Is time travel possible? Discuss.
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Vicki
Herbal Alchemist
I watched Michio Kaku discuss this subject on The Science Channel, and his theory was interesting. He speculated that if a person were able to go back in time, that time itself would protect itself. It would do so by sending the time traveler back to an alternate reality in the past. That way any actions by the time traveler would not affect the future.
He also stated that he did believe that time travel would be possible in the not so distant future, and I agree with him.
He also stated that he did believe that time travel would be possible in the not so distant future, and I agree with him.
I haven't seen that, Vicki, but that's a really interesting theory! I love how simply going on a weird and tangential line of thinking leads to logical consistency in philosophy. After all, there's no way we can prove that time travel hasn't been done and alternate dimensions haven't been created to deal with this.
However, it seems that if a scientist were to invent a 'time travel machine', he or she would (in following with proper experimental procedure) document his or her attempt to travel back in time, and we would have a record in this dimension of that attempt. So, it follows that time travel has not yet been achieved. Interesting thoughts!
However, it seems that if a scientist were to invent a 'time travel machine', he or she would (in following with proper experimental procedure) document his or her attempt to travel back in time, and we would have a record in this dimension of that attempt. So, it follows that time travel has not yet been achieved. Interesting thoughts!
To may way of thinking, not based on any other theories other than my own, time travel is possible, but.....you can ONLY change the present. If you travel back in time, that time then becomes the present and is no longer the past.I just got out of a class on all this stuff, which is why it's on my mind. We talked about that a little bit, lwien--I remember it as 'personal' vs 'external' time. Your personal time is always in the present, but from the view of others you've moved back in time. Makes for some weird inconsistencies.
I.e. Bill was born in 2000. He travels back in time in 2018 to 1999, then impregnates Sue. Sue then gives birth to Bill in 2000. Wait...
Never quite got my head around that one. XD I think I finally decided that from Bill's point of view he was born in 1981, but from everyone else's he was born in 2000.
I.e. Bill was born in 2000. He travels back in time in 2018 to 1999, then impregnates Sue. Sue then gives birth to Bill in 2000. Wait...
Never quite got my head around that one. XD I think I finally decided that from Bill's point of view he was born in 1981, but from everyone else's he was born in 2000.
OhTheAgony
here for the chicks
I don't think so. If it were Sheldon Cooper would have already figured it out by now, and since nothing happened during Leonard's interview...
durp
durp
OhTheAgony
here for the chicks
That was nothing like what you said above, good sir.
I fucking love that ^^ smiley
edit: never mind, I'm to intoxicated to read apparently. plus I was basically just fucking with you. or trying to at least. I should probably go to bed now.
I fucking love that ^^ smiley
edit: never mind, I'm to intoxicated to read apparently. plus I was basically just fucking with you. or trying to at least. I should probably go to bed now.
QuantumTimeSpace
Hashtronaut
I am indeed a licensed and trained time-traveler. Usually I travel forward linearly at exactly 60 seconds per minute, but occasionally I change gears, or even throw it in reverse.
All joking aside though, I did have an experience once that I can only describe as a time-loop. As if some cosmic editor literally reached down and snipped about 1.5 seconds worth of my reality at either end, away from the rest of everything else, and taped that 1.5 second's head and tail together, and rolled it around my brain like a wheel, for EVER. If, that is 1.5 seconds could last forever.
IMO time and what it does has as much to do with our perception as it does with the laws of the universe, much like the rest of reality.
All joking aside though, I did have an experience once that I can only describe as a time-loop. As if some cosmic editor literally reached down and snipped about 1.5 seconds worth of my reality at either end, away from the rest of everything else, and taped that 1.5 second's head and tail together, and rolled it around my brain like a wheel, for EVER. If, that is 1.5 seconds could last forever.
IMO time and what it does has as much to do with our perception as it does with the laws of the universe, much like the rest of reality.
lwien
Well-Known Member
That was nothing like what you said above, good sir.
I fucking love that ^^ smiley
edit: never mind, I'm to intoxicated to read apparently. plus I was basically just fucking with you. or trying to at least. I should probably go to bed now.
LOL !! That's funny, 'cause I just spent 10 minutes trying to figure out of you were right.
