Time Machines will never be invented.

The current time is living proof. The precise moment it is created, thousands would have traveled through every single dimension of time. We would instantly know it exists as if it were there while we grew up. People would have sent it to the Dinosaur ages, 1800's, pre-WW's, 1990's, etc. We would all know of its existence, because at some point in the future someone will travel to a time in our lives.

Unless of course, the moment it has been invented, the government strictly bans and prohibit all activities. But then what would it be used for? Only to prevent massive attacks? So we would have been living in current peace without knowing somebody came back and prevented a disaster? But what about the other disasters? The small-scale disasters had to be let go so there is some genuineness in humanity, that evil will always subexist?

Another possibility is that time travel is one way. The machine sends the person back, but the machine stays put. Maybe there are time travelers among us, banished from the future? Or are they secretly guiding us? Or maybe they are not allowed to speak, or their lives would be ended?

Other than the 2 possibilities above and maybe others, the current situation should let us know that even by 2300, time machines will not be invented. But it were to be invented, imagine the destruction and confusion it would lead to. It would definitely be banned and held under the world's greatest securities, as there are lots of evil men who can create potential tragedies with the time machine.

Is it possible? Impossible? Or invented by just prohibited?

too late.

[url]http://www.youtube.com/watch?v=5nCriLcHX5c&feature=fvst[/url]

[COLOR="White"]j/k...it's a hoax.[/COLOR]

backwards time travel is pretty much impossible, but forward time travel is probable and there are theoretical examples of forward time travel already existing. That make your theory about time travel incorrect :)

my theory is ufo's = time macines

[QUOTE=MMM]my theory is ufo's = time macines[/QUOTE]
possible. this theory would make the religious community happier.

[QUOTE=MMM]my theory is ufo's = time macines[/QUOTE]

Thats an interesting points. Perhaps the UFOs we see are actually our descendants, and that aliens do not exist at all.

Backwards time travel may still be possible, if there are limitations. For example, maybe time travel will be made but can only transport people from time travel machine to time travel machine. So if time travel is invented in say 2079, then maybe people could travel from the future back in time to that date, but not before since there is no platform to be sent back to. Another, less plausible one would be if time travel has a limitation on how far back you can go. So again, if time travel is invented in 2079 and time travel only goes back a max of a year, then the earliest we would see people from the future would be 2078.

There is another possibility, which is simply that time travelers have come back and not enough people believed them. Sure, we'd maybe catch on if tons of time travelers came back, but it could take a shit load of energy and/or work for each time 1 person is sent back in time. How many people get to step foot on the moon? Not many. Time travel could have been invented in the future, but with no way of making it available to the public (or intentionally kept from public use due to potential dangers). If it was used and regulated, then it is very likely the only people who have come back in time were special agents of some kind or scientists who are not allowed to reveal to our time that they are from the future.

[QUOTE=Myth]Backwards time travel may still be possible, if there are limitations. For example, maybe time travel will be made but can only transport people from time travel machine to time travel machine. So if time travel is invented in say 2079, then maybe people could travel from the future back in time to that date, but not before since there is no platform to be sent back to. Another, less plausible one would be if time travel has a limitation on how far back you can go. So again, if time travel is invented in 2079 and time travel only goes back a max of a year, then the earliest we would see people from the future would be 2078.
[/QUOTE]
Interesting idea of time travel only allowed between machines. Then I would assume when the original machine is invented, it keeps a HUGE amount of DATA about the current world.. think all of google's servers. Every single data of the world is kept.. maps, names, people, animals, movies, pictures, ALL. And 50 years later we are able to sent a person's mind.. into a body of that world of data? That could be the closest we get to time travel.. although it is actually just sending someone into a reality of the past. Doing anything there would not change anything in the future.

However that allows someone to go back and see his love ones, change his regretted actions, and it would affect THAT world's future. Pretty neat for that time traveler then huh?

