A time traveler, by definition, travels outside the normal flow of causality. They travel outside time, it is the only way they can move to the past or future. To accomplish this, they must take a supply of time with them, in their time ship, in much the same way that an astronaut or deep sea diver must take air in tanks with them in order to not die. The time traveler, during the trip, must make choices - such as where to land, or what temporal coordinates to set - and in order to make these choices they must have a personal time line of their own within the ship in order to take action at all. When a time traveler lands, they merge with the existing timeline of the universe, and no longer need to live off of the stored time within their ship. They can freely take action. There cannot be a true grandfather paradox. If a person travels back in time and kills their own grandfather, they cannot erase themselves. They can erase the causal chain that would have brought them into existence, true, but - because they are a time traveler, moving outside of normal time - they are not affected by any such change. When they return to their own original time, and step out of their machine and merge with the universal timeline, they would not fade or vanish. They would not need to be in a parallel universe at all. They simply step out into a world, the same world, where their past no longer exists. They are the only being that has knowledge of the previous worldline of the cosmos, and they are a person who now exists devoid of a provable history. They had a history, it simply no longer exists. Their experience and life remain, because they - by definition - traveled outside of time. They become an orphan of causality, a causal orphan. That is all that is required. There is no need for paradox at all. There is no need for additional universes. If you travel outside of normal time, then any change you make in the past cannot erase yourself. Marty McFly, in Back To The Future would not have faded. He simply would have returned to his own time to find that no person remembered or knew him any longer. He would merely become a temporal orphan, but he would not cease to exist just because his personal time merged with the worldline of external reality.
@jennifer reitz but again.... When you leave your time line you are therfore leaving a copy of your time line. Thus, entering a completely new copy of the past. Therefore, what you say is quite accurate, but I'm not sure you mentioned that what you do in this new copy of the world you know, that could make slight changes to the future you knew or possibly huge changes (for example, use your knowledge of the future to be the first person to start up a Netflix, Amazon, UA-cam, Facebook and/or etc), will only affect the future of the copy of the world you're in. The copy of the future you left, will remain the same. So...although technically not a parallel universe, it has the same basis as one. Leading to the question I mentioned earlier. "If leaving the copy of your universe behind, if visiting the past and then returning to your time (future) are you able to coordinate back to your copy of the future or is it impossible, therefore, yet again entering a totally and completely new copy of your time line"? 🙄🤔🤔🤔😁
If it works like that there is no possiblity of knowing what would happen even you come up with a plausible way in theory it would be nice ni impossible to prove because the only way to do so would be to do it yourself
To solve time paradoxes the time travellers not only travel to different time periods but also travel to other universe's. 1:13 That are a copy of our history but only a little bit different.
If your grandpa died because of you,then you wouldn't exist..and if you didn't exist,nobody invents the time machine..if the time machine and you didn't exist,then who killed your grandpa?that means he didn't die and that also means that you exist coz your grandpa didn't die..lol so you go back in time to meet your granpa but he died bc of you so you will never exist again lolol this is an infinite paradox
You cannot erase yourself. You can only erase the chain that brought you into existence, you yourself still exist. The history Still Remains it's just I only you remember it your parents still gave birth to you it's just that now they don't exist anymore because they are dead
Yup, there’s no way you can stop time while traveling, you either get back to your present universe but the time there is still ticking or you get back to where you came before you leave, at the same time and same place but in the different copy of your universe.
I would say their is no past or future anymore, so 60 years in the past is also now. You wouldnt disappear because he would have born your father "always". Also the future happened already now.
But thats not true, you can at least travel into future. Because of einsteins spezielle Relativitätstheorie. Edit: If you travel in space the right way you could get back far in future
i think from my perspective ... any kind of paradoxes indicate that there was insufficient information ... for instance , this video questioned us weather historical background can be altered or not ... but before we think about the time travel question , let we think about the teleportation problem not as singular particle but a human being ... now i am thinking that the real question about this video i supposed not the historical background but the idea about the soul itself ... ahhh ... so many various kind of interesting question within the real of neuroscience ... so my final review about this video was ... if it was paradoxes ... that must be a missing piece of information that not given or shown by nature or other constraints to us ... good video !
