@@TurtleSB If "8 years later" is meant to represent the time forward and back from the sender sending and receiving the message, then it would have still taken roughly 4 years for the message to send. So, it would still be wasting time.
1950: We want faster cars 1970: We want faster rockets 1990: We want faster computers 2010: We want faster internet 2020: We want faster vaccine 2050 (Colonizing Mars): We want faster spaceships 2100 (Colonizing space): We want faster babies 2500: We want faster teleportation *3020: We want faster light.*
“It wpuld take over 20 minutes to get a response!” *people in the 1800s wainting for a month to get a response to their letter* Edit: I WILL NOT CORRECT THE TYPOS
@@Marnige In that case sure. But it is not like he said that mars will feel isolated and will want to be independent. Also Mars spacecraft would probably be guided from mars rather then earth.
Quantum entanglement is the solution. Whenever we reach that start (if we ever do it), we'll already have far superior quantum computers that'll make us the job, and that thing about waiting for 4,3 years to receive something will only be so whenever we catch something censored from the information flow through the entangled particles.
Yeah this video doesn't really show how light is slow. it shows that despite how fast light is, it still takes a long time because of just how big our universe is
Maybe because "Why the speed of light is actually horribly slow" is more unique and attracts more attention compared to "Why our universe is actually horribly huge" because there are so many videos about the size of the universe.
@@JamesTheFoxeArt so by this logic if i go at the speed of light and travel to another galaxy it would seem as though it was instantaneously for me but hundreds of thousands of years for the 3rd person observing
@@ortherner And he never gets that response, because he died in a car accident five years ago. Yeah... and people wonder why aliens haven't contacted us yet...
shindari it’s not jsut about them contacting us, we have yet to sense any signal from them for example their radio or tv signals that are unintentionally sent out
@@thavambase6907 Those signals travel at the speed of light. So even if the alien civilization capable of producing those noises is only 500 light years away from Earth (a speck of distance, in the big picture) it would take 500 years for those sounds to reach us. Meaning that only signals sent out 500 years ago would just now be reaching us. By then, that civilization, for all we know, could have ceased to exist. It's just too much time. Too much distance. If there is no rate of speed faster than light, then the universe is quite simply too big to be traveled in a timely manner.
@@shindari I know all that...but my point is, earth 500 years ago was not modern, but that doesnt mean another civilization was not...each planet's history is different, many planets could have been way more advanced than we are now 1 million years ago...so my point is, we have never received any such signals from any alien planet which is odd because I do believe aliens exist but I understand the limits of physics in the gigantic universe...
Lol, that was on ND Tyson's 'simulation' video the other day... It was a good one. I don't think we live in a simulation, I think physics is tripppppin'! 🎱⚽⚾🏀🏈🏉🏐
Fun fact: There is no “time” for light. Photons that move at speed of light do not age. Universe is 13.7 billion year old, but even for the first photons that appeared in this universe, no time has passed.
Dancingdog Waiting 72 centillion years (I’m pretty sure the universe will end beffore then) just for the person to say I don’t like it do another essay
Us, humans are 1,000,000,000 times closer to the size of the observable universe than to the smallest length possible also known as the Planck length. So that means we’re actually huge but the universe just has a huge broad spectrum of sizes. This would mean that light speed is NOT slow as for it to move across a size that’s on the big side of the size spectrum, it’ll take a very little time as opposed to the size of the whole universe compared to the Planck length. So if there was a scale ranging from the Planck length all the way to the observable universe then the distance that light speed could travel in a certain amount of time such as the age of the universe would mean light speed would be would be BILLIONS AND BILLIONS times closer to the size of the observable universe than the smallest length ever known and considered the smallest length possible. In conclusion, we are huge and light speed compared to the known sizes of the universe, light speed is actually very fast.
@Benny Pepper ALSO, if you think that the universe is small then that's because you live on earth, in earth scale the universe looks so small but in cosmic scale it is so big.
Imagine what it was like just two or three hundred years ago when it took months to send and receive messages between Europe and the New World or Europe and Asia. A really big problem back then was that you didn't know if your message would ever arrive due to problems with the ships. Only thirty or forty years ago telephone communication between the US and Europe was subject to a noticeable lag. You had to be patient to let the other person respond.
Sure, it feels good to know how much we've progressed but this is the universal speed limit which means no matter how much we progress we will never be able to communicate faster than this. That means even after 1000, 10,000 and even 100,000 years you will still be stuck with the same speed cap of communication no matter what.
"You'll have to wait at least 2.6 seconds after sending a message to them before you'd actually get a response" I don't see the problem, this is faster than the amount of time it takes people to message me back here on Earth.
@@1manApocalypse_CP that's how we decided big and tiny, long and short, I mean you need to have another thing to compare... So compared to the universe yeah light is horribly slow... And compared to train and planes it's super fast...
Nice video! One can also add that despite this fact, according to the theory of relativity, the journey of a photon is always instant from its own point of view, no matter how long it actually travels between two locations. And I find it quite funny.
The book, “The Martian” actually addresses the communication issue quite well. I would definitely recommend the read just to see how incredibly accurate the book is.
the Martian is my favourite sci-fi book and movie ever. it feels so realistic. i think future mars expeditions are going to be similar to what they show in this title.
@@madeofcastiron Don't forget National Geographic's MARS tv series which concentrates more on the problems between humans ourselves, I enjoyed every minute of it.
-Hey, how you doing? -Good, watching teletubbies. You? -Nice, I just went to high school. -That's cool, I'm looking for job. -Did you find a job? -Yeah, I quit, got married, divorced and I'm a single mother now. -Doctors said I have dementia. Who are you? I can't remember. -Hey I respond on behalf of your friend, she died of old age 2 years ago.
@@unknownlol5084 Sonic at max with no ability he runs at the speed of sound. Chaos emeralds and all that crap he becomes faster than light I think.. I don't know a lot about sonic's super forms
You would see the typing symbol after 8 years not 4, if your chatting partner is 4 light years away. Because the notification that he is typing takes also 4 years back. So it would be: Sending the message -> seeing the "send" symbol -> 8 years later -> seeing the "read" symbol -> seeing the "typing" symbol -> getting the message instantly after typing disappears.
Raiyyan Shaikh no it’s just below 45 mins, because light takes 22 mins, 24 seconds to get to mars, and then when the person sends the message back that will take another 22 mins and 24 secs, which is 44 mins and 48 secs...
