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re: Time travel question paradox, based off Looper (movie spoilers inside)
Posted on 6/4/17 at 7:39 pm to DarthRebel
Posted on 6/4/17 at 7:39 pm to DarthRebel
The horse's name was Friday
0
Posted on 6/4/17 at 9:28 pm to DarthRebel
Makes more sense to me that your old self wouldn't disappear because you killed your younger self. It would just man you created an alternate universe in which you died young, so now your older sold would be a dimensional traveler as well as a time traveler.
Besides, space and time are intricately connected. If it were possible to travel backwards in time you'd also have to travel in space if you wanted to stay on the Earth. Not only is the Earth rotating the sun, but the sun is also rotating the center of the galaxy, and the Milky Way is flying thru space at a million or so miles an hour. The Earth doesn't occupy the same point in space that it did 20 years ago, so if you simply went 20 years in the past you'd appear in outer space.
Besides, space and time are intricately connected. If it were possible to travel backwards in time you'd also have to travel in space if you wanted to stay on the Earth. Not only is the Earth rotating the sun, but the sun is also rotating the center of the galaxy, and the Milky Way is flying thru space at a million or so miles an hour. The Earth doesn't occupy the same point in space that it did 20 years ago, so if you simply went 20 years in the past you'd appear in outer space.
Posted on 6/4/17 at 9:34 pm to DarthRebel
Ah yes, that fateful day when JFK was shot with the bulletproof glass top on the limo.....wait a minute....
Posted on 6/4/17 at 9:50 pm to fightin tigers
If that's Around the Horn's Jackie MacMullun
The OP is correct
The OP is correct
Posted on 6/4/17 at 10:31 pm to DarthRebel
I love the picture of the guy in the sunglasses at the 1940s bridge opening being cited as evidence of time travel. Somehow people don't realize that sunglasses had been around since the 1920s, two decades before that bridge opening occurred.
This post was edited on 6/4/17 at 10:32 pm
Posted on 6/4/17 at 10:38 pm to rpg37
I travel forward in time at a speed on 60 seconds per minute. I have travelled forward in time about 20 seconds since I began typing this post.
Posted on 6/4/17 at 10:41 pm to Merck
quote:
Earth doesn't occupy the same point in space that it did 20 years ago, so if you simply went 20 years in the past you'd appear in outer space.
Excellent point. The Earth is never in the same place twice, so that would make it near impossible to time travel on the face of the Earth. You would need a static spaceship to make this happen and then find Earth to land on. Even then you would need some sort of near light speed to catch Earth. Looking it up - when you add up earth, solar system and galactic speed the earth is traveling around 2,724,666 MPH.
Posted on 6/4/17 at 10:42 pm to fightin tigers
Why is that curly haired women who the arrow seems to be pointing to evidence of time travel?
Posted on 6/4/17 at 10:48 pm to DarthRebel
But according to B&T the circuits of time can connect to any place at any time. So it's not your specific spot where you're leaving from that matters if you are traveling to a certain place at a certain time.
Posted on 6/4/17 at 10:55 pm to UFFan
Posted on 6/4/17 at 11:02 pm to rpg37
quote:
Time travel backwards is not possible. Only forward.
We don't know for sure backwards isn't possible. Forward, obviously we do.
Posted on 6/5/17 at 12:09 am to DarthRebel
quote:
Makes since
Posted on 6/5/17 at 7:11 am to DarthRebel
How exactly would one talk on a cell phone prior to the construction of any cellular infrastructure?
Posted on 6/5/17 at 9:00 am to TheArrogantCorndog
quote:
The movie style of time travel isnt, but time dilation due to gravitational forces has been proven over and over again to be accurate.. so, in basic terms, it does
Time dilation is not the same as what we generally think of as time travel. "Time travel" is being able to access a point other than the "present" in a time line. Time dilation just changes the speed at which you experience time, you still are stuck in the present even if it happens to you slower from an outside perspective.
For "time travel" to be real would require the multiverse to be real which would allow for multiple timelines. If that were true then all time travel does is create new information like different drafts of a story.
quote:
in reality (because we know time travel exists) would all the damage be done. It should automatically morph to the alternate timeline where nothing happened. No silver/gold bars on the ground and the little boy does not have a gunshot wound.
I can't remember the details of Looper much at all, but I think what you're saying is why did it take multiple steps to change time instead of just jumping to the fully changed timeline? The answer is that for everyone else in the "final" timeline that would be the case, but assuming the time traveler is essentially the author of these new timelines, he'd experience the multiple steps he has to take to get to the final draft. Once he's in the final draft you would think that his experiences should line up with those of someone who's only experienced the final draft. We might "experience" time travel every day and not know it.
Posted on 6/5/17 at 9:48 am to DarthRebel
quote:
To recap - In the end young Bruce Willis kills himself to prevent future Bruce Willis from killing the little boy. When he kills himself, future Bruce Willis instantly disappears. Makes since, he was dead and would not be able to come back to the past. In the movie though the damage done by the future Bruce Willis remains.
In movie world that is OK, however in reality (because we know time travel exists) would all the damage be done. It should automatically morph to the alternate timeline where nothing happened. No silver/gold bars on the ground and the little boy does not have a gunshot wound. Then we go back to if future Bruce Willis cannot come back, how does all this start since he was the catalyst to the events.
Think of time as T1. This timeline contains the normal course of events of Young Bruce Willis becoming Old Bruce Willis then going back in time to kill the boy's mom.
At the point Young Bruce kills himself he creates T2 where the mom lives, making a difference in the boy's life.
Young and Old Bruce are tied together because Time considers them to be the same person just from different points along the same timeline (T1). At the point of change (Young Bruce killing himself) Time then becomes T2 with T1 as its history. Although there will be no Old Bruce in T2, there was one in T1 and thus his actions (and the results of such) remain.
Posted on 6/5/17 at 9:55 am to Bard
That's a good movie.
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