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Solution to the Grandfather Paradox 

minutephysics
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What if you went back in time and killed your own grandfather? Would you still be born? Or would you have thus killed yourself? Thanks to Google #sciencegoals for sponsoring this video!
Link to the previous MinutePhysics video: • Solution to the Grandf...
If you could travel back in time, and you killed your grandfather, would you be killing your future self? What do physics, complexity theory, and computer science have to say about this famous murderous time-travel paradox?
Scott Aaronson Notes that discuss time travel and computation, computational complexity, closed timelike curves, and the grandfather paradox: www.scottaaronson.com/democrit...
Technical paper that discusses the same thing: arxiv.org/abs/quant-ph/0502072
Thanks to everyone who supports MinutePhysics on Patreon! / minutephysics
Link to Patreon supporters here: www.minutephysics.com/supporte...
Music by Nathaniel Schroeder, / drschroeder
MinutePhysics is on Google+ - bit.ly/qzEwc6
And facebook - / minutephysics
And twitter - @minutephysics
Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
Created by Henry Reich

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12 май 2016

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Комментарии : 17 тыс.   
@awomanshootingsomething5811
@awomanshootingsomething5811 3 года назад
This would be the worst way to find out you were adopted.
@neatchip123
@neatchip123 3 года назад
One of the cleverest comments 😂.
@nichsulol4844
@nichsulol4844 3 года назад
@@neatchip123 oxidation reduction need add complex law theory physics
@soumyasishbhattacharyya2805
@soumyasishbhattacharyya2805 3 года назад
Lmao
@sureshms3071
@sureshms3071 3 года назад
😂😂😂
@novablanco6472
@novablanco6472 3 года назад
Lmao
@hanseleve
@hanseleve 4 года назад
The easy answer: Two timelines The hard answer: this video The complicated lore answer: You ARE your grandfather
@LumaSloth
@LumaSloth 4 года назад
Good one
@obviously1429
@obviously1429 4 года назад
What?
@imaginarystranger1974
@imaginarystranger1974 4 года назад
@@obviously1429 Futurama, that's what.
@bsgfan1
@bsgfan1 4 года назад
“I did do the nasty in the past-y”
@sun5705
@sun5705 4 года назад
what if i was a test tube baby?
@TravelBass
@TravelBass Год назад
I think that, the most "practical" solution would be that the moment "you" leave your current timeline and so become a "time traveler" then you become immune to this kind of paradox. As soon as you leave your own timeline for the first time, you do not belong anymore to that timeline and not to any other timeline either. You basically become a timeless entity. So, you going back in time to kill your grandfather, would just result in killing your entire family except of you. If you then would get back on your original timeline, your family won't be there anymore, and never have been, but you would still be there. Another solution would be that "the universe always finds a way". So, if you go back in time and kill your grandfather, then you won't be born and so, "someone else" would be born, and that someone is the one that actually goes back in time to kill you grandfather. If you do not kill your grandfather, then this other "someone else" wouldn't be born.
@NazirLer
@NazirLer Год назад
After 20 minutes of reading the comments i think this solution is the best one yet
@djjay7777
@djjay7777 Год назад
I like that idea. To add to it I personally think there are an infinite amounts of timelines and if you time traveled to kill your grandfather, you simply end up in one of thosr timelines and murder him and it would have been his fate to die by your hands and like you said you'd end up still being alive but as a timeless entity.
@darlenesmith5690
@darlenesmith5690 Год назад
@@NazirLer Actually, the most practical solution is that the past does not exist. There is no place to go to. The future also does not exist. There is only the now. The ever changing present. For one thing, the Law of Conservation of Energy should prevent all time travel anyway. But with the concept of only the ever changing now existing, all time travel paradoxes do not exist because time travel itself does not exist. If this is true in reality, then there might not be other dimensions and there definitely would not be other times. Time would then not be a dimension like many people view it. We would still have the abstract concept of time that we use, but it wouldn't really exist in reality. Viewed mathematically, time would be a point, not a line.
@bikebudha01
@bikebudha01 10 месяцев назад
i think you are right on the first half of what you say. Which i think is how they explained it in endgame. Your past is your past. It's already happened. Going back to the past and making changes is in your future. So you were born, you went back to the past, killed your grandfather - but you'd still be there. Wether you stayed in the past and just lived to the present - or if you time traveled back to the present.
@user-dm2pc7dh6g
@user-dm2pc7dh6g 8 месяцев назад
I like both of these. My solution is that when you go back, the universe itself prevents a paradox by making it impossible for you to kill your grandfather. Kind of like a "Final Destination" in reverse.
@pedroalonso7606
@pedroalonso7606 Год назад
Another solution: each time you travel to the past, your grandfather is moved to the future.
@JerryDawg
@JerryDawg Год назад
Wait shit thats genius-
@Muwulo
@Muwulo Год назад
WELL IMMA KILL MA DAD
@mirahogwards_art
@mirahogwards_art Год назад
Wait wha-
@Failzz8
@Failzz8 Год назад
That's kinda just the multiverse explanation though
@atharvtiwari6789
@atharvtiwari6789 Год назад
Wait i didn't get it what ?!
@atomicnolxix
@atomicnolxix 2 года назад
They always say "What if you killed your Grandfather" But they never say "Why would you kill your Grandfather"
@Kabir_777
@Kabir_777 2 года назад
😔
@FirstnameLastname-rc4xq
@FirstnameLastname-rc4xq 2 года назад
Reality is often disappointing 😔
@viswajithj788
@viswajithj788 2 года назад
Hmm..."How would you kill your Grandfather".. Just saying...
@perfectheart7010
@perfectheart7010 Год назад
*_Why not?_*
@randomnickify
@randomnickify Год назад
Well, for example if you realized your original family name was Hitler :D
@PhantomLizzard77
@PhantomLizzard77 8 лет назад
I had a found a few errors in your understanding; however over all you are somewhat correct I'm totally kidding, I have no idea what is happening in this video
@GAZAMAN93X
@GAZAMAN93X 8 лет назад
lol
@GazzyD
@GazzyD 8 лет назад
This comment will have me laughing for days.
@kitkatvonkitkat5454
@kitkatvonkitkat5454 8 лет назад
L O A D I N G...brb after 10 years
@barontv450
@barontv450 8 лет назад
lol
@danielsarwar7352
@danielsarwar7352 8 лет назад
lool
@rayray117
@rayray117 Год назад
You know you’re old when a small kid shoots you saying you’re his grandad.
@SillySyrup
@SillySyrup Год назад
You could argue that if you did have access to a time machine, it is impossible to kill your grandfather because you already failed. Many people forget that if something happened or didn't happen in the past, then it must stay that way because that moment was solidified into history. You can't "go back and change" the past. For example, if you went back and talked to your past self, then you would have already experienced that at a younger age.
@stardrake691
@stardrake691 9 месяцев назад
@SillySyrup That brings up another question. If you were visited by your future self, and he said that you will create a time machine and travel to talk to your younger self when you get order, do you have a choice? Can you avoid creating a time machine and do something else? if you did that, then your future self wouldn't have been able to talk to you when you were young, and thus no time travel.
@SillySyrup
@SillySyrup 9 месяцев назад
@@stardrake691 No, you wouldn't have a choice. That means that you would think about it and decide to create it eventually.
@itsnotderryl
@itsnotderryl 8 месяцев назад
So you just really can't break through it?
@SillySyrup
@SillySyrup 8 месяцев назад
@@itsnotderryl Not exactly. No magic force is stopping you. However, some plausible, physical force will stop you from completing the goal. Like I said, you've already failed.
@itsnotderryl
@itsnotderryl 8 месяцев назад
@@SillySyrup ohh
@TheMinecraftMan757
@TheMinecraftMan757 8 лет назад
_brain.exe has stopped working_
@PranshuNigam11
@PranshuNigam11 8 лет назад
lolllll
@AnotherCuber5050
@AnotherCuber5050 8 лет назад
+TheGamerMan757 Have you tried turning it off and turning it on?