“Light gets even slower when we’re further out” No sir you’re wrong. Light does not slow down. The distance increases, but light does not get slower, it stays at exactly the same speed as it always is.
It feels relatively slower, just like you can say a car traveling at 100km/h feels slower when you have a difference of 100 vs 1000 km distance. That is what he meant
*There are many Levels of Speed:* 1. Sound Speed 2. Light Speed 3. Closing the Incognito Tab when your Parents walk into your room Speed 4. Ludicrous Speed
We’ll have to create some kind of communication network in the solar system with a new technology like we did with wireless repeaters. Imagine hundreds of little satellites orbiting everywhere in the solar system, and capable of transmitting faster than light. No idea how it would work but I think it would be interesting to study.
Transporting data on a spacecraft that could pass the speed of light will probably be the final and best form of long distance communication. Since nothing can physically go faster than light, I'm just gonna assume that's how it's gonna be. There are possible ways to go faster than light like bending spacetime to basically make us go faster than light without defying the laws of physics. If it's possible, manually transporting it would probably be more feasible than using light to transfer information.
It doesn't matter how many satellites you put in space for a faster communication network, it will be the same. This won't get light to go any faster, nor they can communicate faster than light itself.
@@intasarbatool5522 there has been a few successful experiences of « teleportation ». A Chinese experiment found out that atoms have « twins » that behave the same with huge distance between them. I don’t recall where I read that but it was kind of a big thing when they did it. I guess it takes so much money and time between each try, that’s probably why it has been silent for a while. I agree the speed of light is the physical barrier we can not break. Yet.
@@vab120 you sure you're not thinking of quantum entanglement? I think it's been proven a couple times so far but it still has zero stability, so the connections last nanoseconds.
@@thomaswolosik6590 it just wouldn’t of existed probably, if you sent someone a message it would take about 8 years get a response from them, by that time you’d probably of forgotten them 😂
Yes the universe is huge... That's why the perspective looks so small. But the same point he's either lying to us or he's wrong. Google it you'll find out he is totally wrong
Us, humans are 1,000,000,000 times closer to the size of the observable universe than to the smallest length possible also known as the Planck length. So that means we’re actually huge but the universe just has a huge broad spectrum of sizes. This would mean that light speed is NOT slow as for it to move across a size that’s on the big side of the size spectrum, it’ll take a very little time as opposed to the size of the whole universe compared to the Planck length. In conclusion, we are huge and light speed compared to the known sizes of the universe, light speed is actually very fast.
Felipe Castillo i cringed super hard at 4:50 when he said “four point twenty four” instead of “four point two four” ... how did he not catch that when editing?
that pretty much means the only ways people can communicate with others on different planets are... 1.) We discover something faster than light and find a way to use it for communication (like sending messages through a wormhole or something like this) 2.) The lifespan of a human needs to drastically rise to above 1000 years (what would not make it really better to communicate, but better possible since time feels shorter at least for communication in our own solar system) 3.) finding a way to move planets so they are close to eachother without the gravity pulling each one together and find a way to keep life possible for humans because that would be pretty hard too. there might be more ways but those seem like the easiest to me... i would like to see what your ideas are! :D
Hey that's Sirius the star you're pointing out at 5:00 just next to Orion! The actual Alpha centauri solar system (in which proxima centauri is the third star) is far beyond the bottom left corner of the skyview as is the Centaur! Sirius is still pretty close from the earth (8 light-years I remember correctly).
Wait so your saying a message from the moon to earth took 1.8 seconds of lag but me playing online at local servers takes longer than that to send a message
“Light thinks it travels faster than anything but it is wrong. No matter how fast light travels, it finds the darkness has always got there first, and is waiting for it.”
@Shimmy Shai Im quite sure the "ms" doesn't represent megaseconds, but millisecond. Also no one uses the term megaseconds or kiloseconds or any other second that has a character infront of it which represents a value more than 10^0. edit:10^0 means 10 to the power of 0.
The best way to avoid this issue is to find something faster than light. Entangled particles have been known to instantly flip their counterpart's state when observed, and this is theorized to be not limited by distance. Imagine someone built two computers, each with a chip of entangled particles that the CPU was able to control and interpret. One computer could be sent to another planet on the outskirts of our solar system along with a colony. When the colony landed, they could sent messages to earth via the entangled computers instantaneously regardless of the distance between them.
Such a system would have interesting implications for causality. Time isn't a constant; it's relative to the observer. If you can effectively send information faster than light, then you can also send it back in time.
I always thought the speed of light was horribly slow since the day I got thought in school as a kid that light has a speed to begin with. I really thought light was instant until that moment.
Euler's Identity e^iπ + 1= 0 is Euler’s identity In mathematics, Euler's identity[n 1] (also known as Euler's equation) is the equality e i π + 1 = 0 e^{i\pi }+1=0 where e is Euler's number, the base of natural logarithms, i is the imaginary unit, which by definition satisfies i2 = −1, and π is pi, the ratio of the circumference of a circle to its diameter. Euler's identity is named after the Swiss mathematician Leonhard Euler. It is considered to be an exemplar of mathematical beauty as it shows a profound connection between the most fundamental numbers in mathematics.
Megasons3 Plays Sticks and stones may break my bones, but words are merely the smallest element of language capable of containing meaning and isolation and as such could be never directly produce the 4,000 Newtons or force per square centimeters required to break bones.
“Martians will eventually become isolated and feel separate from Earth....” is the basically the backstory of the Halo video game series. Human colonists feel isolated from Earth’s government, they rebel, Spartan project is created to fight rebels. Then the Covenant show up and then that’s what happens in the games.
Not entirely. Mars is still an inner colony, in fact its one of the UNSC's largest sources of ship manufacturing. It was the much father outer colonies that felt separated and exploited. Reach is an inner colony too and thats 10 LY out.
I do wish folks would stop going on and on and on and on about the speed of light... It ain't about the speed of light. It's the speed of causality. Light just happens to obey the rule of the speed of causality.
If you think about it, Having light's speed is basically an instant teleportation. On Earth, you could teleport from one part of the planet to another within 1/14th of a second. And even with such ability , it would still take you 4+ years to reach the "nearest" star. Freaking space, It's unimaginably huge.
Exactly. You cant compare speed to distances in order to call it "slow". The speed of light is the fastest speed possible, therefore it cannot be slow. Any finite speed can be called "slow" if the distance it's traveling is big enough.