[QUOTE=MMM]my theory is ufo's = time macines[/QUOTE]

could be. But what are their purposes? What is the purpose of time travel? To fix things that have went incredibly wrong in human history? Like if we invent one now, it would be to go back and fix the hollocaust before it occurred? Or is it simply for observation? Meaning history scholars of the past travel back in UFO's, and secretly study.

buncha potheads. the lot of ya.

Since my birth, I have travelled more than 21 years into the future. So I can testify that it is indeed possible.

My bed also allows me to travel 8 hours into the future at any time.

[quote=Faptastrophe]Since my birth, I have travelled more than 21 years into the future[/quote]bullshit. where's the GIFs?

seriously though, well sorta, you know time travel is a real possibility the day a sports bettor is the richest man on the planet.

What about those 3 time machines?

[IMG]http://moviesmedia.ign.com/movies/image/article/107/1079949/time-machines-through-er-time-20100325065957774.jpg[/IMG]

[IMG]http://murphymac.com/slib/images/time-machine-observations.jpg[/IMG]

[IMG]http://nathan-lee.com/blog/wp-content/uploads/2010/11/eaboothpromo2.jpg[/IMG]

[QUOTE=Faptastrophe]Since my birth, I have travelled more than 21 years into the future. So I can testify that it is indeed possible.

My bed also allows me to travel 8 hours into the future at any time.[/QUOTE]
You did not travel though. You moved along with time.

Actually I would agree in some sense this is a form of time travel. If it was only your own perception of time and not others, why isn't it time travel? In an ideal time travel, you move back in time, while the people in that world and your future world continue their own perception of time. The only one that changes is yours - you are the only one who knows you time traveled, and can see the difference.

So I guess technically that feels like a time travel, although there's probably a flaw somewhere to distinguish it.

Probably the fact that you gave up time as well in order to travel. An ideal time travel is where you suddenly pop up 20 years later. In a sleep, you give up 8 hours, wake up 8 hours into the future, therefore not gaining any.

[QUOTE=Boomerang]You did not travel though. You moved along with time.

Actually I would agree in some sense this is a form of time travel. [B]If it was only your own perception of time and not others, why isn't it time travel?[/B] In an ideal time travel, you move back in time, while the people in that world and your future world continue their own perception of time. The only one that changes is yours - you are the only one who knows you time traveled, and can see the difference.

So I guess technically that feels like a time travel, although there's probably a flaw somewhere to distinguish it.

Probably the fact that you gave up time as well in order to travel. An ideal time travel is where you suddenly pop up 20 years later. In a sleep, you give up 8 hours, wake up 8 hours into the future, therefore not gaining any.[/QUOTE]

traveling at light speed slows down time relative to the earth. so if you travel for 1 year (by your watch) 100 years will have passed back on earth (i don't know if it is 100 but it'd be a big difference). so you can sort of time travel into the future (if light speed travel were possible), but you can't come back.

traveling at the speed'o'light (which should be a fast food chain name) is impossible by the understanding of modern physics.

which isn't MY understanding of modern physics. but i read blogs.

[QUOTE=InspiredLebowski]traveling at the speed'o'light (which should be a fast food chain name) is impossible by the understanding of modern physics.

which isn't MY understanding of modern physics. but i read blogs.[/QUOTE]

i was reading this today, only skimmed it but it seemed pretty interesting.

[url]http://www.extremetech.com/extreme/140635-the-downside-of-warp-drives-annihilating-whole-star-systems-when-you-arrive[/url]

[quote=miller-time]i was reading this today, only skimmed it but it seemed pretty interesting.