@shaunhopkins2130
@shaunhopkins2130 8 лет назад
Mind blows up like the Death Star
@azyfloof
@azyfloof 8 лет назад
+TheGamerMan757 "Process BRAIN.DLL halted unexpectedly" I get that error a lot on these videos. Still waiting for a patch :(
@samanthathepinkjaguar4606
@samanthathepinkjaguar4606 8 лет назад
+TheGamerMan757 reloads brain.exe and uploads understanding.exe to brain.exe and saves brain.exe
@Ajaykumar-vt3lu
@Ajaykumar-vt3lu 3 года назад
After watching tenet, youtube recommends grandfather paradox.
@sinxnq
@sinxnq 3 года назад
Yeah😂
@aftabchohan945
@aftabchohan945 3 года назад
Same here😂
@andreyion9456
@andreyion9456 3 года назад
Yea youtube knows maybe u have wached tenet explained videos om ytb and the alghoritm knows what u wach and recomends this video
@hiteshsharma526
@hiteshsharma526 3 года назад
Same
@user-fp1op5dn2j
@user-fp1op5dn2j 3 года назад
Same here
@felixdaniel9472
@felixdaniel9472 Год назад
Another Paradox: If Pinnochio said "My nose will grow now", What happens?
@jan_Masilijun
@jan_Masilijun Год назад
his nose grows after an amount of time, so the 'now' part is false but the nose still grows
@Nathan-qq3mt
@Nathan-qq3mt Год назад
@@jan_Masilijun What about "My nose will grow soon"?
@jan_Masilijun
@jan_Masilijun Год назад
@@Nathan-qq3mt his nose grows after a very long amount of time
@user-xf9hc4or9e
@user-xf9hc4or9e 4 месяца назад
I think I have the answer! If Pinocchio had the ability to predict the future, then he would know what he was talking about. But when he says something based on nothing, it doesn't mean anything. It cannot be considered a lie if he himself does not know what the truth is, therefore it is only a statement. But let's say Pinocchio has the ability to predict the future and he says the same thing, in this case his nose will grow because that's what he sees. But probably for another reason unrelated to the lie, just to make this prophecy come true even though no lie was told. They will find another reason for this to happen, a whole plot will be created about this strange phenomenon.
@davewilliam5228
@davewilliam5228 2 месяца назад
Grandfather Paradox state's that person builds time travel machine. Travels back in time. Person kills his younger grandfather before younger grandfather meets his younger grandmother. Father is not born and baby person is not born. Person is not travelling back in time.
@watchtowerguy2299
@watchtowerguy2299 Год назад
Both of the solutions you used involved a different form of time than the paradox uses. The first one, you used was the one where you travel back in time, and that creates a new reality, the second one, was the one where there are two interconnected reality’s, where your actions in the past, only effect one reality. The grandfather paradox, uses the form of time travel, where there are no others reality’s in existence, or that can be made. If you use a different form of time, it’s not actually the grandfather paradox, it’s not even a paradox.
@claytoncourtney1309
@claytoncourtney1309 Год назад
Why does it have to "create a new reality"? Can't you just travel to an already existing universe? If you can imagine all of the possible timelines already existing and we are just in one of them THEN time travel could be seen as BOTH time travel and universe travel. So you can not co back in your OWN timeline but you can go back in in time in a timeline that is near ours. In the 2nd timeline you do not get born because you killed your grandfather in that one. There are still billions of timeline where you are born and billions more where you are not but only one has your existence removed based on your actions.
@watchtowerguy2299
@watchtowerguy2299 Год назад
@@claytoncourtney1309 two different ways to look at what you are saying, one still being that you create a new universe (reality). And if you are travellinh to a separate universe, then you arent actually killing your grandparents, you arw killing somebody else's grandparents causing no effect. I cant explain exactly how it works, but you cannot travel into a different reality, that is in a different time line. Another way to look at what you have said with the timelines, is that you go back in time and alter the timeline through killing your grandparent, two different things that could happen is either the exact same paradox, or creating a new time line in which you dont exist, but for that to happen you must have survived in your reality meaning that the grandfather paradox not happen.
@davewilliam5228
@davewilliam5228 2 месяца назад
Grandfather Paradox state's that person builds time travel machine. Person travels back in time. Person kills his younger grandfather before younger grandfather meets younger grandmother. Father is not born and baby person is not born. Person is not travelling back in time.
@haljoa5165
@haljoa5165 7 лет назад
Someone complained about something about this comment, now no one shall know what it originally was
@Catcat55566
@Catcat55566 7 лет назад
haljoa fuck this is genius
@victormatterstorm196
@victormatterstorm196 7 лет назад
*slow clap
@feelsoevil
@feelsoevil 7 лет назад
*insert funny pun here*
@leviverbeek02
@leviverbeek02 7 лет назад
he wouldnt be killing his own grandfather then right?
@terrencefernandez3681
@terrencefernandez3681 7 лет назад
if that were to be the case ur life would still dramticly change because if u kill the grandfather of the person who adopted u then the person who adopted u wouldntv of been born therefor u wouldnt of been adopted by that person meaning u would be adopted by someone else. assuming that there is another person who adopts u witch would most likely be the case but since we dont acctuly know then anything could happen. i guess.
@noobxgod1968
@noobxgod1968 3 года назад
GrandFather is dead and alive at the same time, Schrödinger's CAT : Ah Shit, Here we go again!
@pierreicard
@pierreicard 3 года назад
Finally a worthy opponent
@Gambit24
@Gambit24 3 года назад
:(:
@shiaeliminator6484
@shiaeliminator6484 3 года назад
It's funny he threw away the logical solution of "it's a different timeline" just to give the same answer by they're both timelines at the same time, wich is basically the same. And just another version of the cat, yes🤔
@frikiboss1239
@frikiboss1239 3 года назад
@@shiaeliminator6484 It's you diferent situations. In first one the two timelines are independent and in the superposition one they are related. It's not that there ate two timelines but only one in two simmultaneous states. If you interact with one state the other will be affectef too (from a quantum physics point of view).
@dazaiosamu7518
@dazaiosamu7518 3 года назад
Watch Dark ,, you can understand it ,,
@Tysto
@Tysto 9 месяцев назад
I like to imagine that a time machine would only be able to place you back in time on a path that does not create a paradox. After all, it must be able to “see” into the past. You could do anything you want except things that result in you or the time machine not existing. This creates interesting story possibilities, like you fail to kill a villain & later learn he was your own great-great-grandfather, so of COURSE you failed.
@davewilliam5228
@davewilliam5228 2 месяца назад
Grandfather paradox state's that person builds time travel machine. Person travels back in time. Person kills his younger grandfather before younger grandfather meets younger grandmother. Father is not born and baby person is not born. Person is not travelling back in time.
@h.a.z.m.a.t5072
@h.a.z.m.a.t5072 Год назад
I believe what would happen is that your grandfather would die and then you would continue existing. So if you were to go back to the present then you would spontaneously appear out of nothing. The way I look at this is to look at the timeline as some sort of word document. The original text said that your grandfather survives, but then you went back in time and made an edit. I don’t really know how to express this theory, it’s hard to put it in words. Another way to look at it is the following scenario. There is a division of soldiers and their major general orders them to attack a nearby enemy base. Then the major general decides to at the enemy base is too well defended and orders the soldiers to retreat. Which order will the soldiers listen to. The most recent one.
@electrocubic5116
@electrocubic5116 Год назад
It is funny to imagine people watching you appear out of thin air 😂. We can say it is sort of like "overwriting" your past. If you time travel to the past, it becomes your new future, where you co-exist with the past people and become a part of your past. But idk how all this would affect a person's age? Would it remain the same or increase according to how far back you time travel to. This stuff is pretty crazy tbh.
@datboi42
@datboi42 4 месяца назад
@@electrocubic5116I think it would just remain the same. Like you would age at the same rate
@davewilliam5228
@davewilliam5228 2 месяца назад
Grandfather Paradox state's that person builds time travel machine. Person travels back in time. Person kills his younger grandfather before younger grandfather meets younger grandmother. Father is not born and baby person is not born. Person is not travelling back in time.
@xoocit
@xoocit 3 года назад
I was explaining this to my friend and his grandfather walked in🤦🏻‍♂️
@omega-man1736
@omega-man1736 3 года назад
I know you are lying son, don't worry your secret is safe with me
@UECAshutoshKumar
@UECAshutoshKumar 3 года назад
@@omega-man1736 😂
@somejellyartywitchyhuman485
@somejellyartywitchyhuman485 3 года назад
Lol
@YoloLollipops
@YoloLollipops 3 года назад
Kill the grandfather
@Drew_Hurst
@Drew_Hurst 3 года назад
Awkward!
