TRUE Limits Of Humanity - The Final Border We Will Never Cross

Kurzgesagt – In a Nutshell
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The original Limits of Humanity: www.youtube.com/watch?v=ZL4yY...

Is there a border we will never cross? Are there places we will never reach, no matter how hard we try? It turns out, there are. Even with sci-fi technology, we are trapped in a limited pocket of the Universe and the finite stuff within it. How much universe is there for us and how far can we go?

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11 May 2021




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Kurzgesagt – In a Nutshell
Hey Everybody! So this video is a remake and remaster of an older video that has a mistake in it. You can watch the original here: trvid.com/video/video-ZL4yYHdDSWs.html What is the mistake? In a nutshell: In the original video we said that it was PHYSICALLY impossible to leave the local group and reach other galaxy groups. That the rest of the universe is moving away from us too fast to catch up. But that’s wrong. It is not PHYSICALLY impossible to leave the Local Group, just extremely unlikely that we’ll ever do it. BUT: If you have a lot of time and a fast spaceship you can still get to a limited amount of galaxies - these galaxies will eventually get out of reach forever but until then, they are technically within reach. So why did we keep the video up and didn’t purge it when we deleted our addiction and refugee crisis videos? Well, it has to do with the nature and severity of the mistake: We did talk to a few astrophysicists to ask them what they thought and if we should take down the video. Their feedback was pretty clear, they thought it was still fine as the universe expansion things explained in the video are correct and they didn’t consider the local group thing as too major. This was actually a case of “good enough”. Also, back when this original upload happened, Kurzgesagt was operating at pretty tight margins and just redoing a video was not easy for us. Back then the team was small and we were fighting to put new videos out. So we just swallowed the bitter pill and kept the video around. But the video still bothered us, as far as we know this was the biggest unfixed mistake on the channel. Super frustrating, especially because the core idea of the video is so fascinating. The limit of our species. The actual limit. So yeah, we finally remade the video, sorry for taking this long, life got in the way. The original video will stay up, you can compare the two if you want to see how far we have come in a few years in terms of production quality. All in all, we could only grow the channel and work on getting better because of direct support from you guys. So thank you for that. - Philipp PS: If you want, check out our shop for some new posters about the universe posters and black hole plushies and stuff like that: bit.ly/3dRJj71
Antton Kantola
Antton Kantola 3 gün önce
This gave me a scary thought.... what if the galaxy we are in and why there isnt alien activity or federation to meet is simply that we possibly are in such a young galaxy and being so far in the edge of it we are truely alone.
Fire Harry
Fire Harry 8 gün önce
yea me and my class at school watch your interesting videos and we enjoy them especially my teacher LOL
Darren Marquis
Darren Marquis 18 gün önce
If we look at space through the eyes of science? We will never understand the meanings and true origins. We are all source beings that were all created at the beginning, and we have have live countless lives. You are connected to everything in the universe and soon enough those who recognize their true nature will be able to connect with all of the beings in the universes. How? We are already connected, we are all one. Look at the spiritual side of the universe. It may lead you into a place of better understanding and less speculation by ‘science.’ Just a thought Love to all❤️
I’mActually Not a furry
The good news is that by the time this event horizon is past its very possible that interstellar travel will be possible
Ba'al's Bastards
Ba'al's Bastards 23 gün önce
You said via scifi technology... so a quantum entanglement teleportation system... travel the universe in all of 30 seconds...
Prof. Scheere
Prof. Scheere 35 dakika önce
Why would a being in the far future think hes alone in the universe? We write down history... We always act like things are going to be forgotten but thats very unlikely now
Dusan Kovacevic
Dusan Kovacevic 45 dakika önce
but actually no one knows did big bang ever happend or how big is universe or is there universe? that is just teories that someone made up and made whole world to beileve in.. just think what is actually there..
Marina Armstrong
Marina Armstrong Saatler önce
we have limits we may never cross with our current technology or future technology we can foresee, but to seek the answers we wish for, maybe we should start asking different questions. "um die Antwort zu kennen, müssen Sie zuerst die Frage kennen"
Silvus Sol
Silvus Sol Saatler önce
Holy Moses”Milk-Dromeda” is terrible. Who chose that? Who got to decide the name, picked that atrocity, and was still allowed to keep their job afterwards?