Anyone calling lightspeed slow is using a humans lifetime to determine time. In star time light speed is 60 in a 35. But because we have a limited perspective of time, anything beyond time travel is slow
Future person: "Ugh, I hate that it takes 45 minutes to receive a message from my friend on Mars." Pre telegraph person: "Oh well don't you have it tough."
@@Julian-re2ey Actually we wouldn't, gravitational waves travel at light speed, however gravity operates a bit different. Like entanglement if you will, completely bypasses limits, transmission is instant. Gravity has a similar property on a large scale.
Here's a thought, you keep comparing the speed of light to our lifespan. Maybe it's not that light is as slow as you say it is, it's just the we live for such an insignificant period of time, that even a few years (out of 13 billion) is a long period of time for us
So, if we were the size of the universe, with the relevent time-space perception filter, then turning on a (super-bloody-massive) star would light up the universe instantly to our eyes, but still take however many light years to reach the teeny-weeny inhabitants of a very distant self important planet!
damn, yeah, thats pretty valid. I just thought about it. Even if humans lived to a million years old, it would still take 13000 human live spans to reach the beginning of the universe. thats a ridiculous amount of time. In comparison, 13000 current human lifespans is 760,000 years which is still more than 3x longer than humans have been around.
Imagine waiting 44 minutes just to see “same” in your dms.
That's my life what do you mean imagine?
That happens on a daily basis for almost everyone
Don't people already do that though? Lol.
Demidž
@@adamdickinson2894 hahaha.
*Waits 8.5 years for a message to reach a friend on Proxima Centauri*
Imessage: Message Failed to Send
rip
Very relatable if u take the proximia centurai bit out
Nuren Zaynn ok
Me _hey how you doing bro
9 years laters
Him_fine how about you
Task failed succefuly
1800: Damn,my message reached Australia in just 2 months,this is incredibly fast.
2020: *Light is Slow*
then FASTER GRAVITT
"DAMN" in 1800
@@raajkumar8039 "Damn" would've probably been understood wayyy different back then if someone just said it
@@jakubpociecha8819 is there any different specific meaning for "Damn" in 1800s
smhtnom 2 tsuj ni ailartsuA dehcaer tI
"Hey bro wanna meet up on earth today?"
8 years later
"Yeah sure bro"
im afraid for the calendar its days are numbered.
ofc its a dad joke
He’d probably immediately go on a spaceship to not waste time.
@@TurtleSB If "8 years later" is meant to represent the time forward and back from the sender sending and receiving the message, then it would have still taken roughly 4 years for the message to send. So, it would still be wasting time.
Maybe we will live to be 50,000 years old and that will be normal? lol
@@timcollum5015 no way waiting 8 years for a message will be normal. Even if our life span increases, the time won't go faster
1950: We want faster cars
1970: We want faster rockets
1990: We want faster computers
2010: We want faster internet
2020: We want faster vaccine
2050 (Colonizing Mars): We want faster spaceships
2100 (Colonizing space): We want faster babies
2500: We want faster teleportation
*3020: We want faster light.*
2020: We want faster toilet paper
To be fair, faster light would actually help make computers faster.
2020: we want faster vaccine
2030? More like 3030.
Quantum Entanglement. It's instant, no matter the distance. Great for communication.
How to get light to be faster:
1. Record a video of you turning on a lightbulb
2. Put the video on 2x speed or faster
Genius
*Harvard wants to know your location*
Give this man a Nobel Prize
U want a scholarship ?
You Sir, are genius
“It wpuld take over 20 minutes to get a response!”
*people in the 1800s wainting for a month to get a response to their letter*
Edit: I WILL NOT CORRECT THE TYPOS
Exactly my thoughts, he is saying like 45 minutes is super long time. Even when you write an email nobody is getting back to you sooner thab an hour.
Imagine waiting 3 months for her to get back to your letter only for her to reply “ok”
@@danielhricmail what if the message is instructions to avoid dangers for spacecrafts, 45 minutes is death.
@@Marnige In that case sure. But it is not like he said that mars will feel isolated and will want to be independent. Also Mars spacecraft would probably be guided from mars rather then earth.
Daniel but nobody writes email to communicate. Just for business and stuff.
“Hey I’m single”
“Same here”
“I’m married now”
LMAO
@Pewi5 "I am divorced"
@@Vibranium375 "Same here ay"
@@averagebadpiggyenjoyer4974 “i am married again”
@@mubasshirahmed802 "same here lol"
Gamers on Mars:
HOW IS THAT NOT A HEADSHOT
Gaurav Harsule dammit, I love meeting a fellow gamer. You on pc? Let's play some games bruh
@@northlandgaming7913 You seem like a weird fellow, but I'm in.
@@s0ulshot and that's how friendship is born in the internet
... or a case of murder, but whatever
he had a lag switch
Brian Santos 🤣🤣
Me: *complaining about a girl’s response after 20 hours
Literally every Centaurian colonist: *it’s been 86 years*
: seen
I mean after those 8 years you really have no excuse 😂
*Y to SHAME*
titanic meme?
Quantum entanglement is the solution. Whenever we reach that start (if we ever do it), we'll already have far superior quantum computers that'll make us the job, and that thing about waiting for 4,3 years to receive something will only be so whenever we catch something censored from the information flow through the entangled particles.
The video should be titled "why the universe is actually horribly huge"
you know right?
Yeah this video doesn't really show how light is slow. it shows that despite how fast light is, it still takes a long time because of just how big our universe is
Riggity Riz yes
Maybe because "Why the speed of light is actually horribly slow" is more unique and attracts more attention compared to "Why our universe is actually horribly huge" because there are so many videos about the size of the universe.
Agree. There’s nothing that’s is able to travel faster than light, so how can light be slow?
"No, no, light speed's too slow."
"Light speed, too slow?!"
"Yes. We're gonna have to go to--LUDICROUS SPEED!"
If something faster than light is ever discovered, they’d better name it that.
BROOO SPACEBALLS!!! I love that movie!!
*LUDICROUS SPEED GO*
light will soon Throw Them 'Bows
Imagine waiting 4 years just to get a "k"
My crush: **Hold my beer**
@@sophiatheczech1918 you deserve better smh
💀💀💀
Hahaha imagine waiting for a DoorDash order lol
I waited hundreds of years just for a k
Huh, so light speed will become unreliable in the long run?