@williamsfamily6211
@williamsfamily6211 7 лет назад
solution: you are now a murderer
@champagnemoneyabuelo
@champagnemoneyabuelo 7 лет назад
Achievement Unlocked! xD
@SpykoYT
@SpykoYT 7 лет назад
Greg Williams solution nothing ever happens and it loops again and again unless some other time traveler comes and tells you you created a paradox
@williamsfamily6211
@williamsfamily6211 7 лет назад
Gamerale2006 so if a random person tells you cool you just created science! you will stop murdering grandpas?
@SpykoYT
@SpykoYT 7 лет назад
idk his choice he can either continue forever or realize the dumb mistake he made
@picklemcgee2194
@picklemcgee2194 7 лет назад
If you killed your grandpa then wouldn't your grandma end up with someone different, which then ends up with your parents being different, which then in turn only makes you look like a different person then you were?
@_BONAL_
@_BONAL_ Год назад
I had 3 solutions to this paradox. 1. When you travel back in time you create another timeline 2. When you travel back in time, you travel as a ghost so that you can't interfere with the past. 3. Anything you did in the past couldn't interfere with critical situations that happened already in the present because it was already destined to happen, meaning you would always fail trying to kill your father by whatever you tried to do because that would change the destiny... Of course the other solution was that the future could be change like you told in the beginning
@anticorncob6
@anticorncob6 11 месяцев назад
I'm creating a fictional universe where backwards time travel is possible, and I'm going with your #2. It or something similar to it seems to be the only logical way to make it work without creating multiple timelines or sacrificing free will.
@DarkXypher
@DarkXypher 9 месяцев назад
4. You're adopted
@hasnaindev
@hasnaindev 7 месяцев назад
There are NO paradoxes. You're born, a living being with cells and organs, your parents or grandparents being alive or dead has no bearing on whether you exist or not because you already do. Let's say, you go back in time to kill your grandfather. Your grandfather would die but you simply won't vanish. The collection of cells that is you will still be there. Let's say you travel back to your own time now, your family just wouldn't exist nor would the world know you exist. Just a man with no paper trail or documents appeared out of nowhere. There wouldn't be another YOU either that can come up and stop you because, in this singular timeline, you're the only you that exist. This leaves no room for paradoxes. Of course, there might be many things I might have not considered but feel free to discuss them with me.
@ricksummerfield784
@ricksummerfield784 6 месяцев назад
It doesn't create a paradox, it just makes you a shitty grandchild
@akshlo879
@akshlo879 5 месяцев назад
​@@hasnaindevyou really gave a generic explanation without considering any time travel or time
@youareivan
@youareivan Год назад
I remember reading a collection of short stories I'd checked out from the local library when I was a kid. I'm pretty sure it was a collection of unfinished tales by C.S. Lewis, but I don't remember the title and a quick google search didn't turn up anything. Anyway, the book included a story about time travel where the main character suggests that you can't send something back in time because the atoms that make that thing up in the present already exist in the past being something else. For example the atoms that make up a chair now were part of a tree in the past, so sending that chair back in time would add a chair's worth of extra mass to the total mass of the universe which is a big no no.
@tothewin5388
@tothewin5388 Год назад
So would the universe break or what
@chrisa3199
@chrisa3199 7 лет назад
today I woke up and said to myself, " I will not learn any physics today" and what do you know... I still didnt learn any physics
@artespinoza9242
@artespinoza9242 7 лет назад
Yay summer!
@philipshin7016
@philipshin7016 7 лет назад
Haha! Fuck you school (even though you're a privilege and I do enjoy you quite a lot at times but still fuck you)
@faboitas
@faboitas 7 лет назад
you're god damn right!
@Maru-nu7ll
@Maru-nu7ll 7 лет назад
DerpMonsterProductions h
@jefferyhoffman6567
@jefferyhoffman6567 6 лет назад
DerpMonsterProductions i
@skefle6596
@skefle6596 3 года назад
I love how the mathematicians try to solve a problem that isn't even possible
@jhwhthemerciful
@jhwhthemerciful 2 года назад
Hi everyone. I happen to have quite a paradox that would fit in this video and I would gladly share it with you. We have a murderer in the dark ages and he is caught. It is sunday and the murderer stands in the courtroom to hear his sentence. The judge tells him that he will be hanged the next week, between monday and sunday. The judge also tells him that the morning of his execution he can not know for certain that he will be hanged that day. So we have two conditions: The murderer WILL BE hanged the next week between monday and sunday. And he CAN NOT know for certain, on the morning of his execution, that he will be hanged that day.
@galofuf
@galofuf 2 года назад
@@jhwhthemerciful my man gotta guess when hes gonna die
@benbrownlee6112
@benbrownlee6112 2 года назад
Time travel is possible according to the laws of physics
@omokok1877
@omokok1877 2 года назад
Ne Dom activities
@maddogkilla1
@maddogkilla1 2 года назад
@@jhwhthemerciful that's a weak paradox and more of an inconvenience
@cihloun
@cihloun Год назад
So, it's like schreningers cat, except it's your grandfather
@theanonymusguy
@theanonymusguy Год назад
why has noone else brought this up
@theanonymusguy
@theanonymusguy Год назад
also its Schrödinger's cat
@cihloun
@cihloun Год назад
@@theanonymusguy oh thanks
@organfan668
@organfan668 Год назад
If it wasn’t for back to the future we wouldn’t know if we actually made an alternate timeline at all
@rohanjeetdas5707
@rohanjeetdas5707 7 лет назад
Solution: *Why the fuck would you kill your grandfather?*
@thethunderdrone7256
@thethunderdrone7256 7 лет назад
Rohanjeet Das memes
@rajasingh1488
@rajasingh1488 7 лет назад
Chutiya sala
@liberamans4173
@liberamans4173 7 лет назад
Perhaps the grandfather acted badly to you.
@siiighimembarassed
@siiighimembarassed 7 лет назад
Rohanjeet Das Yh xD
@tposiotswok9836
@tposiotswok9836 7 лет назад
Rohanjeet Das for the lols
@monogameplay3
@monogameplay3 7 лет назад
Barry fucking stop now
@olson_media
@olson_media 7 лет назад
MEØW hahaha thinking the same thing😂😂
@gabrielreed1096
@gabrielreed1096 7 лет назад
MEØW 😂😂😂
@drdurag169
@drdurag169 7 лет назад
MEØW Screw Zoom
@bernardchen8017
@bernardchen8017 7 лет назад
LOL
@xSavageGamerx
@xSavageGamerx 7 лет назад
IN4C10 //3 screw savitar
@op_sagnik
@op_sagnik Год назад
That's such a good explanation bro. Loved it truly. Everything's clear by now. ❤️❤️❤️
@davewilliam5228
@davewilliam5228 2 месяца назад
Grandfather Paradox State's that person builds time travel machine. Person travels back in time. Person kills his younger grandfather before his younger grandfather meets his younger grandmother. Father is not born and baby person is not born. Person is not travelling back in time.
@andreysmirnov8892
@andreysmirnov8892 Год назад
There's an lnteresting theory, called Novicov's self consistensy principle, that resolves this paradox. Basically, it states that there's only one reality that has already experienced all of time travellers' actions. So, for example, if you were born, then any attempt by any time traveler(including yourself) to prevent that is doomed to fail. There's a great videogame called "Quantum break" who's whole plot revolves around Novicov's principle.
@sohamdutta5827
@sohamdutta5827 7 лет назад
Just call it, Schrodinger's Grandfather.
@cmplsvpen591
@cmplsvpen591 7 лет назад
I thought i was the only one....
@MISHRAIF
@MISHRAIF 7 лет назад
ya thought of that myself today.....gdaddy exists and doesn't :)
@blitzie66
@blitzie66 7 лет назад
Soham Dutta grandpa is both alive and dead but when you check him which outcome is it
@GuckDaBaws
@GuckDaBaws 7 лет назад
appart for Shrödingers Cat not working like this... sure
@azraelle6232
@azraelle6232 7 лет назад
"Back in my day, we existed in only one time loop, forward through time both ways, and we didn't complain!"
