Time travel will never be possible.

[TheDoctor455]

Ummm... You know, even if the time paradox does happen, all that will happen from a terrorist murdering early mankind is that the whole sequence of events leading up to said terrorist killing everyone's ancestors is an infinite loop in which the terrorist would be forever murdering all of mankind and none of us would ever know. You see, if the terrorist kills that critical a part of his own ancestry, he will cease to exist, and would thus have never been born to be able to travel back in time to murder his (and everyone else's) ancestors.

Well... unless you had some means of artificially maintaining your own reality around you... I'm not going to explain that one; if you want to find out, just read more Grim Jack comics.

 

[The Ruler of Nosgoth]

Look at the atom bomb. It had the potential to wipe out half a country with one blast, yet scientists still built it and thought it was a fucking fantasic idea. Kim-Jong-Il now has an ass-load of nukes and plans to blow up the US and probably then the world. Just because it's a bad idea doesn't mean it won't happen. Common sense has no place in science.

 

[Mjolnir07]

I think if someone messed with time it already happened because it was meant to happen. No new timeline no new messups.

Man that is a brilliant point. Intentional alteration of time to where no time travel is ever invented.

 

[Simriel]

The Doctor Disagrees.

 

[BaronXS]

I think if someone messed with time it already happened because it was meant to happen. No new timeline no new messups.

Man that is a brilliant point. Intentional alteration of time to where no time travel is ever invented.

So you're saying that time itself won't allow time travel?

 

[TerribleTerryTate]

What if travelling back in time and doing something is actually part of the timeline and them not going back in time fucks everything up because they didn't do what they needed to do... like in Doctor Who, when he goes back or forward in time preventing aliens and stuff from messing up history.

My head just exploded. Too much thinking. Thank you.

 

[Danny Ocean]

Actually, yes. If a tree falls in the forest and noone is around to hear it than it does not make a sound, not a fact, but the basis of your logic. Because if hours, minutes and seconds ar our measurements of time, then if nothing which could perceive units of measurement for time existed then it would be immeasurable and therefor would not exist.

Except that isn't the basis of my logic. I'm one of the people that says it does make a sound, it's just that no-ones around to hear it. If something exists, but no-one is around to measure it, then it still exists, it's just that no-one's around to measure it.

I can't think of any other way to put it.

You misunderstand, time is just a concept while the present is reality, the future is nothing. All minutes and hours do is name when the present occurs.

Oh I seeeeee. That makes sense, actually. Where's that video... Turn of annotations.

 

[Mjolnir07]

Look at the atom bomb. It had the potential to wipe out half a country with one blast, yet scientists still built it and thought it was a fucking fantasic idea. Kim-Jong-Il now has an ass-load of nukes and plans to blow up the US and probably then the world. Just because it's a bad idea doesn't mean it won't happen. Common sense has no place in science.

That reminds me of the H-bomb, for obvious reasons, and the Large Hadron Collider.

When they tested the H-bomb they weren't 100 percent center it wouldn't ignite or simply annihilate all the hydrogen in the atmosphere and kill everyone on the planet instantly, but they did it anyway.

They have a few educated guesses as to what the LHC will do, and ninety percent of them involve the destruction of the earth and possibly the solar system. But they're going to do it anyway.

 

[ffanxii4ever]

Isnt a guy making a time machine that can take you to any time between the present and the time that the machine was switched on? And if you switch it off and then on again, it would be reset.

I heard the guy talking about it a couple of years ago, it was interesting.

yep : http://www.physorg.com/news63371210.html
I've met the guy also, and he definitely is not a crackpot
He is also a professor at my school

 

[Undeed]

There are theories that state that every action that can be taken is taken, and each variation results in a different time stream. There are theories that state a specific number of parrallel universes as being anywhere between five and 56 and infinity. There is the concept of a stable time loop, wherein you go back because you are supposed to go back, and if you hadn't/don't/won't there would be disastrous results. There will likley be a time police, who hop about locking up brigands and righting temporal wrongs, because before we have the technology to move through time we will likely have the tech to look through time. Then of course there's the theory that everything is a continuous loop that has been done and will be done forever and we'll never know it.

 

[Mjolnir07]

I think if someone messed with time it already happened because it was meant to happen. No new timeline no new messups.

Man that is a brilliant point. Intentional alteration of time to where no time travel is ever invented.