Twitch_StarLord_ 2 saatler önce
In the future we are gonna learn how just as how- we thought they wouldnt know a thing about big bang - they are gonna look back at us as primitive apes nd find a way to travel through black holes, teleport via dark energy and make it to distances we cant make if we turned on a ship and blasted off into nothing outward, instead of going into black holes and using quantum style tech we can possibly not even fully imagine. But thats just my idea of whats possible ofc. h3h3 Tc Everyone. Luv.All.. Star Out!
Matt Tanner
Matt Tanner 2 saatler önce
Every time I go down one of these rabbit holes, I inevitably ask myself, “why wear pants anymore?? It doesn’t really matter anyways” I’m still wearing them consistently but who knows, maybe one day…
503rd Heavy Panzer Battalion
Welp just had an existential crisis
Darknesskiller 3 saatler önce
So how big is it actually?
Oli DR
Oli DR 3 saatler önce
The thing is, with potential applications of quantum communications, there might be no need to physically travel such a distance. We know that two entangled particles are capable of communicating instantaneously over perhaps indefinite physical distances. Even if you needed to physically travel to such a location, from what we currently know about space-time, there might be some way of traversing vast distances quickly through non-conventional means. Scientific development is almost exponential in terms of how quickly advancements can be made on the back of prior knowledge. Thirty years ago we had barely achieved handheld mobile communications and open internet access. Now we have potential options for FTL communications, quantum computing (which is BIG in terms of computational speed etc), and a data-sphere you can access instantly from a handheld device (almost) anywhere on the planet. Give it a few years, a decade or two, and this limit will likely be less of a concern.
WOLF BS 3 saatler önce
Hiç mi Türk yok (is there not a Turkish)
artke asft
artke asft 4 saatler önce
Well that didn't truly ruin my day at all...
Miles McCoy
Miles McCoy 4 saatler önce
9:06 See you, space cowboy ~
Professor 4 saatler önce
This made me kinda sad
No 4 saatler önce
So glad you took the time to make a quality update!
runchao Li
runchao Li 5 saatler önce
On the contrary to many people in comments I am very optimistic. Just as said in the end of the video, we are SO LUCKY to be able to see near beginning of the universe.
Ouynx 5 saatler önce
bro this shit is plagerism from real life lore's video
LUIS INUAY 5 saatler önce
This is the most depressing thing ever :C
UnknownMaster21 6 saatler önce
if everything is expanding far away from each other, why we will be able to reach Andromeda in very, distant, future?
Insert a Coin
Insert a Coin 7 saatler önce
existential crisis kicking in
Also Woomyism
Also Woomyism 7 saatler önce
these videos are entertaining to watch, but the thought of travelling extremely far out to other planets or galaxies that are getting further and further away from us at increasing speeds slightly makes me scared of travelling to these places, as you'd pretty easily be able to get completely separated from your friends, family, and almost the entirety of the human civilization if you visited one of these places at the wrong time. Fortunately, pretty much none of us here will live long enough to make it to a point in which we have the technology to reach these far out locations, and by the time the technology is made there would likely be barely any galaxies left that could be visited
Kenny Ramos
Kenny Ramos 7 saatler önce
These are the kind of topics that I want to talk about while stargazing at the night sky with a friend or a loved one
KitFire. 7 saatler önce
now for more stress that i didn't need
Meme Guy
Meme Guy 8 saatler önce
should I be scared? O-O
LookzA 8 saatler önce
If a being in the far future in Milkdromeda won't be able to see past their galaxy and learn about the big bang through cosmic background radiation; similarly we could right now be at a point where fundamental knowledge of the universe is not detectable anymore.
SIMP SLAYER OF GOD 9 saatler önce
oh ive been past it very fun full of things we mortals could never achieve 😪
ye ye
ye ye 9 saatler önce
This doesn't make me sad just surprised at how these videos teach better than school
Konstantinos Kalavrezos
Konstantinos Kalavrezos 9 saatler önce
Why is the universe such an asshole?