OhTheAgony
here for the chicks
LOL !! That's funny, 'cause I just spent 10 minutes trying to figure out of you were right.
That is funny indeed
I wonder though, weren't you traveling through time just there..?
You must have been if you're as high as I am.
I think I should really go to bed now...
edit:
That's ^^ actually not the real dr. Who.
The real one went back in time to work as a vet along side James Harriot.
(told you I should have just gone to bed when I still could)
t-dub
Vapor Sloth
Dr. Kaku is one of my favorite physicists. His popular books really "break it down" for me, the amateur scientist. Here is an article at his website tilted: The Physics of Time Travel <---- link ---
"Then in 1963, Roy Kerr, a New Zealand mathematician, found a solution of Einstein’s equations for a rotating black hole, which had bizarre properties. The black hole would not collapse to a point (as previously thought) but into a spinning ring (of neutrons). The ring would be circulating so rapidly that centrifugal force would keep the ring from collapsing under gravity. The ring, in turn, acts like the Looking Glass of Alice. Anyone walking through the ring would not die, but could pass through the ring into an alternate universe."
I am trying to envision what that ring of neutrons might look like . . .
"Then in 1963, Roy Kerr, a New Zealand mathematician, found a solution of Einstein’s equations for a rotating black hole, which had bizarre properties. The black hole would not collapse to a point (as previously thought) but into a spinning ring (of neutrons). The ring would be circulating so rapidly that centrifugal force would keep the ring from collapsing under gravity. The ring, in turn, acts like the Looking Glass of Alice. Anyone walking through the ring would not die, but could pass through the ring into an alternate universe."
I am trying to envision what that ring of neutrons might look like . . .
Vicki
Herbal Alchemist
As far as I am concerned, David Tennant was the best Doctor, ever. Christopher Eccleston was pretty good too.
Vicki
Herbal Alchemist
Food for thought...
Say you travel back in time and try to kill your grandfather. This is impossible simply because you existed to attempt it in the first place. If time travel is physically possible, then, do we have free will?
And LOL at this thread
See Grandfather Paradox.
t-dub
Vapor Sloth
What about Peter Davidson? Loved the stalk of celery!As far as I am concerned, David Tennant was the best Doctor, ever. Christopher Eccleston was pretty good too.
I liked Tom Baker too . . . guess I'm getting old 
David Tennant is really good . . .
Vicki
Herbal Alchemist
Narrow it down even more...favorite episode?
I'm gonna have to say 'Blink'
Edit: to be fair, I haven't watched much Dr. Who...something I plan on changing this summer!
OMG, that episode freaked me out!!! To this day, I'd love to smash any weeping angel statue.
My favorite episode is probably "Doomsday."
Synopsis:
Earth becomes the battlefield for the greatest and deadliest war of all time, as the Daleks and the Cybermen clash with the whole universe at stake. The Doctor and Rose, reunited with old friends and Cybermen experts Mickey and Jake, race to find a way to bring the war to an end before it brings about the destruction of the whole of space and time. But the Doctor soon faces an even bigger dilemma - could ending the war mean the death of Rose?
t-dub
Vapor Sloth
"Blink" was the first one that came to my mind also!!! It still creeps me out when I think about those statues . . .
Another one I love is the 2 parter "The Impossible Planet" & "The Satan Pit" where it turns out that Satan is imprisoned inside a hollow planet orbiting a black hole . . .
Another one I love is the 2 parter "The Impossible Planet" & "The Satan Pit" where it turns out that Satan is imprisoned inside a hollow planet orbiting a black hole . . .
Vicki
Herbal Alchemist
These are probably my two favorite episodes because they have so many characters....Captain Jack, Sarah Jane, Rose, Mickey, Martha, (K-9 )....loved them both. "The Stolen Earth," and "Journey's End." I especially like "Journey's End" because Rose gets her own Doctor that can grow old with her!!
The Stolen Earth
The return of an old enemy leaves Earth along with 26 other planets stolen from their places. As the Doctor and Donna look for the whereabouts of Earth, former companions of the Doctor assemble a resistance against the new Dalek Empire.