@justinfox173
@justinfox173 5 лет назад
This is what Avengers Endgame was trying to do
@smysrbh
@smysrbh 5 лет назад
Yo was waiting for this comment
@SatnamSingh-mx2uc
@SatnamSingh-mx2uc 5 лет назад
@@user-cy5hz6tj9c i think dragon ball z used similer concept.where you can't change the past..
@alrafidmahadi4252
@alrafidmahadi4252 5 лет назад
@@user-cy5hz6tj9c Endgame established going out of the grand father paradox by creating an alternate reality. Loved it
@Karlsteins
@Karlsteins 5 лет назад
Endgame use Multiverse concept instead of this “Back to The Future” concept
@justinmagno1994
@justinmagno1994 5 лет назад
They should've brought Tony back with the gauntlet. But contracts or whatever
@Shreeraksha-ey8nl
@Shreeraksha-ey8nl Год назад
me : kills grand father Grand father : dead Me : still alive THIS IS THE WROST WAY TO REALIZE THAT YOU ARE ADOPTED
@flexico64
@flexico64 Год назад
Heck man, you explained this so much better than I could!
@davewilliam5228
@davewilliam5228 2 месяца назад
Grandfather Paradox state's that person builds time travel machine. Person travels back in time. Person kills his younger grandfather before younger grandfather meets his younger grandmother. Father is not born and baby person is not born. Person is not travelling back in time.
@g7bz
@g7bz 4 года назад
This guy messed with my brain for 2 minutes and 48 seconds straight.
@obnoxiousknight1586
@obnoxiousknight1586 4 года назад
Even the Google supporting at the end?
@trendteaser9333
@trendteaser9333 4 года назад
Really? For me it was. Really interesting
@aryanink
@aryanink 3 года назад
hey look at my dp
@RaHul-yr3ye
@RaHul-yr3ye 3 года назад
You haven't seen "dark" have you?
@nandagopalr8246
@nandagopalr8246 3 года назад
no only 2min and 47 seconds😁
@jchillin5884
@jchillin5884 4 года назад
anvengers endgame writers: “write that down, write that down!”
@Charliezard7
@Charliezard7 4 года назад
Nah, in endgame it was the complete opposite
@jayyadav1610
@jayyadav1610 4 года назад
Endgame's time travel was shit and full of plot holes
@dafuanisnothere
@dafuanisnothere 4 года назад
@@jayyadav1610 It wasn't shit if u learn Deutsch's Parallel Universe !
@bintangtrawijaya6460
@bintangtrawijaya6460 4 года назад
@@dafuanisnothere cap gets old.
@dafuanisnothere
@dafuanisnothere 4 года назад
@@bintangtrawijaya6460 It's kind of complicated, he have broke the science.
@Tabby3456
@Tabby3456 Год назад
I feel like if you could go back in time, you are fated in some way to never kill your grandfather or do anything in the past that would contradict your own existences So for example, if you were to be visited by future you and be warned about something, you later on in the future will inevitably go back in time to warn your past self. So if no one has come back in time to warn anyone, then how is time travel (atleast backwards) possible?
@Neon87rr2gamer
@Neon87rr2gamer Год назад
I fully understood the solution you gave to the paradox, it is hard to explain to any person in words but I understood it
@hoanganhpham4621
@hoanganhpham4621 5 лет назад
I went back in time to kill my neighbor but I started dissapearing from the timeline.
@AceDeclan
@AceDeclan 5 лет назад
Its impossible. You won’t die at all. Didn’t you understand the beginning of the video? The grandfather paradox is wrong.
@hoanganhpham4621
@hoanganhpham4621 5 лет назад
@@AceDeclan r/woooosh
@hoanganhpham4621
@hoanganhpham4621 5 лет назад
@@AceDeclan oh ok
@giphytune5223
@giphytune5223 5 лет назад
I get your gist. But that is nasty.....
@eyeverse7184
@eyeverse7184 5 лет назад
Daltira I think your just trying to cover up your stupidity
@hiyukelavie2396
@hiyukelavie2396 Год назад
A more interesting paradox is one where you time travel back a second time to stop yourself from doing something that you did the first time you time travelled
@Captain_Timezone
@Captain_Timezone Год назад
Like i go to slap someone but future me stops me so i would automatically go back to the present but i would still slap that person
@briansammond7801
@briansammond7801 Год назад
That is the plot of a great Science fiction short story by Alfred Bester, titled "The Men Who Murdered Mohammed." I highly recommend it.
@caramurad
@caramurad Год назад
like when flash goes back in time to stop himself going back in time and saving his mother's life.
@michelealessandrini3421
@michelealessandrini3421 Год назад
Also "Primer" is another great movie with similar intricated scenario
@anubhavpal5782
@anubhavpal5782 Год назад
yup, was done in the show called the flash
@Blue-gy2it
@Blue-gy2it Год назад
*kills grandfather* “Wait. Why am I not dead? Wait *NOO-“*
@anmirfan6447
@anmirfan6447 11 месяцев назад
I love how mathematician try to solve a problem that will be never be a problem.
@zacochs2301
@zacochs2301 7 лет назад
The solution is that you become the grandfather
@NoName-xxxxx
@NoName-xxxxx 7 лет назад
Just like in Futurama
@bambicandi6488
@bambicandi6488 7 лет назад
The news is that you are, just like the single electron universe... consciousness splits while being a single one
@keeewl4607
@keeewl4607 6 лет назад
ZJO_17 what if you were adopted tho
@Ryan-nx6sy
@Ryan-nx6sy 6 лет назад
ZJO_17 wouldn’t work cuz you wouldn’t be born to do that
@DevilleQueen
@DevilleQueen 6 лет назад
Like Back to the Future gone wrong. You kill your grandfather and marry your grandmother.
@SatanistSin
@SatanistSin 8 лет назад
Schrodinger's grandfather.
@ailurophile4341
@ailurophile4341 8 лет назад
+SatanistSin hahaha
@shouryanaik2622
@shouryanaik2622 8 лет назад
Damnit I was just about to say this!
@xTraum
@xTraum 8 лет назад
+SatanistSin my god i wanted to write that and then i saw ur comment hahaha
@SatanistSin
@SatanistSin 8 лет назад
great minds... ;-)
@remliqa
@remliqa 8 лет назад
+xTraum Me too.
@kato_dsrdr
@kato_dsrdr Год назад
I like the terminator idea of this paradox.. Basically, it's impossible for you to kill your grandpa.. Whatever you do to the past inevitably cause the future where you came from..
@Broc_Obama
@Broc_Obama Год назад
I like that idea, but the simplest thing for us is to admit is that time travel into the past is impossible. But the future might be because of things like time dilation and stuff
@AttackHelicopter64
@AttackHelicopter64 Год назад
@@Broc_Obama Or that "time traveling" has no affect on time traveler. You killed your grandpa - no problem, you come back to the world that doesn't know who you are
@Questiala124
@Questiala124 10 месяцев назад
Making the grandfather paradox is just forming a closed shape in 4-dimensional space and pushing a dot through it until it finds the end. Since the shape is closed there’s no end of the line and therefore it goes around infinitely. I theorise this creates a secondary “sheet” of space time that’s simply all the area you existed in forming the paradox, then once a single loop has been made you erase the whole timeline and that causes the original space time to return and start the second timeline. So they exist separately like two lights that flicker after the other stops flickering.
@newguy90
@newguy90 8 лет назад
He says alternate timelines are boring as a solution and he won't do it, then he goes on to explain an alternate timeline.
@waynehayes912
@waynehayes912 8 лет назад
It's the same timeline just with two different states. To give a metaphor as an example alternate time line are two separate coins. while his superposition timeline is the different sides of the same coin that's constantly spinning. Since the grandfather and grandson are constantly switching between existing or death the coin never lands .
@LittleBigPoet
@LittleBigPoet 8 лет назад
What's up with all this people with letters has their youtube image?!!?
@newguy90
@newguy90 8 лет назад
João Miguel If you do not have an image thumbnail, Google+ will take the first letter of your username and use that instead.
