## Time travel is possible

• 2,943 Views
• 45 Replies
Gr3ySock
Gr3ySock
• Member since: Aug. 29, 2009
• Offline.
Forum Stats
Member
Level 09
Blank Slate
Response to Time travel is possible 2012-10-09 02:02:56

At 10/8/12 05:20 PM, Raiespio wrote:
This is all based off of the assumption that multiple universes already exist. First off, you'd have hell trying to actually prove this, considering that it's not possible to do so at the moment.

But say there are. There are a (theoretically) infinite amount of parallel universes, one for each decisive choice that happens in a human life. We'll make this assumption for now so I can disprove it in a second. When you make a choice, that universe changes as so, however another universe is created for each of the possible variations in how that choice was made. Since the beginning of time, every choice that has ever been made has caused a branched timeline, and thus a new parallel universe, to form.

This violates conservation of energy, and conservation of mass. This is clearly a no-go. However:

Say that instead of creating a new universe after a choice, you're just simply sent to a different one. An infinite amount of parallel universes have existed since the beginning of time, and when a choice is made, you're simply sent to a convenient one. For whatever reason, we're not at all aware of this. This does not violate conservation of mass or energy, since all the matter and energy in the multiverse has and will always exist.

This would require a few things: First off, the universe would have to be of finite size, and every other universe would have to be as well. After all, it's not possible to travel an infinite distance, right? So all the universes are of finite size, and it's possible to instantaneously travel between them. But this would require information to travel faster than the speed of light (It takes light eight minutes to travel to Earth from the sun, and we don't even know how big the universe might be). So that's a no-go as well. So how can we get around the limit of information traveling faster than the speed of light?

Another dimension of space is the only semi-plausible solution I can think of. Maybe you could take this into string theory or something. I personally don't understand space with any more than 3+1 dimensions, so good luck with that.

There is quite a lot of supporting theories for parallel universes to exist but yes they are just theories i guess, although so is gravity.

Also i don't see how conservation of energy and mass has anything to do with the other universes seeing as it has nothing to do with ours apart from being parallel and a universe.

Why would a new universe just form when a different decision is made. I'm saying what if they already exist just with different possibilities...I'm not saying they cant form but what if they already do exist and every other possible situation that could possibly happen has happened and we are left with our reality.

Not saying your wrong or anything i just find it pretty interesting to think about.

Eat some cake...

Eddmario
Eddmario
• Member since: Jun. 6, 2010
• Offline.
Forum Stats
Member
Level 05
Gamer
Response to Time travel is possible 2012-10-09 02:54:27

It actually is possible, but we need a DeLorean, 1950s police box, and a watch.

Cookie if you get all 3 references at once

Twitter | Deviant Art | Steam | Gamertag: Eddmario
Official MLP: FIM crew. | Sig by Ryan

Letiger
Letiger
• Member since: Aug. 6, 2007
• Offline.
Forum Stats
Member
Level 22
Melancholy
Response to Time travel is possible 2012-10-09 08:00:46

I have a car that travels through time, just like everything else I own. Even now I am time travelling, one planck second into the future at a time. When you say, "time travel," will you at least mention it to be backwards in time or far forwards?

RasmusDyhr
RasmusDyhr
• Member since: Feb. 12, 2009
• Offline.
Forum Stats
Member
Level 19
Game Developer
Response to Time travel is possible 2012-10-09 14:27:52

About the parallel universe thing, I personally don't think the world is like that at all, or at least not as simple as people put it.
First, if a universe is based on our choices, wouldn't that hint at the universe being aware of us, or there being some undiscovered force linked directly to our minds? It would be ironic if the truth were as such, because science normally disproves such ideas.
Second, I don't believe that people actually have genuine choices where all possibilities is a possibility. There will always be something making you choose one thing over another, whether it's your personality or some outside influence.

Just my thoughts on the topic

It's not a bug, it's a feature!

Crazywill
Crazywill
• Member since: Sep. 26, 2004
• Offline.
Forum Stats
Member
Level 42
Blank Slate
Response to Time travel is possible 2012-10-09 14:51:27

Yup, as demonstrated by some guy at 4chan.

The Bird of Hermes is my name, eating my wings to make me tame.

tyler2513
tyler2513
• Member since: Jan. 6, 2009
• Offline.
Forum Stats
Member
Level 33
Gamer
Response to Time travel is possible 2012-10-09 15:19:20

I don't often drive past 87 miles per hour so I don't I'll ever discover it.

DM692
DM692
• Member since: May. 5, 2007
• Offline.
Forum Stats
Member
Level 16
Audiophile
Response to Time travel is possible 2012-10-09 15:52:13

if there's infinite alternate universes it means there's one where time travel is possible because there's infinite fucking universes

according to this theory

Gagsy
Gagsy
• Member since: May. 21, 2006
• Offline.
Forum Stats
Supporter
Level 53
Audiophile
Response to Time travel is possible 2012-10-09 20:48:46

At 10/9/12 08:46 PM, Cordyceps wrote: Okay, I'll tell you what - Answer this for me, and I'll admit I was underestimating you.

What was the purpose of the Schroedinger's cat thought experiment?

To give The Big Bang Theory a running gag joke, obviously.