[URL="http://www.extremetech.com/extreme/140635-the-downside-of-warp-drives-annihilating-whole-star-systems-when-you-arrive"]http://www.extremetech.com/extreme/140635-the-downside-of-warp-drives-annihilating-whole-star-systems-when-you-arrive[/URL][/quote]made it to the second paragraph before I felt stupid

[QUOTE=miller-time]traveling at light speed slows down time relative to the earth. so if you travel for 1 year (by your watch) 100 years will have passed back on earth (i don't know if it is 100 but it'd be a big difference). so you can sort of time travel into the future (if light speed travel were possible), but you can't come back.[/QUOTE]
I understand traveling in the speed of light would be groundbreaking for human technology and would be revolutional, but I don't see the positives of traveling forward in time however.

There are people who woke up from 20 years of coma, which is basically like traveling in time for them, other than the part where their body deteriorates. But what is there to gain from traveling to the future? Everything you known is already known, you can't take advantages from traveling forward. You are the one who loses knowledge of what happens in between.

here are the merits of traveling backward
-prevent tragedies
-get rich predicting lotteries, events
-bring future technologies to the past
-invent things before they were invented
-see love ones in the past and talk to them
-perhaps change history by triggering an action?
-etc etc etc

But traveling forward the only merits I see are:
-having your body at a distant future
-being able to see future technology

There are ways we could achieve this now too. Freeze someone or put them to sleep in a state that prelongs their body. Wake them up later. But as seen above, there is nothing to be gained from this. You don't live forever, you just delay it.

Basically it's possible to bend time by gravity and speed(actually happens all the time, even on earth). Those are principles of the relativity, but bending is not time traveling per se(twin paradox, et al). The problem that comes at hand of this is first of all those thought experiments don't deal with acceleration and deceleration, they work for small masses like myons, who'd basically vanish before they hit earth, but still are measurable on the ground, because they travel at relativistic speeds.

So if an object of the mass of an average human could travel at relativistic speed without any form of acceleration/deceleration, which is basically impossible, they could travel foward through time, because a few minutes in their lifetime could be years on a reference system which doesn't travel at the same speed(twin paradox, again).

Backwards travel would basically need a donutstructured universe(Homer Simpson's theory), which restarts at every loops end with a parallel universe and you'd need wormholes to travel to that exact point in "time".

Classic physics don't allow any time travel since time there is absolut and "einsteinian/planckian" physics don't allow backwards time travels.

[QUOTE=QuebecBaller]What about these 4 time machines?

[IMG]http://moviesmedia.ign.com/movies/image/article/107/1079949/time-machines-through-er-time-20100325065957774.jpg[/IMG]

[IMG]http://murphymac.com/slib/images/time-machine-observations.jpg[/IMG]

[IMG]http://nathan-lee.com/blog/wp-content/uploads/2010/11/eaboothpromo2.jpg[/IMG]

[IMG]http://www.igormovie.co.uk/wp-content/uploads/2012/10/The-tub-in-Hot-Tub-Time-M-001.jpeg[/IMG]
[/QUOTE]

:D

if a time machine is invented.. would it be possible to swap your wife every 10 years for the 22 years old version? :lol

[QUOTE=ripthekik]if a time machine is invented.. would it be possible to swap your wife every 10 years for the 22 years old version? :lol[/QUOTE]

or when they invent reverse aging , which is a biliion times more likely than time travel

[SIZE="4"]If you are from the future and are reading this, please get in touch with me. I promise and guarantee I won't tell anyone any of your secrets or anything about you. I [B]never[/B] break any promises or guarantees. I have a favor to ask, and I would appreciate it from the bottom of my heart.

Saturday, November 17, 2012. 2:17 pm. East Coast of United States of America, ~35.43 miles SouthWest of New York City. I await you, friend.[/SIZE]

[QUOTE=QuebecBaller]What about those 3 time machines?[/QUOTE]

[IMG]http://1.bp.blogspot.com/_mpBGa4P5jUo/TEBh97fPfII/AAAAAAAAE5A/RnL1cyA8ctM/s1600/primer2.jpg[/IMG]

There's various ways. If time travel is ever invented, then it would be in the distant future, and many other advances would have been made by then. There could be time travelers all over the place, but with their advanced technology, we don't know they're there. They could have us all brainwashed into thinking whatever they want us to. Maybe time travel involves alternate dimensions and they can't visit us but alternative versions.