So you're saying that time itself won't allow time travel?

Or perhaps that someone somewhere in the time line after it was invented went back to do the universe a favor and made certain that it was never invented in the first place. This would of course take place in our future, but said hero's past.

 

[BaronXS]

Well, I guess this is one of those mysteries that we'll have to wait and see how it plays out.

 

[oliveira8]

I actually care more for the infinite improbability calculator than the TARDIS. It actually follows a pristine and possibly accurate logic.

To paraphrase the hitchhikers guide to the galaxy:

"Hero's chance of survival is 0.1E7739955139, hero's ex girlfriends phone number is 7739955139, the likelihood of this coincidence is infinitely improbable, hero survives."

The improbability drive of the Heart of Gold was based on an actual physics theory and so is most of Adams improbabilities through out the series.

 

[Inconnu24]

The only thing you proved is that the measurement of time would not exists without people; not time itself. Even if everyone in the world dies all of the bodies will still decompose, mountains will still crumble, and rivers will still flow. Why is this? Time.

Organic matter decomposes because it is eaten by other organic matter. Mountains crumble because of erosion. Rivers flow because of gravity. My original post comes from the perspective that there are only three dimensions, not four.

Basically, it's like saying without people there will be no mass because there will be no Kg. Because kilogram does not exists outside our minds.

Mass, density, and volume are detectable, measurable aspects of the Universe. Time can only be measured as arbitrary human designations. Time is only theoretical.

 

[Lukeje]

They have a few educated guesses as to what the LHC will do, and ninety percent of them involve the destruction of the earth and possibly the solar system. But they're going to do it anyway.

Who's 'they'? And where in hell do you get your figure of 90% from? Most of the guesses about what will happen come from the giant particle collider above our heads that hasn't yet given rise to any kind of apocalyptic scenario...

 

[Ph33nix]

Your theory has one gaping hole in it. Lets use the classic killing Hitler problem. If you where to kill Hitler as he was born and change history so that the Holocaust never happened there would have been no reason for you to go back in time and kill Hitler there for you wouldn't have so the Universe always finds a way to stop you from changing history. But I do agree time travel is impossible.

 

[Mjolnir07]

Actually, yes. If a tree falls in the forest and noone is around to hear it than it does not make a sound, not a fact, but the basis of your logic. Because if hours, minutes and seconds ar our measurements of time, then if nothing which could perceive units of measurement for time existed then it would be immeasurable and therefor would not exist.

Except that isn't the basis of my logic. I'm one of the people that says it does make a sound, it's just that no-ones around to hear it. If something exists, but no-one is around to measure it, then it still exists, it's just that no-one's around to measure it.

I can't think of any other way to put it.

You misunderstand, time is just a concept while the present is reality, the future is nothing. All minutes and hours do is name when the present occurs.

No no! You miss my point, I understand that you are one of those people who believe it does make a sound, and I'm not even disagreeing with you. Just stating that your logic inherently implies that perception is the basis for measurement because we measure things, so if no-ones around to measure it then there is no perception of it at all and therefore it doesn't exist, nothing does.
Nothing. Not black or white, not light or dark or the absence of black white light or dark.

Unless you religiously believe in an afterlife, in which case things would remain in movement after the complete destruction of everything evAr.

 

[JC175]

Because if it WERE, the public would eventually get their hands on it, which means millions of people would have the ability to change history to their will. Now, eventually, some idiot/crazy person/terrorist is going to go back in time to where the first humans were, and kill them, or something along those lines. That would cause a major paradox, seeing as the killer's ancestry line would never exist. So as long as the universe as we know it isn't destroyed, we can be certain that time travel will never be possible, at least for humans.

This isn't the only example to prove my point, there are an infinite amount of possible paradoxes, thanks to the butterfly effect.

Your thoughts on this matter?

See, there are plenty of arguments against time travel, but the parallel universe theory could make it possible, because they'd only destroy all of mankind in an alternate universe.

But I try not to think about it too much, it makes my head hurt.

 

[Danny Ocean]

Well, I guess this is one of those mysteries that we'll have to wait and see how it plays out.

But speculating is fun!

 

[BaronXS]

Well, I guess this is one of those mysteries that we'll have to wait and see how it plays out.

But speculating is fun!

Very fun, that's why I started this thread. My mind has been blown by what I've learned today. I'll seriously have to think about it more often.