[I've been wandering round but I still come back to you]

Gr3ySock
Gr3ySock
• Member since: Aug. 29, 2009
• Offline.
Forum Stats
Member
Level 09
Blank Slate
Response to Time travel is possible 2012-10-09 22:30:51

At 10/9/12 02:27 PM, Ahnimal wrote: About the parallel universe thing, I personally don't think the world is like that at all, or at least not as simple as people put it.
First, if a universe is based on our choices, wouldn't that hint at the universe being aware of us, or there being some undiscovered force linked directly to our minds? It would be ironic if the truth were as such, because science normally disproves such ideas.
Second, I don't believe that people actually have genuine choices where all possibilities is a possibility. There will always be something making you choose one thing over another, whether it's your personality or some outside influence.

Just my thoughts on the topic

well what about quantum physics saying anything and everything can happen...we are probably not going to make the same choices in different universes with that rule so every other possibility has happened and we are left with only one possibility which is our reality.

I guess it doesn't matter if parallel universes exist anyway because you can sort of time travel with gravity for instance time is slower at your feet compared to that of your head not by much really but if you pull you feet up to your head wouldn't they have traveled through time? There is also mass distortion of time from black holes.

Eat some cake...

• Member since: Mar. 24, 2006
• Offline.
Forum Stats
Member
Level 02
Blank Slate
Response to Time travel is possible 2012-10-09 22:42:22

At 10/9/12 09:21 PM, Xenomit wrote:
At 10/9/12 09:14 PM, 24901miles wrote: RIP scifi philosophy thread.

I hardly knew ye.
Huh, were you referring to me? Nah, I didn't plan on responding, he's acting high and mighty, and that's hard to respond to, because no matter what your answer is someone can make you look bad.

-User discredits every aspect of your posts and shows that you lock average knowledge on Physics/Quantum Mechanics
-User also showed that you don't understand physics by pointing outt that you fell for one of the largest scientifical misconceptions out there.

"NAH IMMA IGNORE HIM SINCE HE'S ACTING HIGH AND MIGHTY"

Let's ignore everything Einstein said because he's acting weird and suspicious.
Let's ignore everything Copernicus said because he's acting high and mighty about his position

never change NG BBS.

Viva La Liquid Funk Baby. Keep it Mellow for all our sakes.

Gagsy
Gagsy
• Member since: May. 21, 2006
• Offline.
Forum Stats
Supporter
Level 53
Audiophile
Response to Time travel is possible 2012-10-09 22:51:19

never change NG BBS.

You just became my favourite poster.

[I've been wandering round but I still come back to you]

• Member since: Mar. 24, 2006
• Offline.
Forum Stats
Member
Level 02
Blank Slate
Response to Time travel is possible 2012-10-09 23:00:14

At 10/9/12 10:51 PM, Gagsy wrote:
never change NG BBS.
You just became my favourite poster.

Just realized you altered your sig for Halloween. Christ, you've had that sig for years.

Viva La Liquid Funk Baby. Keep it Mellow for all our sakes.

Gagsy
Gagsy
• Member since: May. 21, 2006
• Offline.
Forum Stats
Supporter
Level 53
Audiophile
Response to Time travel is possible 2012-10-09 23:05:00

Just realized you altered your sig for Halloween. Christ, you've had that sig for years.

I've got a Christmas and Snow version too.

[I've been wandering round but I still come back to you]

GettinJiggyWitIt
GettinJiggyWitIt
• Member since: May. 24, 2012
• Offline.
Forum Stats
Member
Level 02
Artist
Response to Time travel is possible 2012-10-09 23:05:31

meh

Raiespio
Raiespio
• Member since: Nov. 24, 2009
• Offline.
Forum Stats
Member
Level 06
Gamer
Response to Time travel is possible 2012-10-11 21:16:30

I know I'm like two days late but whatever.

At 10/9/12 02:02 AM, Gr3ySock wrote: There is quite a lot of supporting theories for parallel universes to exist but yes they are just theories i guess, although so is gravity.

Gravity may be a theory but at least it's a testable one.

Also i don't see how conservation of energy and mass has anything to do with the other universes seeing as it has nothing to do with ours apart from being parallel and a universe.

The first scenario involves the creation of a new universe when a choice is made.

Why would a new universe just form when a different decision is made. I'm saying what if they already exist just with different possibilities...I'm not saying they cant form but what if they already do exist and every other possible situation that could possibly happen has happened and we are left with our reality.

Because of this snippet from the OP:

If all of this is true then technically time travel should be possible because you are only skipping forward and backwards through the 1/infinite situations/possibilities that has to have happened already.

Traveling through these universes at any efficient speed would be impossible because you would have to travel faster than light.
Traveling through these universes at a non-efficient speed... well, the edge of the (observable) universe is about 45 billion light years away.
Furthermore, by the many-worlds interpretation of quantum mechanics (which is similar enough to what you're thinking of), each of the parallel universes would be incapable of communicating with each other.

However, what you (theoretically) could say is that there are an infinite amount of parallel universes already in existence, and every event that's ever happened has a different outcome in a different universe. That, however, doesn't allow for time travel, doesn't change anything about our universe, and still isn't testable.

Miracles happen.

Demonbrunch
Demonbrunch
• Member since: Feb. 10, 2012
• Offline.
Forum Stats
Member
Level 02
Blank Slate
Response to Time travel is possible 2012-10-11 21:56:09

At 10/8/12 12:02 AM, Gr3ySock wrote: Ok so if there are an infinite amount of different universes to the one we live in right now, then there are an infinite amount of possibilities.

"Do I dare disturb the universe?"

...