Sounds like a problem the speed of a Toyota Corolla can fix
😂😂 Nice!
Interestingly, the faster you are the slow the world around you looks and that’s why if you went to the speed of light, time would seem to stop
@@JamesTheFoxeArt so by this logic if i go at the speed of light and travel to another galaxy it would seem as though it was instantaneously for me but hundreds of thousands of years for the 3rd person observing
LifeReadGuy99
Finally, an original comment
@@catman2157 indeed that's true
Imagine complaining about a 45 minute delay when less than a century ago all our long distance communication was done through letters.
Right lol
Instant messaging has spoiled us after all. And if we are talking about Light Speed Messaging, you expect it to be instant rather than 45 mins
Long-distance telegraph and radio have been around since the mid 19th century.
The telegraph existed more than 150 years ago
Comment made: 46 minutes ago
Conclusion - Light is still insanely fast just not when going insanely far distances.
In conclusion our messages and communication are somehow sent through the speed of light
Conclusion: the universe is very big. Like VERY big.
In conclusion, we are small.
Guess I won't watch the video since you concluded it in like 10 words
Thanks Mister Pottah
Me : sends a novel to someone
*10 years later*
Friend: K
lol
@@ortherner And he never gets that response, because he died in a car accident five years ago. Yeah... and people wonder why aliens haven't contacted us yet...
shindari it’s not jsut about them contacting us, we have yet to sense any signal from them for example their radio or tv signals that are unintentionally sent out
@@thavambase6907 Those signals travel at the speed of light. So even if the alien civilization capable of producing those noises is only 500 light years away from Earth (a speck of distance, in the big picture) it would take 500 years for those sounds to reach us.
Meaning that only signals sent out 500 years ago would just now be reaching us. By then, that civilization, for all we know, could have ceased to exist. It's just too much time. Too much distance. If there is no rate of speed faster than light, then the universe is quite simply too big to be traveled in a timely manner.
@@shindari I know all that...but my point is, earth 500 years ago was not modern, but that doesnt mean another civilization was not...each planet's history is different, many planets could have been way more advanced than we are now 1 million years ago...so my point is, we have never received any such signals from any alien planet which is odd because I do believe aliens exist but I understand the limits of physics in the gigantic universe...
Q: Why the speed of light is so slow?
A: Because nobody has been upgrading the universe’s CPU since 14 billion years ago.
Lol, that was on ND Tyson's 'simulation' video the other day... It was a good one.
I don't think we live in a simulation, I think physics is tripppppin'! 🎱⚽⚾🏀🏈🏉🏐
🗿
@@Ludwig1625 lol
When you realize God is using Internet Explorer
@@Ludwig1625 what does that emoji mean
imagine being in a game lobby and it takes 4.3 years "waiting for other players"
"just one more round mom"
Civilization comes to mind "Next turn man!!"
the only game you can hope to play is tic tac
Image playing among us like that. The whole game will end and then the message comes- ' I saw red vent boiz. GG'
I'm sure there will be proxima centauri b based servers
Hahaha graduates college by then lol
Fun fact: There is no “time” for light. Photons that move at speed of light do not age. Universe is 13.7 billion year old, but even for the first photons that appeared in this universe, no time has passed.
Do you mean time is fake?
@@bezimienny1337 No, it is relative to speed
@@precursors what will happen if i got to speed of light? Or even faster than light? Yes i know it is imposible i just want to know
@@bezimienny1337 if you go at the speed of light time would stop and faster than light time would go backwards
@@Checkmate803 If I go faster than you, will I age slower than you?
Rhetorical question because speed has nothing to do with time.
5:24 So, your essentially saying that the Internet Explorer headquarters is on Proxima Centauri
Yes
Lol
Ikr lol xD
Yeah.....
@Pearce White yes they do. Y e s t h e y d o.
Imagine sending an essay message on mars and you wait 45 whole minutes for them to just say “k”.
Imagine waiting 8 years for them to say 'k'!
imagine waiting 1.12 billion years just for them to say "k!"
Dancingdog Waiting 72 centillion years (I’m pretty sure the universe will end beffore then) just for the person to say I don’t like it do another essay
Copied
Imagine waiting 1 trillion days to say k
Light: literally the fastest thing ever
Real life lore: *pathetic*
Us, humans are 1,000,000,000 times closer to the size of the observable universe than to the smallest length possible also known as the Planck length. So that means we’re actually huge but the universe just has a huge broad spectrum of sizes. This would mean that light speed is NOT slow as for it to move across a size that’s on the big side of the size spectrum, it’ll take a very little time as opposed to the size of the whole universe compared to the Planck length. So if there was a scale ranging from the Planck length all the way to the observable universe then the distance that light speed could travel in a certain amount of time such as the age of the universe would mean light speed would be would be BILLIONS AND BILLIONS times closer to the size of the observable universe than the smallest length ever known and considered the smallest length possible. In conclusion, we are huge and light speed compared to the known sizes of the universe, light speed is actually very fast.
Niiigaaaa
@sacr3d g6om9try The universe can expand faster than light but everything inside the universe can only go as fast as light.
Darth Vader 📠
@sacr3d g6om9try k
Light isn't slow, it's just that the universe is so big it makes everything look slow.
@@plague_d8672 Slow
IT IS slow, u think it's fast just bcs u live on earth. In earth scale ofc it'd look fast but on a cosmic scale it's stupidly slow
no shit einstein 🤓
@Benny Pepper you gotta admit dude light is always fast, i'll paste for you my comment:
@Benny Pepper ALSO, if you think that the universe is small then that's because you live on earth, in earth scale the universe looks so small but in cosmic scale it is so big.
Me: Hi
My crush: *Living in Andromeda*
im crying omg i-
Have fun waiting for over 5 million years for a response.
They'll be the same galaxy
@@eduardoxenofonte4004 I don't think u understand...
@@Raizuke. I don't think you understand
I love how he's casually talking about messaging your friend on Mars.
Hey I mean in 20 years that could be a thing
Right!? I mean, who has friends anyway?
Yes
@@RussellGraf T^T
MultiArrow123 in 20 years if Elon musks goal is realized then there’ll be a dang town up there with at least 600,000 people
Jokes on you, my friends don't even respond to me on earth.
Sorry to hear that.
No, I'm not his friend. This response doesn't count.
Jokes ob you, I dont have a friend
@@coolguy3848 what is friend
Mohammed Avdol I will pay you to be mine
You guys got friends?