THERE YOU GO GUYS, WELL DONE. ive been criticizing most of your philosophical thought videos because of the content and the thought being basic, weak, generic and terribly superficial sometimes. but on this one, exploring multiuniverse and time travel. i love it, for the first time in your series i ended up thinking about the video. great!
I have found time travel debacles like these to be a dumb and counterintuitive view of time travel. Time travelling will make a new universe/timeline? Time travelling is something happening spontaneously like in Back to the Future? A way time travel can exist logically, in one universe or timeline, is that everything has already happened. If you are able to travel forwards in time, the timeline of the universe is predetermined. Then there is no freewill, and this would also mean that all future time travelling adventures have also happened and been predetermined. A logical view of time travel would be that all time travel has already happened. Let's say you chose to time travel and visit yourself an hour ago. This would mean that you already recall being visited by yourself an hour in the future: now an hour has passed and you are going back in time to visit yourself an hour ago. In this thought experiment, your grandfather and you time travelling back in time to meet him has already occurred. There might be photos of you and him that exist in your house due to your future self time travelling. Eventually you will time travel and take those pictures yourself. It is impossible to kill him, as your time travelling self's actions have already occurred and you stand here alive and well today. History is impossible to be changed, utilizing time travel, according to this logic. You could compare it to the bountiful ancient Greek and Roman stories about the Oracle's tellings of fate which always lead to that fate happening. Look at the story of Oedipus, King of Thebes. Oedipus' parents, King Laius and Queen Jocasta of Thebes, see an oracle. They are told that their newborn son Oedipus is fated to kill his father and marry his mother. In trying to prevent this fate, they only lead to it happening. A better example could be the story of Perseus. You could also consider the dillemma of timetravelling back in time to kill baby Hitler. Following the prior logic, either time travel is impossible or there must be historical accounts of the Hitler family trying to fend off time travellers. Or, like in the story of Oedipus, time travel also might have caused the whole Hitler warmongerer ultimate evil dictator debacle in the first place. No matter what, everything that has happened is unchangable. Even if you try, since the history of the universe has already happened (since you can time travel to the future) you are doomed to fail or cause the chain of events that lead to the problem in the first place, or else it would have never happened: but then you aren't time travelling to deal with problems you have never heard of.
I like to think that every possible moment in time exits on its own so the machine would bring me to a time that happened that lead up to me but the new moments i experience have already happened so no paradox
There has been something I have been thinking about. If you traveled a few seconds into the past, and saw past you, who would grow up to travel seconds back in time, could you create an infinite amount of clones? Anyone find anything about this? I have been looking for a while ;_;
No. As long as you don't talk to your younger self, you'd be making a loop, because even if you traveled a few seconds to the past, time keeps moving while you're spying on your younger self until he time travels
Okay, if I went back to me for a while and I did not kill my grandfather and advised him to Investing in a successful company Will there be same paradox
If u kill him in past but when u came back in present he will be there in present.he is dead only for that time.eg if u kill him in 2pm and go back and set time of 2.1 or other time he will be alive.
But if you were to go back in time and kill your own grandfather you would still live except it would split into two timelines with one where you manage to kill your grandfather in another where you didn’t so it would you split into another timeline meaning you wouldn’t be able to race yourself I call it the ( repetitive paradox)
A time traveler, by definition, travels outside the normal flow of causality. They travel outside time, it is the only way they can move to the past or future. To accomplish this, they must take a supply of time with them, in their time ship, in much the same way that an astronaut or deep sea diver must take air in tanks with them in order to not die. The time traveler, during the trip, must make choices - such as where to land, or what temporal coordinates to set - and in order to make these choices they must have a personal time line of their own within the ship in order to take action at all.
When a time traveler lands, they merge with the existing timeline of the universe, and no longer need to live off of the stored time within their ship. They can freely take action.
There cannot be a true grandfather paradox.