Kieran Oberhansli
Kieran Oberhansli 10 saatler önce
Why does this scare me, but I keep watching
Eddie Orly
Eddie Orly 11 saatler önce
Yeah, i know my girlfriend already told me how small I am.
inv isible
inv isible 11 saatler önce
I don’t know but I feel that this video really questions the human’s existence here in the world as if we are just an illusion and celestial beings such as aliens are the ones who rule their lives, like they own the universe....that would be creepy.
Ledya vtwenty
Ledya vtwenty 11 saatler önce
We don’t need those other galaxies anyway. Let them go.
ila1964 11 saatler önce
In 1985 I wondered if it were possible to teach special relativity to kids. No-one I asked thought so. Now general relativity is explained to high schoolers.
NotGeo 12 saatler önce
Do we “know” anything today or do we only think we do?
jimvonmoon 12 saatler önce
I find it a bit weird they don't put up their videos in 4k since the graphics is all vector anyway.
CosmologicalDefect 13 saatler önce
Modest correction to video beginning about 4:20. The cosmic horizon is *not* necessarily where the recession velocity exceeds the speed of light, though it can be depending on the makeup of the universe (matter, radius, dark energy, etc...). That boundary specifically is instead the Hubble radius defined by r=c/H. Because our universe is not just dark energy, but still has a significant enough matter density, there are still galaxies who are already receding faster-than-light, but whose contemporary light emitted today will still reach us in the far future. In fact many of the objects we see today have *always* been receding faster-than-light and were never within our Hubble sphere, but are none-the-less still visible and will be visible for quite some time. As an example: The cosmic microwave background "surface-of-last-scattering" is currently receding away from us at 3.2c with a redshift of z~1,100. But when those photons were emitted, that same location was receding away from us at over 58c over 13 billion years ago. Any objects on that sphere have then always been receding faster-than-light from us despite their visibility.
Sadlittletroll 14 saatler önce
When the Big Bang happened, did it consider the possibility that it would one day create a tiny rock populated by sentient beings trying to study it and make sense of it?
13 saatler önce
Considering that the big bang was literally everything, so... we are technically all the singularity, somewhat- it had the atoms that would one day be Hitler, but also all the people he murdered, because of the law of conservation of matter, then, if it had been sentient... I guess it might know.
Elliot Richardson
Elliot Richardson 14 saatler önce
Cap there’s no limit😈
Temper Star
Temper Star 15 saatler önce
Science fiction now has a big emphasis in *Fiction*
Michael Lewis Jones
Michael Lewis Jones 15 saatler önce
Australian history is they are convicts if they are white people.
DaBigFreeze 16 saatler önce
10:26 d- did he just call us BIRBS?!?!?!! I thought I was the only one who knew that’s their real name!
realtick 17 saatler önce
Kurzgesagt > Infographics Show
Kevin Mulligan
Kevin Mulligan 18 saatler önce
makes me wonder if the expanding universise will settle into a less chaotic format, and we're the crazy ones.
Kevin Mulligan
Kevin Mulligan 18 saatler önce
we will become the explorers of all this time we've missed, just have to figure out the acceleration barrier.
Aymane El fahsi
Aymane El fahsi 19 saatler önce
سدرة المنتهى
Rami 8 saatler önce
No Name
No Name 20 saatler önce
After 1000 year your grand son say sory to make this video.(nothing is impossible)
Andrew Wessel
Andrew Wessel 20 saatler önce
Thanks for giving me heart palpatations
Bloater Snake
Bloater Snake 20 saatler önce
Meh, just wait until humans figure out that jumping through space technology shown in Guardians Of The Galaxy.
John diether Lanzaderas
John diether Lanzaderas 20 saatler önce
All main characters is Ducks
sky fox
sky fox 21 saatler önce
"The only true wisdom is in knowing that you know nothing." ~ Socrates
GAMER INTELLON 21 saatler önce
Diane Civis
Diane Civis 22 saatler önce
This is outdated knowledge, based on unproven theory, may as well be a fairy-tale,,,
Tanner L
Tanner L 22 saatler önce
This is assuming we won't discover new technology like being able to use wormholes
Amit Rana
Amit Rana 22 saatler önce
The hurried estimate startlingly store because oak differently save save a boorish walk. crabby, ill alibi
aaax77 22 saatler önce
Lots of time I tried watching your videos cause the graphics are cute and ended having a anxiety crisis and crying ... seriously stop try seeing the positive things in life instead of these nightmares ...