There could be various limitations. Maybe only your consciousness could be sent back, so that you could only observe and not be able to physically interact with anything. Maybe you can only go back for a very limited amount of time. Maybe you die shortly after making the trip. Maybe the trip alters your brain, and wipes your memories/makes you insane/whatever and you end up as a John Doe that either doesn't know anything or is sent to the looney bin. Maybe it's very costly/risky/unstable to do it so it's only been done a very few amount of times and everything is done under very tight wraps.

No, OP you are a little off base.

While I do think that traveling backwards in time is not going to happen ever, your logic for it isn't quite there yet. You see you would only be able to travel back as far as when the machine was first turned on. So if it was invented in 2013 the furthest back you would ever be able to go is 2013. Were it possible they wouldn't come visit us because they couldn't.

As discussed here and previously time travel forward is possible, but again I doubt we'll ever truly reach the potential to do it.

[QUOTE=QuebecBaller]

[IMG]http://nathan-lee.com/blog/wp-content/uploads/2010/11/eaboothpromo2.jpg[/IMG][/QUOTE]

They're making a third Bill and Ted.

[QUOTE=Overdrive]Basically it's possible to bend time by gravity and speed(actually happens all the time, even on earth).[/QUOTE]
Hmm? Bent spacetime is gravity... Mass and energy bend spacetime; not speed or gravity(gravity is bent spacetime!)
[QUOTE] Those are principles of the relativity, but bending is not time traveling per se(twin paradox, et al). The problem that comes at hand of this is first of all those thought experiments don't deal with acceleration and deceleration, they work for small masses like myons, who'd basically vanish before they hit earth, but still are measurable on the ground, because they travel at relativistic speeds.


So if an object of the mass of an average human could travel at relativistic speed without any form of acceleration/deceleration, which is basically impossible, they could travel foward through time, because a few minutes in their lifetime could be years on a reference system which doesn't travel at the same speed(twin paradox, again).[/QUOTE]
:eek: There is so much wrong with this. You need to go back to your intro physics text. You CAN travel forward in time without relativistic speeds and with acceleration. We are [B]always[/B] travelling into the future. Where did you get this misinformation?
[QUOTE]Backwards travel would basically need a donutstructured universe(Homer Simpson's theory), which restarts at every loops end with a parallel universe and you'd need wormholes to travel to that exact point in "time".

Classic physics don't allow any time travel since time there is absolut and "einsteinian/planckian" physics don't allow backwards time travels.[/QUOTE]
General relativity has nothing that forbids close timelike curves, but their existence implies exotic forms of matter. However closed timelike curves and chronology projection conjectures are still an open question, and saying general relativity forbids them is completely unfounded and definitely wrong.

You have to realize that even if time travel would be invented, people from the future wouldn't change history or tragic events from the past because the consequence of doing so would be unknown. For all we know, stopping hitler by killing him at an early age would lead to a nuclear war between USA and Russia which would then result in the destruction of all humanity, including the ones from the future.

Also, traveling to the future would be better since you would know exactly what will happen and you could come back to the present and prevent it.

I'd guess humanity would end before we could get to time travel. I think we're more likely to destroy life than to travel back in time.

[QUOTE=bagelred]They're making a third Bill and Ted.[/QUOTE]
let me guess...it'll be bill and ted's kids this time around.

[QUOTE=jbot]let me guess...it'll be bill and ted's kids this time around.[/QUOTE]

Last I heard they visit themselves in different timelines in the future to see if they ever did created that greatest rock song ever.

I am from the future. It is currently +5 Eastern Time here.
Please let me play you the song of my people: [url]http://www.youtube.com/watch?v=nQB4nAjZIdE[/url]

[QUOTE=Boomerang]I understand traveling in the speed of light would be groundbreaking for human technology and would be revolutional, but I don't see the positives of traveling forward in time however.