@annojance
@annojance 8 лет назад
+Wayne Hayes ...except it isn't "switching" between states; they're simultaneous, so it's logically equivalent to his original "boring" (his word) "solution" (not a solution, because it isn't actually a paradox to begin with).
@modboy810
@modboy810 8 лет назад
You are right. It must be this duality crap they teach them at university... they don't seem to understand its a joke... they're taught that an electron is a particle... and that light has a speed... this is why time stops at light speed... There is no such thing as a paradox... I'm not going to answer weirdos that can't spell... or define a field... (I've made an edit as I don't want morons trolling me when all of this was answered before anyone on youtube was born) No I'm not going to offer anything new... Isaac Newton defined the field with his book Opticks... I have already credited him... All his equations are proved... e=mc2 falls apart with the cosmological constant meaning that c is not the speed of light... and its certainly not a proved equation... Relatively speaking folks these people are full of hot gas and fusion... Maxwell House was a brand of coffee that made people crap in the eighties... I'm not even going to argue with crap equations... Their math stinks... If they wanna post any proofs on here let it rip because its going to fall apart like a resolved fart... space time sounds like an event which comes after a fart... I'm not sure I need to define time that way... If relativity and fusion were to be believed there would be no Sun it would have been a brief spark following an explosion... And there would be no light...
@Capitan_77
@Capitan_77 3 года назад
TENET people what’s up
@raythedude1692
@raythedude1692 3 года назад
Ayyyyu
@kenzito101
@kenzito101 3 года назад
Wazzzup
@Titankiller-fz4tn
@Titankiller-fz4tn 3 года назад
I did not understand that movie at all
@davidraveh5966
@davidraveh5966 3 года назад
@@Titankiller-fz4tn it's not as complicated as Dark...
@handagoat7193
@handagoat7193 3 года назад
@@Titankiller-fz4tn me either
@KnakuanaRka
@KnakuanaRka Год назад
So how would you trace the two timelines forwards from the loop? It sounds like the time-traveler from the timeline where they are alive would return to their own timeline where the murder never happened, while the other would continue on without grandfather or time traveler. I ask because I've heard of a similar story, but where the time-traveler went back to kill someone who killed their daughter; thus the time traveler exists in both timelines. Would the version of the time traveler who went back return to their own timeline where their daughter was still killed, while their counterpart from the timeline where the daughter was saved continues in their own timeline because they never went back?
@raviexthegod
@raviexthegod Год назад
I love how I just used this exact theory in an argument in the comments of a short trying to explain why this exact scenario plays out in a science based TV show I watch.
@abdullahalshudukhi684
@abdullahalshudukhi684 8 лет назад
Forget the video, He js sponsored by Google HOLY SHIT
@abdullahalshudukhi684
@abdullahalshudukhi684 8 лет назад
is*
@Energyxxer
@Energyxxer 8 лет назад
+abdullah alshudukhi Yes, he is sponsored by the owners of the very platform he is uploading a sponsored video to.
@amreladawy3784
@amreladawy3784 8 лет назад
+Energyxxer That is Paradox
@Hallieisntbritish
@Hallieisntbritish 8 лет назад
+Amr ElAdawy No that's politics.
@FrostyyAstro
@FrostyyAstro 8 лет назад
+Hallieisntbritish No, this is Patrick!
@TheZALGOisCOMING
@TheZALGOisCOMING 8 лет назад
The real answer is that you didn't actually kill your grandpa because you were adopted.
@firekind1980
@firekind1980 8 лет назад
+Behind TheWall Which is the reason you did kill him. No paradox.
@toasty4000000
@toasty4000000 8 лет назад
+Behind TheWall Then you didnt kill your grandfather, you killed your guardian's father, so, not applicable
@wobblysauce
@wobblysauce 8 лет назад
It was the neighbor all along.
@josephclegg3562
@josephclegg3562 5 лет назад
The adopted murderer. Lol!
@Numonjon-os1kx
@Numonjon-os1kx 8 месяцев назад
I've already solved this theory, it took me 2 weeks to solve actually, and now i am planning write an article about it, great video btw👍
@davewilliam5228
@davewilliam5228 2 месяца назад
Grandfather Paradox state's that person builds time travel machine. Person travels back in time. Person kills his younger grandfather before younger grandfather meets his younger grandmother. Father is not born and baby person is not born. Person is not travelling back in time.
@ankita19871
@ankita19871 Год назад
I believe if it were possible to go back in time then we could be just an observer. We cannot change situations at all.
@electrocubic5116
@electrocubic5116 Год назад
Just like watching a recorded video you mean. You can just watch the events unfold in front of your eyes all over again.
@jojomark4946
@jojomark4946 3 года назад
Him: But that's just avoiding the paradox Also him: By the way there is no paradox MOVING ON
@venkatdenduluri816
@venkatdenduluri816 3 года назад
Exactly 😂
@giovannitorres9337
@giovannitorres9337 3 года назад
I mean, isn’t the idea of quantum superposition and schrodinger’s cat essentially saying there is a second timeline is created? There is a possibily, an existence where Schrodinger’s cat is dead and another where it’s alive. Only by opening that box do we find out the reality we’re in. And similar with the grandfather paradox, by time travelling and offing grandpa then travelling back you go off and create a new possibility, a new existence where your grandpa is dead and kid you doesn’t get born. Now ofc the time travelling paradox is a bit more complex as it has multitudes more of possibilities. 1. How time travel works, particularly when you go back. A) When you go back after killing grandpa, you return to your own timeline where no-one ever killed your grandpa. But the existence of a timeline where your grandpa is dead, and you were never born runs parallel to your original timeline. B) When you go back after killing your grandpa, you’re forced to live in that new timeline you created. You’re basically a time alien, foreign to thar reality. An existence where you came from where you were born but live in one where you never were born. C) The fire life reality: By doing the deed, you cease to exist and just disappear but your actions remaining particularly the grandpa killing part. Its kind of like a fire, you burn and destroy and create havoc but once you’re done you disappear and vanish without a trace of your existence except for your handiwork.
@schwingedeshaehers
@schwingedeshaehers Год назад
@@giovannitorres9337 no (to the superposition is creating a second timeline), it depends on the interpretation
@ybadexmadrra7736
@ybadexmadrra7736 Год назад
But how does being alive play into this like if I killed my grand father and suddenly ceased to exist but if I'm not alive I can't think so???
@pratiksadawana9334
@pratiksadawana9334 5 лет назад
"Then your father and mother won't have been born" this isn't Alabama bro
@soos4818
@soos4818 4 года назад
?
@friedrichkrone5141
@friedrichkrone5141 4 года назад
@@soos4818 when he Kills his Grandfather and then as a cause his mother and father die he suggests that they are Brother and sister and parents. Alabama shit
@spthibault
@spthibault 4 года назад
Lmmfao.... hahahaha... some here don't get it... oh I get it... but my thought was West Virginia or if you're British. Wales. Lmao
@sylvia7961
@sylvia7961 4 года назад
he said or
@Cracker_Smacker
@Cracker_Smacker 4 года назад
Damn i didn't think about it
@dawidwojacki5049
@dawidwojacki5049 Год назад
Time doesn't exist, we just made it up to connect our memories with the fact that we get older and die
@ogcastroneto1
@ogcastroneto1 Год назад
I don't know if time is logical, so maybe you're trying to fix a car with an apple pie.
@masterchief5603
@masterchief5603 4 года назад
So u mean, *_YES BUT ACTUALLY NO._*
@supertron6039
@supertron6039 4 года назад
Yeah that pretty much sums it up.
@vere9652
@vere9652 3 года назад
Yes, but actually no
@unknow11712
@unknow11712 3 года назад
it is not a paradox , but it is impossible .
@nichsulol4844
@nichsulol4844 3 года назад
@oH well,lord! when wormhole is actived gravity is too strong
@RaHul-yr3ye
@RaHul-yr3ye 3 года назад
Schrodinger: yed
@MetaKnight68
@MetaKnight68 8 лет назад
People assume that time is a strict progression of cause to effect, but actually, from a non-linear, non- non-subjective viewpoint, it's more like big ball of wibbly wobbly, timey wimey...stuff.
@orangecrush4
@orangecrush4 8 лет назад
yesyesyes
@VideoGameAnimationStudy
@VideoGameAnimationStudy 8 лет назад
+MetaKnight68 Sounds like that sentence got away from you..