Journey's End
In the wake of Davros' threat to destroy the existence of the Universe itself, the Doctor's companions unite to stop the Dalek empire. Which one will die by the prophecies and what will the fate be for the Doctor?
BTW...did anyone catch Torchwood, "Children of Earth" and "Miracle Day." Both were great, but "Children of Earth" really bothered me, a lot. I love John Barrowman. Every time I hear "Single Ladies," I can't get THIS out of my head.....
)....loved them both. "The Stolen Earth," and "Journey's End." I especially like "Journey's End" because Rose gets her own Doctor that can grow old with her!! The Stolen Earth
The return of an old enemy leaves Earth along with 26 other planets stolen from their places. As the Doctor and Donna look for the whereabouts of Earth, former companions of the Doctor assemble a resistance against the new Dalek Empire.
Journey's End
In the wake of Davros' threat to destroy the existence of the Universe itself, the Doctor's companions unite to stop the Dalek empire. Which one will die by the prophecies and what will the fate be for the Doctor?
BTW...did anyone catch Torchwood, "Children of Earth" and "Miracle Day." Both were great, but "Children of Earth" really bothered me, a lot. I love John Barrowman. Every time I hear "Single Ladies," I can't get THIS out of my head.....
djonkoman
Well-Known Member
I think everything is determined. I don't believe in the existance of a free will, everything you do is influenced by previous experiences, personality, stimuli etc. those in turns again were caused by persons influenced by the same influences, and so on.
but then I have a problem with my logic if time travel is possible. that would mean every time traveler is bound to travel back and do exactly as they do, changing nothing since they were supposed to do what they did. but then in the time between there are conseqences with a cause in the future. altough current physics does believe the cause can come after the effect, it conflicts with my logic.
this is if I aproach it from my regular logical aproach. but if I get a bit more speculative, I can expand it a bit. since everything is bound to happen, you could say time isn't linear. since at the time the first thing was caused(the famous problem, turtles all the way down or the effect without cause), everything from that moment on was determined. and so our linear view/interpretation of time is just an illusion, everything happened at once, and happens at once, and will happen at once. and so timetravel becomes meaningless, as you can't travel. this goes together with the feeling I had on shrooms, I felt like I was everything, everything was me, the past present and future didn't exist but were actually one. spiritual feeling.
but I usually adopt my logical theory and conclusion as my actual opinion, and disregard my more speculative and spiritual side as entertainment, fun to think about things like that but it doesn't get me anywhere.
and so I conclude that I'm undecided, but logically don't believe timetravel is possible, unless I see it
another hypothetical situation to think about:
imagine, there is a kind of timebomb that when detonated travels back in time a set amount of time and then explodes. it's left in the same place for 2 hours, then set for 1 hour and detonated. but this means it will destroy itself, not exist in the future and so not able to travel back and destroy itself
but then I have a problem with my logic if time travel is possible. that would mean every time traveler is bound to travel back and do exactly as they do, changing nothing since they were supposed to do what they did. but then in the time between there are conseqences with a cause in the future. altough current physics does believe the cause can come after the effect, it conflicts with my logic.
this is if I aproach it from my regular logical aproach. but if I get a bit more speculative, I can expand it a bit. since everything is bound to happen, you could say time isn't linear. since at the time the first thing was caused(the famous problem, turtles all the way down or the effect without cause), everything from that moment on was determined. and so our linear view/interpretation of time is just an illusion, everything happened at once, and happens at once, and will happen at once. and so timetravel becomes meaningless, as you can't travel. this goes together with the feeling I had on shrooms, I felt like I was everything, everything was me, the past present and future didn't exist but were actually one. spiritual feeling.
but I usually adopt my logical theory and conclusion as my actual opinion, and disregard my more speculative and spiritual side as entertainment, fun to think about things like that but it doesn't get me anywhere.
and so I conclude that I'm undecided, but logically don't believe timetravel is possible, unless I see it
another hypothetical situation to think about:
imagine, there is a kind of timebomb that when detonated travels back in time a set amount of time and then explodes. it's left in the same place for 2 hours, then set for 1 hour and detonated. but this means it will destroy itself, not exist in the future and so not able to travel back and destroy itself