There are people who woke up from 20 years of coma, which is basically like traveling in time for them, other than the part where their body deteriorates. But what is there to gain from traveling to the future? Everything you known is already known, you can't take advantages from traveling forward. You are the one who loses knowledge of what happens in between.

here are the merits of traveling backward
-prevent tragedies
-get rich predicting lotteries, events
-bring future technologies to the past
-invent things before they were invented
-see love ones in the past and talk to them
-perhaps change history by triggering an action?
-etc etc etc

But traveling forward the only merits I see are:
-having your body at a distant future
-being able to see future technology

There are ways we could achieve this now too. Freeze someone or put them to sleep in a state that prelongs their body. Wake them up later. But as seen above, there is nothing to be gained from this. You don't live forever, you just delay it.[/QUOTE]


There is one very basic flaw with time travelling to the past. It is impossible (supposed to be) and not compatible with the laws of physics.

[QUOTE=shlver]Hmm? Bent spacetime is gravity... Mass and energy bend spacetime; not speed or gravity(gravity is bent spacetime!)[/quote]

Maybe I worded it wrong, I'm no native speaker, but basically you slow down time, by going at a high speed(time dilatation) or in the vincinity of huge masses(time dilatation by gravity) and masses basically create gravition fields.

[quote]:eek: There is so much wrong with this. You need to go back to your intro physics text. You CAN travel forward in time without relativistic speeds and with acceleration. We are [B]always[/B] travelling into the future. Where did you get this misinformation?[/quote]

We are travelling into the future, yes, but basically time travel is based upon time jumps or going faster in time than the outside witness.

[quote]
General relativity has nothing that forbids close timelike curves, but their existence implies exotic forms of matter. However closed timelike curves and chronology projection conjectures are still an open question, and saying general relativity forbids them is completely unfounded and definitely wrong.[/QUOTE]

Yeah it implies it, but it's just something scientists expect so we can keep up with our current paradigm.

[QUOTE=brantonli]There is one very basic flaw with time travelling to the past. It is impossible (supposed to be) and not compatible with the laws of physics.[/QUOTE]

what laws of physics is it actually incompatible with?

[QUOTE=heyhey]what laws of physics is it actually incompatible with?[/QUOTE]


No idea hence why I said supposed to be. As far as I know, the only way for time travel back in time is to the earliest point that the time machine was built, but since we don't have any.....I did do a course on special relativity, which showed time travel forward is perfectly possible, but none of the maths suggested that somehow you could have negative time.

[QUOTE=brantonli]No idea hence why I said supposed to be. As far as I know, the only way for time travel back in time is to the earliest point that the time machine was built, but since we don't have any.....I did do a course on special relativity, which showed time travel forward is perfectly possible, but none of the maths suggested that somehow you could have negative time.[/QUOTE]

isn't time just a vector in most physics equations? I don't see any reason why it can't be negative in certain solutions

but i don't think that tells us anything about the plausibility of time travel. I am really ignorant about physics though

are there any good pop physics books that people recommend?

The concept of time travel is pretty ridiculous IMO. Going backwards is without a doubt impossible and thoroughly preposterous. And going forward might be possible in a way thats really an illusion.

Time is a human concept created to explain our reality of there being a past and a future. Logically, time isn't a thing, the universe doesn't know time, particles atoms and all that dont know time. They just exist. There is just no way you can program into a machine a "time" and be able to go there. There is nothing in physics that suggests such a thing would be possible. Its completely a sci fi movie concept.

[QUOTE=heyhey]what laws of physics is it actually incompatible with?[/QUOTE]

[URL="http://www.youtube.com/watch?v=RSopk6h1LAs"]http://www.youtube.com/watch?v=RSopk6h1LAs[/URL]