@menace992
@menace992 8 лет назад
Chronos too stronk :D
@stephanym.8563
@stephanym.8563 8 лет назад
😍
@dhruvdnar
@dhruvdnar 8 лет назад
and listen.. dont turn your back, dont look away and dont blink
@Among-Us.
@Among-Us. Год назад
The twist really comes when you go back in time and realise you are alive💀
@hirashrestha4429
@hirashrestha4429 6 месяцев назад
Wait I’m no scientist and this might be really dumb question but since everyone had two grandfather at some point, wouldn’t that be a second variable to the grandfather paradox?
@MilanTheAngel
@MilanTheAngel 8 лет назад
My brain is melting
@aidanferguson5963
@aidanferguson5963 8 лет назад
Same
@greg77389
@greg77389 8 лет назад
+Vegeta You should borrow Bulma's time machine and test this paradox yourself
@youssefyoussef8121
@youssefyoussef8121 6 лет назад
Exploding*
@ultimaxkom8728
@ultimaxkom8728 6 лет назад
Trying to Google my brain, but instead found this: error 404: Not Found!
@darthXreven
@darthXreven 6 лет назад
grow those brain cells. learn something lolz you're brain isn't melting, it's trying to learn something new.....let it learn....OPEN YOUR MIND QUAID.....wait, what??
@adamb89
@adamb89 Год назад
There's also the Novikov Self-Consistency Principle, which basically states that no paradox can happen. If you go back in time, everything you do will be consistent with history. Any attempt to influence events merely causes them to play out exactly as they did in the past. So you would be unable to kill your grandfather no matter how hard you tried. That event never happened, so it can't happen.
@ferhanali2569
@ferhanali2569 Год назад
Yeah I like this one too, have heard of it! Thanks for reminding me! 😀👍
@OmniCroissant
@OmniCroissant Год назад
Like in Harry Potter and the prisoner of Azkaban.
@adamb89
@adamb89 Год назад
@@OmniCroissant You may be interested in the fan fiction "Harry Potter and the Methods of Rationality" then. It's sort of a "What If" alternate story, and at one point he conducts experiments using the Time Turner and concludes that the timestream is self-consistent and no paradox can occur.
@oncetwice6366
@oncetwice6366 Год назад
I don't understand why this even is paradox. According to Einstein's theory we cannot go back in time. Only slow it down or speed it up in relation to others. Meaning you'd stay in the moment but not go back in time.
@adamb89
@adamb89 Год назад
@@oncetwice6366 Mainly because, from a mathematical perspective, time works both ways therefore time travel is mathematically possible. The kicker is it requires exotic matter that we don't yet know exists. Something with negative mass or negative energy. It's mathematically possible, but we don't yet have physical evidence.
@lifeiscats1337
@lifeiscats1337 Год назад
You: *goes back in time to kill your grandfather* Also you: *survives* -WAIT A MINUTE HOLD IT! I JUST HAD A FUCKING BRUH MOMENT!!
@peterclarke7240
@peterclarke7240 Год назад
This has already been solved. For a perfect example, watch the Red Dwarf episode "Tikka to Ride." basically, it's built on the idea that you don't actually have the level of free will that we like to think we do, and that going back in time changes nothing, because you going back in time has already happened. You don't know it yet, because you haven't experienced it yet, but everyone else HAS, they just didn't know it was you. Everything you attempt to do while in the past has already happened, but you don't know it has. Therefore you may believe at the time that you have free will to do things in the past, but you actually don't. Therefore the Grandfather Paradox is better understood by reframing it as the "free will paradox."
@yujiakweh
@yujiakweh 7 лет назад
Btw why would anyone want to kill their grandfather anyways?
@yujiakweh
@yujiakweh 7 лет назад
Hank Hill lol
@3vc0ph
@3vc0ph 7 лет назад
To suicide without suiciding.
@benjaminan1183
@benjaminan1183 7 лет назад
Hank Hill Ha
@ethereal-twenty3855
@ethereal-twenty3855 7 лет назад
Redz The Soulless Hater lmao
@robertburbank3202
@robertburbank3202 7 лет назад
i have a gun in my holster, and my invention stored away in my pocket. just a quick visit to grandpa with the parents. but the parents, after a little while, go outside for some reason. grandpa looks at me. he smiles. i am slightly uncomfortable. grandpa stands up from the chair and puts his hands on my shoulders. "just let this happen like your daddy did." i am shocked, and silent. grandpa's hands move to my waist. my jeans are unbuttoned and taken off. grandpa takes out his firm cock. my thoughts get over me, and i grab my gun and turn around. seeing grandpa unclothed made me begin to get erect, but i could not let this happen. right before i pull the trigger, grandpa's erect stick of justice touches the invention. i teleport years back to when my grandpa is a child. i appear with my half erect pleasure and pull the trigger, killing little grandpa, last thing he sees being my half-chub.
@fljpopguy
@fljpopguy 8 лет назад
At the end of the video, did that guy look backwards to see if his future grandson was chasing him with a knife?
@chupacabra9357
@chupacabra9357 8 лет назад
+fljpopguy Funny!
@brcha
@brcha 8 лет назад
+fljpopguy also the predator sound was heard in the background. or a woodpecker, they do sound similar, but it was most probably a predator.
@josephclegg3562
@josephclegg3562 5 лет назад
While this video was being recorded, grandchildren out there were planning on traveling back in time to kill their grandfather.
@shanoto3203
@shanoto3203 5 месяцев назад
the solution i thought to the grandfather paradox isnt really intuitive but my theory is time is linear , there for whatever happens on the line once , cannot be changed meaning lets say indeed you go back in time to kill your grandpops , you use a gun , the gun would jam no matter what type of gun it is, and if it doesnt jam . your gonna miss this shot even if its point blank, lets say you use a knife , and you manage to stab him , you will not be able to mortally wound him and he will get off with 0 complications, you use poison? hes gonna vomit it out , you try to strangle him? hes gonna be able to break the choke in other words what has happened can never be changed , and if you try your hardest , the universe itself is gonna prevent it
@Thetheproto
@Thetheproto Год назад
Your right. The correct ways to solve paradoxes is redefining the possibilities of reality. Kind of like how the alternative timeline solution does. That you said is just avoiding it.
@davewilliam5228
@davewilliam5228 2 месяца назад
Grandfather Paradox state's that person builds time travel machine. Person travels back in time. Person kills his younger grandfather before his younger grandfather meets younger grandmother. Father is not born and baby person is not born. Person is not travelling back in time.
@BardicLiving
@BardicLiving 7 лет назад
Is it just me, or do these videos never actually answer the question?
@kyuma401
@kyuma401 7 лет назад
yea they don't tbh, they give an answer that could be one for the question. But you have to realize that there is more than one answer to these types of questions.
@zacari.zarpado
@zacari.zarpado 7 лет назад
He had to be a genius to answer this paradox
@andrewsourial3161
@andrewsourial3161 7 лет назад
they did answer the question, but by making references to particles and waves. If you haven't studied these you wouldn't really get it.
@kps2642
@kps2642 7 лет назад
BardicLiving no its just your stupidity
@iulianmoisi4365
@iulianmoisi4365 7 лет назад
so...before you go back in time and kill your grandfather,everything is normal,your grandfather meets your grandmother,makes a baby(your mother or your father)as a result,you are born so theoretically you are able to go back in time,right?now,you go back in time,kill your young grandfather then your parents never existed thus you never existed but,THE GRANDFATHER STAYS DEATH,because death is death and is not related to any of you and any of your action either you kill him with your bare hands or you use a weapon of some kind.so what is done is done at the point you done it.like perfect murder...who killed him?no one,like really no one
@CosmicFox2007
@CosmicFox2007 5 лет назад
Me seeing the beginning: hmm ok simple Looks away for 1 second: ***quantum physics***
@Sea-zu4bj
@Sea-zu4bj 4 года назад
Quantum superposition isn’t that bad, it’s what you might learn in school if you choose physics. Google search should clear it up easy
@Revonlieke
@Revonlieke 7 месяцев назад
The fun part here is that we don't have concrete evidence that the grandchild that IS born wouldn't make the same decisions regardless of who ends up being their alternative grandfather. Yes it changes who his grandfather is, but not the mother and if that side of the genepool is the one that decides you're smart enough to invent a machine to time travel with, then the only change you're doing is a minute one. You might look different, sound different, have different beliefs, but you'd be still; you. Now, we ASSUME that because of the different grandfather, the decisions they make affects who the children become. Maybe the father is more religious and you end up becoming a priest. But that is only speculation and assumption, because we do not have an actual evidence that that would actually happen. The future you after your old self killed your grand-dad would possibly end up making the same decisions in life. And because we can't prove it, because we don't know for absolute certainty... We also can't prove that we all live in a simulation where every child, parent and mother end up making the same decisions regardless of who their mother or father is. And is free will just an illusion set by the matrix the elude us from the truth. The truth that you are you, not because of who raised you, where you were born or where you went to school, but because the program made you so. Think about that.