MAD Lab Gün önce
Even the last civilization of humanity wont fully understand this mind bending structure of the Universe.
Carl Panzram
Carl Panzram Gün önce
For anyone depressed by this video, there are a lot of way more depressing things, that actually can affect you, out there.
Ike Gün önce
ok but you never answered why we can't interact with those stars you just said they were getting further away
C Brown
C Brown Gün önce
I think "Andromeda's Way" would be much better than "Milkdromeda."
Garry Atwal
Garry Atwal Gün önce
Are we not also moving towards that dark horizon?
fredior 97
fredior 97 Gün önce
why i am watching this at night and get massive anxiety of dying and the earth dying and everything is so far away ´....aahhhh
Hydra Gün önce
We are really small
Gün önce
Yall really believe in an explsion? 💀. Like bro an explosion did noot create the perfect combination t sustain life, aka the right oxygen percentile s we dnt get oxygen poisooning.
Rami 8 saatler önce
Gün önce
CG Zam
CG Zam Gün önce
I just took a deep breath of cosmic background radiation.
ᴍᴄᴍxᴄɪ Gün önce
I mean..like this all sounds great 😕 But there's no way to determine how accurate this info really is. Let's say earth is a piece of glitter in a large McDonalds cup (full of glitter.) If we have more questions than answers about the piece of glitter closest to us...what makes you think we have any detailed answers to the whole cup?? -Hell, we can't even answer some questions about our own piece of glitter!? 🤷‍♂️ No hate or debate intended. I'm just saying. Interesting point of view for our universe tho. 🤔🌌✨
mass destruction
mass destruction Gün önce
The biggest flaw that comes in my mind in this brilliant examination of current celestial understanding is the fundamental human temporal bias. This is a term im not sure anyone else uses or ive seen anyone where else so I'll explain it. Perception is by nature power, and this video shows human perceptual power in the small mistake they made. Each human life on statistical average has the same approximate life span. Lifespan become human temporal bias. Further more the byproduct of entropy introduced by the laws of thermal dynamics compounds this temporal bias. Our lives are short, we know that on a deep intuitive physical level, and thus our perception is stunted by it. IF we are finite everything else must be finite. Right now we're children scared we'll never get to do what we want because of the limtis of time, but look how far our species has come so far. Look how rapidly technology has improved over the last century alone as humanities freeing itself from the shakles of a repressive past fearful of new ideas. I think it's virtually absurd to even say what we may or may not do when we can't even experiment with anything because we're still trapped more or less on this planet. That is the evidence of temporal bias to me. However I really enjoyed this video, think you did a great job, and made me a supporter of your efforts.
MiltonGG Gün önce
My brain just exploded...
A bunch of Retards
so what would happen somehow, if earth went beyond the horizon?
Nick Haskell
Nick Haskell Gün önce
that shit made me cry, yo.
Wrath Aloss
Wrath Aloss Gün önce
life is pointless.. enjoy it while you can. There is no after life
Concepts and ideas. God is real.
No One talks about the energy and what set it off
Ted s
Ted s Gün önce
This might be a pointless question but I'll ask anyway. The video mentioned that in the future there will be nothing to see and that the people living at that time will think they are on an island of sorts. So, what's out there that we can't see now? What in the sky have we lost due to time that we will never see again that shapes what we know as what's in the universe?
Paul Sewell
Paul Sewell Gün önce
It is an important point, though it would only apply to the physically tangible dimensions of existence, 4th,3rd,2nd, and 1st, and if humanity would choose to to seek enlightenment rather then material possessions, and put alot of work into forming a balanced and symbiotic relationship with our environment,world,solar system,galaxy we would find that once we ascended to the higher dimensions, say 5th and above, we would find that many if not most of the conscious beings that moved out of reach in the physical realm would be quite present in the metaphysical realm
Gabriel Romero
Gabriel Romero Gün önce
"Be happy with what you have folks" -George Carlin
ℝ𝕖𝕒𝕝 ℝ𝕖𝕡𝕥𝕚𝕝𝕖𝕤
So the movie passengers was wrong
Grappler Baki
Grappler Baki Gün önce
Tell you what, forget space travel and interplanetary colonization. You will have achieved the next step in your evolution when you can simply teach people to respect one another and to bend over and pick up a piece of litter and deposit it in its appropriate receptacle. This has not happened, never will and thus humans will die in the toxic waste that was once a beautiful earth. Have a nice day.