Imagine what it was like just two or three hundred years ago when it took months to send and receive messages between Europe and the New World or Europe and Asia. A really big problem back then was that you didn't know if your message would ever arrive due to problems with the ships.
Only thirty or forty years ago telephone communication between the US and Europe was subject to a noticeable lag. You had to be patient to let the other person respond.
And just 10-15 years ago, today's cell phones/social media didn't exist.
Sure, it feels good to know how much we've progressed but this is the universal speed limit which means no matter how much we progress we will never be able to communicate faster than this. That means even after 1000, 10,000 and even 100,000 years you will still be stuck with the same speed cap of communication no matter what.
"You'll have to wait at least 2.6 seconds after sending a message to them before you'd actually get a response"
I don't see the problem, this is faster than the amount of time it takes people to message me back here on Earth.
@Pushyamitra Gurethia I'm sorry you experience that
How do you know they just don’t wanna reply
@@chimp4225 Oh, I don't, and frankly I wouldn't be surprised if that were the reason.
@Pushyamitra Gurethia oof
It’s not slow, it’s just that space is unbelievably vast.
Yeah I was gonna say that, seems kinda misleading, light is the fastest thing in the universe so it's not slow, it's just space is big.
1manApocalypse yeah but that’s the point, light is horrifically slow compared to the scale of the universe
Same things
@@1manApocalypse_CP that's how we decided big and tiny, long and short, I mean you need to have another thing to compare... So compared to the universe yeah light is horribly slow...
And compared to train and planes it's super fast...
*s* *p* *a* *c* *e*
Her: Why were you late on responding?
Him: Sorry babe, I'm on Mars.
lol
Peele: But did you say bitch tho.
23 more minutes for her to say ok
Him : why are you fucking someone else?
Her : because you are a man that allows his girl to ask you why you are late responding
Elon Musk?
After 4 years, people on Proxima Centuari have finally received this video.
It’s actually still another 2 months until this video reaches Proxima Centauri, June 10 at approximately 4:00 p.m. CDT to be precise.
@@RealMatthewMorgan damn your right accounting for the fact proxima centauri is actually like 4.3 ly away
@@RealMatthewMorgan Ha, it's been five days since Proxima Centauri got this message!
“People shouldn’t get upset if someone doesn’t respond immediately from Mars”
If someone’s getting upset over 45 minutes then they’d hate my friends
These people would probably have ambitions to kill me, because they hope I might respond faster being contacted in a satanic ritual as a dead entity
Are these friends or "friends"?
Wait until you here about my mom
The consequence of computer network communications in today's world is that people have a shorter attention span.
Trust issues so bad that I was ready for a jumpscare when the dude was using the flashlight..
lol me too
It was like that house in "slender arrival" game
same i hate the internet
Same xD
Y’all need friends
@@shahidkarim9910 be my friend
The fastest thing we know of is actually really slow
Then what should I call my internet connection? Extremely slow?
Hyper slow
Actually If your internet is Fiber optics Your data Pass As quick as Light
yes
Well, your internet connection is probably the fastest one you can ude.
Mc Donalds slow
Nice video!
One can also add that despite this fact, according to the theory of relativity, the journey of a photon is always instant from its own point of view, no matter how long it actually travels between two locations. And I find it quite funny.
The book, “The Martian” actually addresses the communication issue quite well. I would definitely recommend the read just to see how incredibly accurate the book is.
Damn now I miss watching it
the Martian is my favourite sci-fi book and movie ever. it feels so realistic. i think future mars expeditions are going to be similar to what they show in this title.
@@madeofcastiron Don't forget National Geographic's MARS tv series which concentrates more on the problems between humans ourselves, I enjoyed every minute of it.
@@sdm000 will they release 3rd season? ?
@@jaikumar848 I don't really know, hope they will make it tho😅
-Hey, how you doing?
-Good, watching teletubbies. You?
-Nice, I just went to high school.
-That's cool, I'm looking for job.
-Did you find a job?
-Yeah, I quit, got married, divorced and I'm a single mother now.
-Doctors said I have dementia. Who are you? I can't remember.
-Hey I respond on behalf of your friend, she died of old age 2 years ago.
Haha
@@zorreid5191 ,,haha"
10 -20 years on each message hahah
*interstellar intensified *
thats actually weirdly sad
So my crush lives in the andromeda galaxy, that's why she isn't replying
😂😂 your 500th generation will respond for you
@@shalyfemusic Not even that it takes over 2,5million years to light travel to there
@@shalyfemusicit actually is 35 714th generation until his crush would see his message lol
@@vivanity9750 no by then we will be immortal
@@shalyfemusic I just gave an example how long it would take
“Light is the fastest thing you can imagine”
Clearly you’ve never chased a dog who has something in his mouth he’s not supposed to
What about the dog that escapes the house without his leash and he thinks it's playtime?
*me texting my crush in andromeda*
me: hey do u wanna hang out later?
*2.5 million years later*
her: nah I'm busy rn
You mean 5 million years later
Couse it has to get there and come back
She still walking her dog
@Frank your saying that the woman would wait 10 million years just to respond?
@@gamingscott7770 well of course
Well in 5 billion year your gonna be together no matter what
Correction: light speed is not slow rather the universe is unfathomablely vast
True
Which make light slow in the universe
Exactly
both are true and false at the same time, it's just a matter of perspective
Everything is relative!
Moral of the story: Sonic isn’t that impressive.
Sonic you’re slower than light you snail
Don't know man Galeem didn't stand a chance against the kirby made warp star.
Considering the fact that Sonic is massively faster than light, I'd say he's still impressive.
Arche sonic though.
@@unknownlol5084 Sonic at max with no ability he runs at the speed of sound. Chaos emeralds and all that crap he becomes faster than light I think.. I don't know a lot about sonic's super forms
Me: wow the speed of light is so fast
RLL: well actually
Imagine waiting 44 minutes just to see ur crush “read” the message
Dude I feel that.
That's taking long distance relationships to a whole nother level
that happens already anyway.
Nice steal on the comment lol
@@kennethbryant5819 that's a mood
Now I’m gonna use “I could have texsted someone on Mars” when someone takes an hour to respond
Ahahhha ;D
I once took 8 months to respond😬
Monré MK That’s a bruh moment
@@monrekoze1268 you're a horrible person
I once replied someone after nearly 3 years.