@FernasRPG
@FernasRPG Месяц назад
The most interesting fact is that you dont even need to "kill" your grandfather, just make him have his kid earlier or later. Like a couple hours difference and you are not the same sperm anymore
@horsepowermultimedia
@horsepowermultimedia 4 года назад
"Time only moves in one direction." *Flashes picture of the band called One Direction*
@user-mz7cn9hq8v
@user-mz7cn9hq8v 4 года назад
Underrated
@xovere2098
@xovere2098 4 года назад
Lmao I was looking for this
@seymourkrelborn4780
@seymourkrelborn4780 4 года назад
*c r i n g e*
@dausbajing
@dausbajing 4 года назад
I thought I was hallucinating
@imiss1d968
@imiss1d968 4 года назад
just goona type this
@raspic2838
@raspic2838 8 лет назад
okay i can understand this video 1:11 Nevermind
@superleipoman
@superleipoman 8 лет назад
+Raspic I marginally understand that superpositions exist and such things but I would really like to know more about the proof of going back in time to be impossible as they presented it. An example of superposition reasoning is Schrodingers cat, who is also both death and alive at the same time.
@BulletsToBrainRatio
@BulletsToBrainRatio 8 лет назад
+Raspic The loop just loops on forever maybe, I don't understand this because relating it to a superposition makes no sense when we observe the event....
@jasvinjames5773
@jasvinjames5773 8 лет назад
+Hybrid Rainbow We observe the event sure, but the name's quantum superposition and this is definitely not "quantum". This may be something like 'time superpostition', (not a cool name i know, but i just made it up right now so theres that) Also to the person asking y there's no time travelling to the past i actually dont know for sure but heres some proposed methods, using Wormholes (nearly impossible), using Alcubierre Warp Drives (nearly impossible), i dont know how all of this works, just wikipedia it. But moving forward in time... Now we're getting somewhere, thats really easy but you need a lot of speed, 10% speed of light could provide significant time dilation. Again wikipedia it, or watch Interstellar, that movie is awesome
@jasvinjames5773
@jasvinjames5773 8 лет назад
+Jasvin James You know the wormhole way to travel back in time, a person named 'radekzOL' perfectly explained the way just a few comment threads below.
@Maladringe666
@Maladringe666 8 лет назад
+Hybrid Rainbow Exactly. People outside the reference frame are going to have some history, either that lineage exists or it doesn't exist. But if we use the superposition idea then everyone else experiences both the lineage existing and not existing at the same time. So if we use super position than we have to go back to the fact that two realities exist, because the super position wouldn't make sense in one solitary realm of existence. I am probably missing something and could be completely wrong, I am no physicists.
@ajaj2514
@ajaj2514 Год назад
Second question, if say your in a fixed timeline where you are bound to be born even in the case where your grandfather dies by your hand would you than just end up killing multiple different people or killing your grandfather at earlier and earlier points in their life?
@CrashSable
@CrashSable Год назад
It's very strange that your answer is "here's a thing a photon can do, so I'm just going to assume massive objects (as in, objects with significant mass) can do it too despite there being no examples of this happening and a wealth of evidence to say it's probably not possible"
@VIMAL-xh8wr
@VIMAL-xh8wr 3 года назад
Polt Twist: your grandmother had an affair that's how your father Born. Knowing this after killing you Grandpa: "WASTED"
@thorisop1040
@thorisop1040 3 года назад
Underrated 😂👌
@TheBrickagon
@TheBrickagon 3 года назад
Or what if when you go to kill him you get hit by a car and so you can't kill him anymore? :))))
@jeffireymurdock2073
@jeffireymurdock2073 3 года назад
I dont wanna be that guy but... Polt
@shiz2086
@shiz2086 3 года назад
@Justin Y? My god how do you guys even come up with this kind of speech skills
@marcusanimations1843
@marcusanimations1843 3 года назад
@Justin Y? why are u everywhere
@v.t.3064
@v.t.3064 3 года назад
Science teachers: the test won’t be that hard! The test:
@fishplayztoh
@fishplayztoh 3 года назад
Underrated comment
@SaberSimp69
@SaberSimp69 3 года назад
@@fishplayztoh not really, the guy explains it better than a teacher. The joke is super bad, the guy literally explained it at the most easiest how to say something confusing
@ananttiwari1337
@ananttiwari1337 3 года назад
@@SaberSimp69 This!
@SaberSimp69
@SaberSimp69 3 года назад
@@ananttiwari1337 eh sorry I made the wrong reply
@ddrix
@ddrix 2 года назад
@@SaberSimp69 I assume the joke was about the test being to demonstrate why the grandfather's paradox isn't a paradox without using the multiverse theory. I agree that if you know about superposition and u think about applying this exact knowledge to this problem it's not that hard to create the logical chain showed in the video. But it for sure shouldn't be easy for most of the students in school, smh.
@william18159
@william18159 9 месяцев назад
What’s that image at 0:04? I tried slowing down the video but it doesn’t seem to work.
@eliconley7331
@eliconley7331 9 месяцев назад
go frame by frame using "," and "."
@Deutungshoheit
@Deutungshoheit 6 месяцев назад
It’s not a paradox but the closed time loop would still be a problem because it would mean the whole universe is stuck in looping that timespan for eternity and that would effectively end the universe. But what would happen if you kill you grandfather to create a loop and then travel to the future again to a point after you started the time loop? Is there even a future to travel to if the universe is stuck in a time loop?
@TheRabbitInTheTwoTonneHat
@TheRabbitInTheTwoTonneHat 3 года назад
"Time only moves in 1 direction" *shows 1 direction*
@MAN-xs2lq
@MAN-xs2lq 3 года назад
0:04
@ronaldmclawrence9965
@ronaldmclawrence9965 3 года назад
@@dokidoki7 why is it called a second? Hmmmmm
@ronaldmclawrence9965
@ronaldmclawrence9965 3 года назад
@@dokidoki7 Why I asked the quedtion was that for what I was taught by my english teacher, second 2nd is the no 2 position. You mentioned it continues the pattern after 1st ( first) ya. But to gramatically say a second as the first position is like saying the zero 0 is irrelevant in its proper place ie. before 1. Remember, the zero is the thing the moves the nineth 9th to the tenth 10th. The omiting of the zeroth 0th, first position then putting it after the 1 to give you the 10th, shows one the truth of the numb ers. The mental numbness.
@ronaldmclawrence9965
@ronaldmclawrence9965 3 года назад
@@dokidoki7 Fair enough. My interplay was more into the symetrics of reasoning based on given linguistics.
@bidishaabanik
@bidishaabanik 3 года назад
I swear lmao
@ductuslupus87
@ductuslupus87 8 лет назад
Did you really put a subliminal of one direction in your video?