If a person travels back in time and kills their own grandfather, they cannot erase themselves. They can erase the causal chain that would have brought them into existence, true, but - because they are a time traveler, moving outside of normal time - they are not affected by any such change. When they return to their own original time, and step out of their machine and merge with the universal timeline, they would not fade or vanish. They would not need to be in a parallel universe at all. They simply step out into a world, the same world, where their past no longer exists. They are the only being that has knowledge of the previous worldline of the cosmos, and they are a person who now exists devoid of a provable history.
They had a history, it simply no longer exists. Their experience and life remain, because they - by definition - traveled outside of time. They become an orphan of causality, a causal orphan.
That is all that is required. There is no need for paradox at all. There is no need for additional universes. If you travel outside of normal time, then any change you make in the past cannot erase yourself.
Marty McFly, in Back To The Future would not have faded. He simply would have returned to his own time to find that no person remembered or knew him any longer. He would merely become a temporal orphan, but he would not cease to exist just because his personal time merged with the worldline of external reality.
@jennifer reitz but again....
When you leave your time line you are therfore leaving a copy of your time line. Thus, entering a completely new copy of the past. Therefore, what you say is quite accurate, but I'm not sure you mentioned that what you do in this new copy of the world you know, that could make slight changes to the future you knew or possibly huge changes (for example, use your knowledge of the future to be the first person to start up a Netflix, Amazon, UA-cam, Facebook and/or etc), will only affect the future of the copy of the world you're in. The copy of the future you left, will remain the same. So...although technically not a parallel universe, it has the same basis as one.
Leading to the question I mentioned earlier. "If leaving the copy of your universe behind, if visiting the past and then returning to your time (future) are you able to coordinate back to your copy of the future or is it impossible, therefore, yet again entering a totally and completely new copy of your time line"? 🙄🤔🤔🤔😁
If it works like that there is no possiblity of knowing what would happen even you come up with a plausible way in theory it would be nice ni impossible to prove because the only way to do so would be to do it yourself
@@jamesjohnson242 every theory is imposible to proof. If you listen to einstein you cant even travel back in time
To solve time paradoxes the time travellers not only travel to different time periods but also travel to other universe's. 1:13
That are a copy of our history but only a little bit different.
If your grandpa died because of you,then you wouldn't exist..and if you didn't exist,nobody invents the time machine..if the time machine and you didn't exist,then who killed your grandpa?that means he didn't die and that also means that you exist coz your grandpa didn't die..lol so you go back in time to meet your granpa but he died bc of you so you will never exist again lolol this is an infinite paradox
RedSwag 56 but what if that wasn’t his grandpa? He never met him
isnt every paradox infinite though
Wow this is a good explanation. Thanks you
You cannot erase yourself. You can only erase the chain that brought you into existence, you yourself still exist. The history Still Remains it's just I only you remember it your parents still gave birth to you it's just that now they don't exist anymore because they are dead
Sooooooooo, the big question is...when you return to your time, are you now in a copy of your universe, no longer in the one you left? ;)
Make sense
Yup, there’s no way you can stop time while traveling, you either get back to your present universe but the time there is still ticking or you get back to where you came before you leave, at the same time and same place but in the different copy of your universe.
I would say their is no past or future anymore, so 60 years in the past is also now. You wouldnt disappear because he would have born your father "always". Also the future happened already now.
But thats not true, you can at least travel into future. Because of einsteins spezielle Relativitätstheorie.
Edit: If you travel in space the right way you could get back far in future
i think from my perspective ... any kind of paradoxes indicate that there was insufficient information ... for instance , this video questioned us weather historical background can be altered or not ... but before we think about the time travel question , let we think about the teleportation problem not as singular particle but a human being ... now i am thinking that the real question about this video i supposed not the historical background but the idea about the soul itself ... ahhh ... so many various kind of interesting question within the real of neuroscience ... so my final review about this video was ... if it was paradoxes ... that must be a missing piece of information that not given or shown by nature or other constraints to us ... good video !
here after Tenet
Same
You and me both
THERE YOU GO GUYS, WELL DONE. ive been criticizing most of your philosophical thought videos because of the content and the thought being basic, weak, generic and terribly superficial sometimes. but on this one, exploring multiuniverse and time travel. i love it, for the first time in your series i ended up thinking about the video. great!