I hated that, felt it was too late lol
"If light is so fast, than why does the dark get there first"
Then*
dark is the absence of light, WTF are you saying?
@@patrickgomes2261 you missed the joke
because the speed of dark is faster
@@usernametaken017 he was joking?
"Why the speed of light is actually horribly slow"
Keqing: 👁👄👁
Imagine after 4 years you just see “Typing...”
69th like lol
You would see the typing symbol after 8 years not 4, if your chatting partner is 4 light years away. Because the notification that he is typing takes also 4 years back.
So it would be: Sending the message -> seeing the "send" symbol -> 8 years later -> seeing the "read" symbol -> seeing the "typing" symbol -> getting the message instantly after typing disappears.
Not if it was 2 light years
Mars: *sends a message to earth that it will be destroyed in 22mins*
Earth: *gets destroyed 24 seconds before it got the message*
Pearl Harbor feelings.
😂
Lmao
Mars: bro in 23 minutes an astroid will hit you
How would that even help?
Me to Mars Girl: Hi
44 minutes later
Mars Girl: I have a boyfriend
You'd get her message after waiting for 88 mins though 😆
Raiyyan Shaikh no it’s just below 45 mins, because light takes 22 mins, 24 seconds to get to mars, and then when the person sends the message back that will take another 22 mins and 24 secs, which is 44 mins and 48 secs...
@@joshuabeckford6815 That's assuming they responded immediately
Raiyyan Shaikh wow we didn’t know that’s for pointing that out!
44 min *if she replies instantly...*
Expect bout 9hrs plus 44mins
“Light gets even slower when we’re further out”
No sir you’re wrong. Light does not slow down. The distance increases, but light does not get slower, it stays at exactly the same speed as it always is.
It feels relatively slower, just like you can say a car traveling at 100km/h feels slower when you have a difference of 100 vs 1000 km distance. That is what he meant
*There are many Levels of Speed:*
1. Sound Speed
2. Light Speed
3. Closing the Incognito Tab when your Parents walk into your room Speed
4. Ludicrous Speed
U gotta put tachyons over the top cuz that particle is said to be faster than the speed of light ..
5. *Your ex when you are about to kiss her*
6. Very fast doggo running at incredible hihg speed
Patrick's rock speed
@Paul Lamonte what era are you from? Do you still remember the dropping of the atomic bomb?
imagine waiting 2hrs just to see "joe mama" in ur dms
I pee at the side of my toilet to make less noise,does anyone do the same?
Compared to a infinite multiverse, the universe is infinitely small
@@meghanachauhan9380 thanks for the woosh mate.
@@meghanachauhan9380 No,seriously,thanks a lot
al dajjal shah-e-dunya
Stupid
Bron Jemin not funny
We’ll have to create some kind of communication network in the solar system with a new technology like we did with wireless repeaters.
Imagine hundreds of little satellites orbiting everywhere in the solar system, and capable of transmitting faster than light. No idea how it would work but I think it would be interesting to study.
Transporting data on a spacecraft that could pass the speed of light will probably be the final and best form of long distance communication. Since nothing can physically go faster than light, I'm just gonna assume that's how it's gonna be. There are possible ways to go faster than light like bending spacetime to basically make us go faster than light without defying the laws of physics. If it's possible, manually transporting it would probably be more feasible than using light to transfer information.
It doesn't matter how many satellites you put in space for a faster communication network, it will be the same. This won't get light to go any faster, nor they can communicate faster than light itself.
@@intasarbatool5522 there has been a few successful experiences of « teleportation ». A Chinese experiment found out that atoms have « twins » that behave the same with huge distance between them. I don’t recall where I read that but it was kind of a big thing when they did it. I guess it takes so much money and time between each try, that’s probably why it has been silent for a while.
I agree the speed of light is the physical barrier we can not break. Yet.
@@vab120 you sure you're not thinking of quantum entanglement? I think it's been proven a couple times so far but it still has zero stability, so the connections last nanoseconds.
@@Cavemanner yup. But you know we’ve barely scratched the surface about this. It’s going to take time.
Imagine long distance relationship between Earth and Mars... 😂
Or long distance relationship between Earth and Proxima Centauri.....
@@thomaswolosik6590 it just wouldn’t of existed probably, if you sent someone a message it would take about 8 years get a response from them, by that time you’d probably of forgotten them 😂
We’re gonna be dead by then
that’s exactly what i was thinking LMAO
"Why he not responding, is he cheating on me"
"it'll take about 45 minutes before you get a response"
I'm sorry, was that supposed to be something out of the ordinary?
Leftylizard it will be an extra 45 minutes because when they finally answer you’ll have wait again
you guys are getting responses??
Trickz Clipz you guys have someone to talk to?
Smite Default Voice Pack felt that 😔
So technically... this guy is telling us that everything is slow.
Or the universe is huge
I’m not changing that 69 likes
Yes the universe is huge... That's why the perspective looks so small. But the same point he's either lying to us or he's wrong. Google it you'll find out he is totally wrong
@@JohnPlataIII wrong about what? The universe IS huge
Us, humans are 1,000,000,000 times closer to the size of the observable universe than to the smallest length possible also known as the Planck length. So that means we’re actually huge but the universe just has a huge broad spectrum of sizes. This would mean that light speed is NOT slow as for it to move across a size that’s on the big side of the size spectrum, it’ll take a very little time as opposed to the size of the whole universe compared to the Planck length. In conclusion, we are huge and light speed compared to the known sizes of the universe, light speed is actually very fast.
imagine going to moon in just 1 second
"meters p/sec"
I'm just gonna leave this monstrosity here.
I was just searching for this comment
I was gonna complain about how he illustrated the rings around Uranus, but that seemed too personal.
When I saw that, I cringed. I almost stopped watching the video...
Felipe Castillo i cringed super hard at 4:50 when he said “four point twenty four” instead of “four point two four” ... how did he not catch that when editing?
@@stack8854 both are valid...
“Instant”
Me: *has 300 ping playing games*
You lucky, I get about 2000 ping when a new map loads in tf2
@Kim my you lucky, mine said to tetrate ten. It spends more effort finding out how slow it is than it does loading anything.
Pathetic
I get 2000 ms in doomspire brickbattle
@@vinnocentss pathetic.
