they both say the other is impossible! ;D

By the way, Ruben, your theory seems to be coming for a perverse (not meant in the usual sense) interpertation of the events in Timeline, where they found a way to tunnel to those alternate realities I was talking about before. But sense they all exist simultaneously, and they're always splitting, they didn't travel through time as much as find their way to the other reality where the split occured.

Read it. Good book, even if impossible.

[Cow-winkle]

Interestingly enough, I read a paragraph on Einstein's Special Theory of Relativity recently. In order to go back in time, one would have to go faster than the speed of light. However, if anyone did, they would have infinite mass, no length and "time" would freeze.

I put "time" in brackets because, if we can't go at or faster than the speed of light, we can't travel back in time. How can time exist if we can't travel in it both ways? I am certain that humans will never be able to travel back through time, if nothing else because we aren't being visited by people from the future.

Theoretically, though, it could be possible to slow down "time" to a point where it would almost seem as if it stopped.

However, it could be possible to travel forward through time. If the way to travel back in time is going really quickly, then the way to go forward in time is to go really slowly. Even then, though, it'd be more of preserving yourself for the future than traveling through it.

Sorry if others have already posted this.

Edit: I just realized something. If anything besudes light went at the speed of light, it would have infinite mass... does that mean everything in the universe would be sucked into it, causing a "big crunch" (as opposed to the big bang) destroying the universe? Just a random thing.

Also, if light is going at the speed of light, why doesn't it seem to have infinite mass? But then, maybe it does... but then, why hasn't the universe collapsed? Eh. I'm too tired for this just now. I'm going to bed.

Edit: Now that I'm awake, I shall comfuse you even more!

I'll try to explain my theory of relativity:

First of all, I don't believe there is any "time" beyond the comprehension of living beings. Still, whoever came up with the idea of measuring "time"was a genius.

Let's suppose Bob and Bill are having a car race. Bill's car goes 40 miles per hour (Slow car...), Bob's goes 200 mph. If Bob looked at Bill's car while they were moving, it wouldn't appear to be moving very much at all.

If, for some reason, Bob's car goes 299,999 miles per hour , everything would appear to have almost frozen except him and the car from his view. Everyone else looking at him would see him going really fast (actually, they probably wouldn't see anything, but let's assume they have very good eyes)

Now, take a fruit fly. On average, they only live for, say, a week. The oldest recorded age for a human is around 120.

Math time:

The fly lives for about 604,800 seconds.

The human lives for about 3,784,320,000 seconds.

Doing the math, one second of a human's life would be like 1 hour and 44 minutes of a fly's life. Flies are usually very fast, whereas our human speed seems normal to us.

Some turtles or tortoises can live for up to 250 years. That's about 7,884,000,000 seconds. Two seconds for us would feel like 1 second for this turtle. Turtles are known for moving slowly. They don't need to move quickly, as they have those 250 years to live, but flies have to move quickly with only the one week. I hope at least someone understands my explaination.

[Deleted]

Mr said:

Interestingly enough, I read a paragraph on Einstein's Special Theory of Relativity recently. In order to go back in time, one would have to go faster than the speed of light. However, if anyone did, they would have infinite mass, no length and "time" would freeze.

I put "time" in brackets because, if we can't go at or faster than the speed of light, we can't travel back in time. How can time exist if we can't travel in it both ways? I am certain that humans will never be able to travel back through time, if nothing else because we aren't being visited by people from the future.

Theoretically, though, it could be possible to slow down "time" to a point where it would almost seem as if it stopped.

However, it could be possible to travel forward through time. If the way to travel back in time is going really quickly, then the way to go forward in time is to go really slowly. Even then, though, it'd be more of preserving yourself for the future than traveling through it.

Sorry if others have already posted this.

Edit: I just realized something. If anything besudes light went at the speed of light, it would have infinite mass... does that mean everything in the universe would be sucked into it, causing a "big crunch" (as opposed to the big bang) destroying the universe? Just a random thing.

Also, if light is going at the speed of light, why doesn't it seem to have infinite mass? But then, maybe it does... but then, why hasn't the universe collapsed? Eh. I'm too tired for this just now. I'm going to bed.

Edit: Now that I'm awake, I shall comfuse you even more!

I'll try to explain my theory of relativity:

First of all, I don't believe there is any "time" beyond the comprehension of living beings. Still, whoever came up with the idea of measuring "time"was a genius.

Let's suppose Bob and Bill are having a car race. Bill's car goes 40 miles per hour (Slow car...), Bob's goes 200 mph. If Bob looked at Bill's car while they were moving, it wouldn't appear to be moving very much at all.

If, for some reason, Bob's car goes 299,999 miles per hour , everything would appear to have almost frozen except him and the car from his view. Everyone else looking at him would see him going really fast (actually, they probably wouldn't see anything, but let's assume they have very good eyes)

Now, take a fruit fly. On average, they only live for, say, a week. The oldest recorded age for a human is around 120.

Math time:

The fly lives for about 604,800 seconds.

The human lives for about 3,784,320,000 seconds.

Doing the math, one second of a human's life would be like 1 hour and 44 minutes of a fly's life. Flies are usually very fast, whereas our human speed seems normal to us.

Some turtles or tortoises can live for up to 250 years. That's about 7,884,000,000 seconds. Two seconds for us would feel like 1 second for this turtle. Turtles are known for moving slowly. They don't need to move quickly, as they have those 250 years to live, but flies have to move quickly with only the one week. I hope at least someone understands my explaination.

I agree with a lot of what you say, except that you made an error. You used the average lifespan of a fly, and the maximum of a human and the turtle. I suggest that you use the average lifespan for all of them, as that would be more statistically correct.

[Cow-winkle]

TheComedian said:

I agree with a lot of what you say, except that you made an error. You used the average lifespan of a fly, and the maximum of a human and the turtle. I suggest that you use the average lifespan for all of them, as that would be more statistically correct.

That's a very good point. I'm not re-doing the whole thing (I'm lazy) but I will admit that was a big mistake.

I hope I made my point, though, sorta'.