la science
la science Gün önce
That it,this getting too good now I want my own bird ...-kuak!!!🦆
665.321 Gün önce
Why does this hurt so much
Alijah Moore
Alijah Moore Gün önce
Do not buy anything from these people I spent 200 dollars on posters on may 26th and still have not received them. Now when I look up where the package is it tells me it has been sent back to the sender because they forgot to provide the address which I gave them clearly.
xenu Gün önce
this video makes me depressed
Rami 8 saatler önce
hulivar Gün önce
lol... 1:46 zooms out to our super cluster with 150k galaxies there...that already is just insane, but then multiply that to get to 2,000,000,000,000 which is 20 million clusters with 150k galaxies each...like wtf. That's why I laugh my ass off when anyone talks about UFO's. we don't know fuck all about what's out there. There's enough space out there to play billiards with solar systems and we wouldn't know unless it was happening with in 1k lightyears of us.
Daniel Ratcliffe
Daniel Ratcliffe Gün önce
this channel really is a great example of making education fun. fantastic work, the admission at the end earned great respect.
Global_loser 1
Global_loser 1 Gün önce
This made me extremely uncomfortable and that space between the pockets scares me
Makayla Goldsmith
What if humans came from another planet and were separated from our home already
Rami 8 saatler önce
What does that change tho
Edward Killeen
Edward Killeen Gün önce
My prof said: "3 spacecraft shine lights in the same direction. One is still, one is moving away and one is moving in the opposite direction. They are all on the same line and are shining their lights in the same direction down the line towards 3 other "detector" craft. These 3 other craft are on the same line but distant to the first 3. The second group of 3 have light detectors which also measure the speed of the lights from the first 3 craft. One detector craft is still relative to the still craft in the light emitting group. Of the two remaining "detector' crafts - one is moving away and the other is moving toward the first, emitting group." My prof says all the detector crafts measure the speed of all the light streams the same - as C. Isn't that what we were all taught? So, if the stars at the edge of the visible universe emit light - irrespective of how fast they are moving away, why would their light fail to reach us if it is traveling at C towards us? And how can they move away faster than C if nothing moves faster than C? And if there was really an "edge" to the observable universe then shouldn't the most distant stars already by disappearing? Yet we never hear reports of this.
MushroomSamba Gün önce
7:15 Gotta love a good Bebop reference 9:06 Another one lol.
Daniel K
Daniel K Gün önce
never say never
Rami 8 saatler önce
If u can change it then yes
Frankie Caruana
Frankie Caruana Gün önce
Unless we come up with some sort of way to make portals that bring us all across the universe... 🤔
Da Tru Mate
Da Tru Mate Gün önce
For future civilizations that will still have this knowledge, the main focus should primarily be to escape the universe rather than focus on Galaxy hopping. Especially in the near future when the universe begins to supposedly decay.
blackcid Gün önce
Ehem... Warp motor
Beejay King
Beejay King Gün önce
Judgement Gün önce
This pockets reminds me minecraft with its large but not endless map
Antonio Baptista
Antonio Baptista Gün önce
Well, many things were said impossible before. I know actual knowledge points to this, but we'll talk about it again in a thousand years... What we know is a tiny fraction of what there is to know.
The lovely carnation intrahepatically bathe because whiskey rationally unite against a small year. offbeat, vast birthday
I’m Edo
I’m Edo Gün önce
Why did I just subscribe now ?
D Mt.
D Mt. Gün önce
日本語訳ありがとうございます😊 とても嬉しいです✨
Michel Schildmeijer
Galaxies moving away with a speed greater than the speed of light.... does this mean they are moving back in time??
Rami 8 saatler önce
Good question, they are not moving its space of the universe between them are expanding so no
Omega Computing
Omega Computing Gün önce
the wording was: traveling faster *relative to us* than the speed of light
A Deca
A Deca Gün önce
Where are the pacifiers going? 6:55
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