My ping doesn't even fit on the screen
@@vinnocentss Pathetic I get 5000 Ping in Minecraft using my Wifi Sometimes it reaches 20000 Ping lmao I just quit when that happens
Maturity is when you realise people of mars would respond faster than your friends
I wanna like but its on 69
@@catgirl_ava please shut up
@@donkeychad7982 man woke up and chose violence damn bro
@@black0ut77 I’ve seen many of these comments and it’s getting annoying
Imagin texting with your friends who are on mars
that pretty much means the only ways people can communicate with others on different planets are...
1.) We discover something faster than light and find a way to use it for communication (like sending messages through a wormhole or something like this)
2.) The lifespan of a human needs to drastically rise to above 1000 years (what would not make it really better to communicate, but better possible since time feels shorter at least for communication in our own solar system)
3.) finding a way to move planets so they are close to eachother without the gravity pulling each one together and find a way to keep life possible for humans because that would be pretty hard too.
there might be more ways but those seem like the easiest to me... i would like to see what your ideas are! :D
Humans: Sends Messages to aliens using really powerful technollogy
Aliens: *K*
K
K
K
k
K
Me texting my bro in the nearest star: hey where are u
*4.3 years later*
Bro: *yes*
No, it’s 8.6+ years
Isn't the nearest star the sun-
@@c3lxtia124 then wouldn’t it be like 7 mins or something?
@@nutterbutter1352 16
@@newavplol oh yea forgot it has to go back as well
"speed of light is horribly slow"
imagine reaching moon in 1.2 seconds
DACHI YT yeah that’s incredibly slow!
*slow*
@@jasonknott6787 It wouldn't "feel" faster, it would be faster to the person traveling to the moon, to the observer it would take 1.2 seconds.
Hey that's Sirius the star you're pointing out at 5:00 just next to Orion! The actual Alpha centauri solar system (in which proxima centauri is the third star) is far beyond the bottom left corner of the skyview as is the Centaur! Sirius is still pretty close from the earth (8 light-years I remember correctly).
Wait so your saying a message from the moon to earth took 1.8 seconds of lag but me playing online at local servers takes longer than that to send a message
fellas playing csgo on the moon
Nobody :
RLL roasting light for 8 minutes straight
Wait, 8 minutes? Is that intentional?
@@gavinwilson5324 YeS
Just in time that light from the sun doesnt fight back
What if you started this video when the sun disappeared and at the end of the video you notice
Ligh from the sun takes 8 min and 10 seconds to reach us so OP is talking 5h1t about ligh before ligh come and find out.
The problem is that when you are faster than light is that you can only live in darkness....
-Sonic the Hedgehog
"Just imagine a very smart and deep quote here"
-Me
@@ObeseGorilla229 "I got you fam!"
-Master Yoda
She said she was 18
-Glenn quagmire
“Do you have want is die?”
-titties
kkkkkkkk.... sonic fan
“Light thinks it travels faster than anything but it is wrong. No matter how fast light travels, it finds the darkness has always got there first, and is waiting for it.”
Meanwhile in Internet Explorer:-
1st case of corona virus detected in China.
Lool
No it’s more like: Stay safe because of the Ebola Virus
More like 1st case of ebola
ABDOU ABOUD the Black Death is spreading around Europe as we speak
more like “Deadly H1N1 Virus breaks out doing war”
1:44 so basically u get 1225ms or ping when on the moon, imagine playing games on the moon with 1k ping
I get more than that ms and Im still on earth. (no joke)
I've seen 1.5k Ms people while playing no joke
@@hircine92h I feel you on another level
@Shimmy Shai Im quite sure the "ms" doesn't represent megaseconds, but millisecond.
Also no one uses the term megaseconds or kiloseconds or any other second that has a character infront of it which represents a value more than 10^0.
edit:10^0 means 10 to the power of 0.
@@c1rcles438 lowercase m = mili- uppercase M = Mega- as in Mega - Byte
Writing a breakup paragraph to your Martian gf and she replies with “Let’s play 8ball!”
I'mma assume a female wrote this
I have to say... men 99% of the time reply with "let's play 8ball" rather than women
THE GOATED why
TheAmateurLancia um, ok then
You do realize every move would take 3-22 minutes to show on the other end right? xD That game could take hours
The best way to avoid this issue is to find something faster than light. Entangled particles have been known to instantly flip their counterpart's state when observed, and this is theorized to be not limited by distance. Imagine someone built two computers, each with a chip of entangled particles that the CPU was able to control and interpret. One computer could be sent to another planet on the outskirts of our solar system along with a colony. When the colony landed, they could sent messages to earth via the entangled computers instantaneously regardless of the distance between them.
All highly hyphotetical
Such a system would have interesting implications for causality. Time isn't a constant; it's relative to the observer. If you can effectively send information faster than light, then you can also send it back in time.
"Which looks like this in real time."
Excuse me?
In real time, it would have taken eight minutes. In that model, it was taking about 15 seconds.
Thank you.
Yeah that was a weird editing choice lol
i think he meant "to scale"
@@Anamamamams But the model wasn't to scale either ;/
thats whaT i WAS THINKING
Imagine waiting a decade only to see an „ok“ from your Crush ._.
Well I know how it feels like
Kumar The Cowboy F in the Chat
ok is not a bad answer, it depends on the question
Puviarasu Purushothaman „Wanna Fuck“ -„Ok“
I think it's still worth it.
1:01
WTF ist this?
"...meters p/sec"
meters per per second?
Please just use the normal way to write it:
m/s
No one cares actualy
@@RedianRed no 1 cares
It's for us simpletons.
Photelegy i cringed really hard and then laughed😂😂
It's a hot mess. Should have just stuck to standard measurements
I always thought the speed of light was horribly slow since the day I got thought in school as a kid that light has a speed to begin with. I really thought light was instant until that moment.
“You’ll have to wait at least 2.6 seconds for a response.”
Simps after being left on read:😳
Euler's Identity e^iπ + 1= 0 is Euler’s identity
In mathematics, Euler's identity[n 1] (also known as Euler's equation) is the equality
e
i
π
+
1
=
0
e^{i\pi }+1=0
where
e is Euler's number, the base of natural logarithms,
i is the imaginary unit, which by definition satisfies i2 = −1, and
π is pi, the ratio of the circumference of a circle to its diameter.
Euler's identity is named after the Swiss mathematician Leonhard Euler. It is considered to be an exemplar of mathematical beauty as it shows a profound connection between the most fundamental numbers in mathematics.