I have found time travel debacles like these to be a dumb and counterintuitive view of time travel. Time travelling will make a new universe/timeline? Time travelling is something happening spontaneously like in Back to the Future? A way time travel can exist logically, in one universe or timeline, is that everything has already happened. If you are able to travel forwards in time, the timeline of the universe is predetermined. Then there is no freewill, and this would also mean that all future time travelling adventures have also happened and been predetermined. A logical view of time travel would be that all time travel has already happened.
Let's say you chose to time travel and visit yourself an hour ago. This would mean that you already recall being visited by yourself an hour in the future: now an hour has passed and you are going back in time to visit yourself an hour ago.
In this thought experiment, your grandfather and you time travelling back in time to meet him has already occurred. There might be photos of you and him that exist in your house due to your future self time travelling. Eventually you will time travel and take those pictures yourself. It is impossible to kill him, as your time travelling self's actions have already occurred and you stand here alive and well today.
History is impossible to be changed, utilizing time travel, according to this logic. You could compare it to the bountiful ancient Greek and Roman stories about the Oracle's tellings of fate which always lead to that fate happening. Look at the story of Oedipus, King of Thebes. Oedipus' parents, King Laius and Queen Jocasta of Thebes, see an oracle. They are told that their newborn son Oedipus is fated to kill his father and marry his mother. In trying to prevent this fate, they only lead to it happening. A better example could be the story of Perseus.
You could also consider the dillemma of timetravelling back in time to kill baby Hitler. Following the prior logic, either time travel is impossible or there must be historical accounts of the Hitler family trying to fend off time travellers. Or, like in the story of Oedipus, time travel also might have caused the whole Hitler warmongerer ultimate evil dictator debacle in the first place. No matter what, everything that has happened is unchangable. Even if you try, since the history of the universe has already happened (since you can time travel to the future) you are doomed to fail or cause the chain of events that lead to the problem in the first place, or else it would have never happened: but then you aren't time travelling to deal with problems you have never heard of.
why is you tube blocking your subscibe list and why arent i allowed to bell (follow) you
I like to think that every possible moment in time exits on its own so the machine would bring me to a time that happened that lead up to me but the new moments i experience have already happened so no paradox
There has been something I have been thinking about. If you traveled a few seconds into the past, and saw past you, who would grow up to travel seconds back in time, could you create an infinite amount of clones? Anyone find anything about this? I have been looking for a while ;_;
No. As long as you don't talk to your younger self, you'd be making a loop, because even if you traveled a few seconds to the past, time keeps moving while you're spying on your younger self until he time travels
Okay, if I went back to me for a while and I did not kill my grandfather and advised him to Investing in a successful company
Will there be same paradox
This is the shii I love
who wrote Johnny b Goode?
This follows movie time travel logic so *yes* it’s a good philosophical question, but nothing about time travel can really proven
What if that wasn’t his grandpa?
LAUGHS IN PRESENTISM
If u kill him in past but when u came back in present he will be there in present.he is dead only for that time.eg if u kill him in 2pm and go back and set time of 2.1 or other time he will be alive.
the solution to this paradox is that ur just adopted
but if your parents arent born, who adopted you?
Cherry Sausages holy soap
@@roni6658 your parents DID give birth to you, they just simply dont exist anymore.
But if you were to go back in time and kill your own grandfather you would still live except it would split into two timelines with one where you manage to kill your grandfather in another where you didn’t so it would you split into another timeline meaning you wouldn’t be able to race yourself I call it the ( repetitive paradox)
Maybe he would not die 'always'
Time travel isn't possible though..
What if you became the grandfather because you kill him?
:O
Stop imagining stupid generation z's.
Grandfather paradox is wrong and it's fake