@AWWYEAHHHHHH
@AWWYEAHHHHHH 8 лет назад
Lol where
@branthebrave
@branthebrave 8 лет назад
0:03
@Nimbus3690
@Nimbus3690 8 лет назад
+Malcolm Pagett yes lol
@sprocastersprocaster
@sprocastersprocaster 8 лет назад
Lol yeah
@newexplorer6534
@newexplorer6534 8 лет назад
😨😨😨
@jneumy566
@jneumy566 Год назад
I think Back to the Future 2 handles it best in a most understandable way. When Biff gives himself the sports almanac, it does create an alternate timeline, yet still affects the lives of Doc and Marty when they go back to the present day. The time machine naturally takes them to the present along the skewed alternate timeline. So to the time machine, affecting the past changes the present because the time machine didn't have to choose which timeline's 1985 to bring them to. It naturally brought them to the present that was affected by the change in the past, and likewise, if they traveled to the future like Doc said, it would've been the future of the alternate timeline. Yet it is also an alternate timeline for our characters because they are from the other timeline with the memories and experiences from the other timeline
@parikshitkulkarni3551
@parikshitkulkarni3551 Год назад
I love the mobius strip explanation lol, mobius strip has only one surface but we have two different situations going on simultaneously
@mahaprasadrath
@mahaprasadrath 6 лет назад
Grandpa I've come to bargain. Thanks for 1k😇😇😇😇😎😎😎
@mahaprasadrath
@mahaprasadrath 6 лет назад
@Guy Pursin not wasting time with u
@leongrynerd6818
@leongrynerd6818 6 лет назад
This is gold
@nolanwestrich2602
@nolanwestrich2602 5 лет назад
And then Grandpa kills you 50 times.
@mahaprasadrath
@mahaprasadrath 5 лет назад
@@nolanwestrich2602 well I wouldn't kill my grandpa though
@theacademictaskmaster6481
@theacademictaskmaster6481 5 лет назад
@@mahaprasadrath Mahaprasad Rath's grandpa: "Who are you?" Mahaprasad Rath: "I'm your grandson and I have come to erase my blood from existence" *BAM* *Mahaprasad Rath creates Universe B where he doesn't exist* Multiverse/many earths theory
@SickVoid
@SickVoid 4 года назад
I've always thought of it that way: What you did in the past happened in the past so it must have already affected the future you are currently in. By time-traveling you are causing the future that you came from. So no matter what you do in the past it makes the future that you come from happen in the first place, a future where your grandfather is alive. Therefore, you can try as hard as you like, but you cannot kill your grandfather because something will always happen to prevent it. Otherwise you wouldn't be there to kill your grandfather in the first place. Hope this explanation made sense.
@yashprajapati8857
@yashprajapati8857 4 года назад
Yeah... There is a even physics theory that it is impossible to do something in the past that affects and changes the future.
@Shadow-Shell
@Shadow-Shell 4 года назад
Like the movie Alice through looking glass
@lokeshr8580
@lokeshr8580 4 года назад
Harry Potter, Game of thrones, Dark all follows the same time travel theories.
@sagnik3556
@sagnik3556 4 года назад
It's called the bootstrap paradox
@Charliezard7
@Charliezard7 4 года назад
@Denny of Den Kat Games well, your past self could freak out and try stabbing you with the scissors so... I mean many things can interfere. Or you can even be afraid of changing the past and return to your time. Even in the simplest situations this can be taken into consideration
@njabulomasina4180
@njabulomasina4180 10 месяцев назад
In order to "go back in time" you'd need to exist outside of time i.e. you'd need to no be cinfined by time. None of us exist outside of time (we're confined by time, space and matter) and therefore can never time travel...
@dan-777-abc
@dan-777-abc Год назад
Most meaningful few minutes of my day today
@ShweezyHD
@ShweezyHD 7 лет назад
Barry don't fuck up the timeline
@tame3365
@tame3365 7 лет назад
Shahril Mozumder 😂😂
@marlenafournier1824
@marlenafournier1824 7 лет назад
Shahril Mozumder I love this guy but that one liner...😏👏
@ponyoblue5322
@ponyoblue5322 7 лет назад
Thats really ironic with the latest episodes theme of closed time loops.
@ruth8964
@ruth8964 6 лет назад
Plot twist, you were adopted.
@josephclegg3562
@josephclegg3562 5 лет назад
But what if your grandfather and father were adopted?
@shivasurya7008
@shivasurya7008 5 лет назад
Plot twist: u copied the top comment
@gametrue2229
@gametrue2229 5 лет назад
Plot twist: you were a mistake
@legendzfilms4409
@legendzfilms4409 5 лет назад
@@josephclegg3562 by different parents
@averyhennessey7104
@averyhennessey7104 5 лет назад
lmao
@karmen11.12
@karmen11.12 8 месяцев назад
It took me a few times going over the paradox to actually get it and it's mind boggling 🤯
@RayRaeTV
@RayRaeTV Год назад
That millisecond 1 Direction edit was GOLD
@user-zf3el8zk3o
@user-zf3el8zk3o 5 лет назад
War machine had an idea to go to the past and kill baby thanos
@SonalShekharBhoi
@SonalShekharBhoi 5 лет назад
RU-vid algorithm got us here...
@sherlock4791
@sherlock4791 5 лет назад
if you kill baby thanos then there wont be any adult thanos and thus no one will snap the gauntlet and thus you won't have the reason to kill baby thanos, then you wont even travel back in time
@dictatoroblitorator1115
@dictatoroblitorator1115 5 лет назад
It just creates a parrallel time line
@leonkrizmaric3776
@leonkrizmaric3776 5 лет назад
It just creates alternative reality so they had to take stones and bring them to their reality
@biti3615
@biti3615 5 лет назад
Just Another Viewer h
@anuragdhole0805
@anuragdhole0805 4 года назад
Time Paradox: (exists) Netflix Dark : Let us introduce ourselves
@user-fp3yc9hm6m
@user-fp3yc9hm6m 3 года назад
.ereht olleH :teneT
@theouts1der
@theouts1der 3 года назад
Sic Mundus Creates Est
@Terraphisto
@Terraphisto 3 года назад
@@theouts1der *Sic Mundus Creatus est
@esauponce9759
@esauponce9759 3 года назад
Or the movie “Predestination “.
@nashnn7583
@nashnn7583 3 года назад
I am actually disappointed in Dark. The overused time loop where the girl's daughter is also her mother is not complicated ;it just doesn't make sense. I think they were trying to come up with complex subplots and ended up creating ones that don't make any sense Imho
@blyt7
@blyt7 6 месяцев назад
Batman explained it perfectly, the timeline is a strand of spaghetti. If you go back and change something, then the timeline pivots, that moment doesnt affect just the future, but also the past, where it pivots is the only part where they align
@axels.chainz
@axels.chainz Месяц назад
my resolution was always “you would stay in that time” like say i go back to 1950 or something you’d stay in 1950 and thus the years go on
@dlee645
@dlee645 8 лет назад
Most people think of time as a strictly linear progression of cause and effect, but actually, from a nonlinear, non subjective viewpoint, it's more of a...oh, never mind.
@teslafoil1505
@teslafoil1505 8 лет назад
Wibbly wobbly
@unironicallyb8053
@unironicallyb8053 8 лет назад
+Tesla Foil Timey Wimey
@unironicallyb8053
@unironicallyb8053 8 лет назад
+AlphaWolf28 Stuff
@potato2248
@potato2248 8 лет назад
+Dlee645 dumbass
@ParallaxScene
@ParallaxScene 8 лет назад
+Baked potato 420 It's a quote...
@vishnup.m4561
@vishnup.m4561 5 лет назад
Dormammu ,I've come to bargain
@th3gov3rnm3nt
@th3gov3rnm3nt 5 лет назад
SNAP out of it
@ThomasTheGayEngine
@ThomasTheGayEngine 5 лет назад
@@th3gov3rnm3nt Mr StArK i DoNt FeEl So GoOd
@vancados8609
@vancados8609 5 лет назад
vishnu pm the hardest choices require the strongest will
@aldopratama8974
@aldopratama8974 5 лет назад
I can do this all day
@SuPeR-mm9ls
@SuPeR-mm9ls 5 лет назад
STOP ! make this stop ! set me free !
@PWR_ADA
@PWR_ADA 6 месяцев назад
Theres 2 things that can happen if you go back in time and kill your grandfathet. 1 of them is you make 2 timelines the present and the past in the past timeline you kill your grandfather and you are not born their but in the present you where already born and if you kill your grandfather your still alive its just that your grandfather only dies once cause you weren't born to kill him again and the second thing is that if you go back in time theres only 1 timeline the past timeline and if you kill yout grandfather their you are still alive cause the timeline where you came from is like a separate universe so either way you survive
@takahashi2852
@takahashi2852 6 месяцев назад
If you went back in time and killed your grandfather when he was a child but nothing happened then either you're in an alternate reality or your grandfather is the mailman
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