Good good we must put the simps 30 lightyears away from the girl they are simping for
@@wateroxygen7920 get a life
Megasons3 Plays
Sticks and stones may break my bones, but words are merely the smallest element of language capable of containing meaning and isolation and as such could be never directly produce the 4,000 Newtons or force per square centimeters required to break bones.
@@wateroxygen7920 ..........................
People on earth: hi
People on mars: …
22 mins later
People on mars: hello
Person on earth: *_I just watched a whole hermit craft episode_*
AYY HERMITCRAFT!!
45minutes*
Bfb_Pencil hermitcraft is the best
Hermitcraft is amazing!!
“Martians will eventually become isolated and feel separate from Earth....” is the basically the backstory of the Halo video game series. Human colonists feel isolated from Earth’s government, they rebel, Spartan project is created to fight rebels. Then the Covenant show up and then that’s what happens in the games.
Halo irl srsly id love that
Better yet, the Expanse...
nice to see another halo fan
What if halo predicted the future? Guess we'll never find out ):
Not entirely. Mars is still an inner colony, in fact its one of the UNSC's largest sources of ship manufacturing. It was the much father outer colonies that felt separated and exploited. Reach is an inner colony too and thats 10 LY out.
I do wish folks would stop going on and on and on and on about the speed of light... It ain't about the speed of light.
It's the speed of causality. Light just happens to obey the rule of the speed of causality.
"Light speed too slow??"
"Yes. We'll have to go straight to.... LUDICROUS SPEED."
They've gone to plaid!
Is that an F777 refrence or I am stupid.
@@Nexandr you're stupid, its a Spaceballs reference
BlazeGamingUnltd you play geometry dash?
@@chomato4180 yes
Human: Light is horribly slow
Light: look who's taking.......
Look who’s Englishing
Me : had breakfast???
She : my dinner is over
Me : well then good night
She: wtf it's morning
That just sounds like me talking to my brother in Oz...
what
@mr red maybe 1 is in china and 1 in eu
What?
@mr red LONG long distance relationship lol
If you think about it, Having light's speed is basically an instant teleportation.
On Earth, you could teleport from one part of the planet to another within 1/14th of a second.
And even with such ability , it would still take you 4+ years to reach the "nearest" star.
Freaking space, It's unimaginably huge.
technically the nearest star is the sun
We're just going back to regular mail speeds, people won't send a "hey" anymore but probably something that would fit a postcard
exactly
thats why he said that instant messaging will become impossible. Not regular messaging
Albert Einstein: *-Has birthday on 14th March
RealLifeLore: *Why the Speed of Light is Actually Horribly Slow*
Aniruddha Karkhanis March 14 is also pi day
No one cares about pi day
My teacher made me do h\w for it
Really? Lol I’m dumb. Happy birthday Albert Einstein!!!
@@oliverm1255 are you like, 10?
Thumbnail: why light is actually super slow
Light: *cries in death note*
Antonio Blazevic underrated comment😂
@@gsingh7907 not every one gets animemes bit it did made me laugh
Lmao
4:42 "...so light gets even slower when we get even further out" I don't think that's right, but I think I know what you meant.
Nobody:
RealLifeLore: why the fastest thing in the universe is slow
Exactly. You cant compare speed to distances in order to call it "slow". The speed of light is the fastest speed possible, therefore it cannot be slow. Any finite speed can be called "slow" if the distance it's traveling is big enough.
@@perperperpen dude speed is distance with ratio to time,of course you have to compare them.
Anyone calling lightspeed slow is using a humans lifetime to determine time. In star time light speed is 60 in a 35. But because we have a limited perspective of time, anything beyond time travel is slow
@@perperperpen there have been theories that challenge the idea that the speed of light is the fastest possible.
RealLifeLore: text messages go as light
Ah my friends must be living on Mars with their response times
Ah my crush must be living on the edge of the Universe with her response times
@@sophiatheczech1918 because no when it hasn’t it’s funny because of that’s hello 😉😉😉😉😉😉😉😉😉❤️☂️❤️☂️❤️🍷👏😁👏👏😁👏👏👏👏☂️👏🙂👏👏😐😏❤️😍
@@jarlfced emoji warrior
so my friends live on europa k thats cool
Proximus Centari to Earth in 2024: Hahaha, these trollface memes you sent us are so funny!
Earth: *ok boomer*
@Alec LunaEarth : .!.!.!.....!......!.....!!!......!
Yeah but Earthlings will also be behind on the Centauri memes.
Problem?
The fact that we feel more motivated to learn actual science from the internet than the boring random stuff we are taught in school
Future person: "Ugh, I hate that it takes 45 minutes to receive a message from my friend on Mars."
Pre telegraph person: "Oh well don't you have it tough."
Just wait a year and it'll just be 6 minutes!
@@centauria9122 Next will be instant communication to anywhere in the Solar System.
Back in my days! I have to cross thousands of mountains just to send my assignments to my teacher!
Fun fact: If the sun vanishes, we would orbit around nothing for 8 minutes.
Yeah, because gravity also operates at light speed. But because nothing just vanishes, I don't think this will never cause any problems.
@@Julian-re2ey Actually we wouldn't, gravitational waves travel at light speed, however gravity operates a bit different. Like entanglement if you will, completely bypasses limits, transmission is instant. Gravity has a similar property on a large scale.
@@xenojester13 gravitational waces are not instant
insaneweasel1 waves travel but gravity itself is more complex (really research why) too much to type
@@xenojester13 I have studied relativity (special and general). Gravity is complex but google gravity waves.
Here's a thought, you keep comparing the speed of light to our lifespan. Maybe it's not that light is as slow as you say it is, it's just the we live for such an insignificant period of time, that even a few years (out of 13 billion) is a long period of time for us
that's a very valid point
Maybe in the near future, we would evolve to live longer. Which means that the time wouldn't matter as much.
So, if we were the size of the universe, with the relevent time-space perception filter, then turning on a (super-bloody-massive) star would light up the universe instantly to our eyes, but still take however many light years to reach the teeny-weeny inhabitants of a very distant self important planet!
damn, yeah, thats pretty valid. I just thought about it. Even if humans lived to a million years old, it would still take 13000 human live spans to reach the beginning of the universe.
thats a ridiculous amount of time. In comparison, 13000 current human lifespans is 760,000 years which is still more than 3x longer than humans have been around.
he’s just getting his clicks. also, this point makes no sense because “slow” is a meaningless, relative label.
I guess my crush must be living on Proxima Centauri B.