> RG > how-time-becomes-space-inside-a-black-hole-pbs-space-time

How Time Becomes Space Inside a Black Hole | Space Time

PBS Space Time - 2017-03-30

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE

Find out how time and space switch roles when we move beyond the event horizon of the black hole. And try Crunchyroll at https://www.crunchyroll.com/spacetime

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Referenced Videos:

What Happens at the Event Horizon
https://www.youtube.com/watch?v=mht-1c4wc0Q&t=48s

The Phantom Singularity
https://www.youtube.com/watch?v=-q7EvLhOK08

The Geometry of Causality
https://www.youtube.com/watch?v=1YFrISfN7jo

Previous Episode:
Superluminal Time Travel
https://www.youtube.com/watch?v=HUMGc8hEkpc

Help translate our videos! https://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7g

Written and Hosted by Matt O’Dowd
Produced by Rusty Ward
Graphics by Grayson Blackmon
Made by Kornhaber Brown (www.kornhaberbrown.com)

Comments answered by Matt:
Colin Brown
https://www.youtube.com/watch?v=5l1KxgHH2Ek&lc=z13ngfyxvvq5ivsys04cfxaz1pezv51ribs

Feynstein 100
https://www.youtube.com/watch?v=5l1KxgHH2Ek&lc=z13bjxuafpqnckzkktncsv2yhmq0xkzk

Dankulous Memelord III
https://www.youtube.com/channel/UC3RPD2BWHliH5QJrGl-XYlw

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A S - 2019-01-14

It's a trap. once you start clicking you enter an infinite tunnel of links to more videos, been stuck here for 40 days and 40 nights

Celeste Flenory - 2020-03-03

@Winston Knowitall LMBO!!! I wondered when I would be able to get off this train. But...I just can't look away.

Winston Knowitall - 2020-03-03

@Celeste Flenory Right. There's no escape. Only more and more knowledge.

pikiwiki - 2020-03-04

will send crunchy rolls

Peter Griffin - 2020-03-12

I almost feel a disassociation from my human side when diving into these concepts, oddly satisfying though.

Fjj Chj - 2020-03-16

Yeah I'm there too. Every single suggestion is on black holes haha

רותם שלו - 2018-04-28

I don't like all the "I'm in highschool and feel dumb AF like if you agree" comments.
1. this is one of the only channels I found to actually talk science. like he said in the ending, this channel presumes you know the basics, unlike popsci and stuff like that that take twenty minutes of the same explanation heard twenty times just to get close to a level like this
2. just go and learn that stuff, don't complain but instead try to understand, whining is only diluting the comments with no new information

Geckobane - 2019-10-22

Actually, I find those comments quite human and funny, if slightly anti-intellectual. If you had five people around a campfire in the wilderness listening to two really smart friends deep dive into the nature of reality, the same awed mild comprehension feeling would come across and be expressed. I'm happy to sit at the campfire of this channel.

jjhassy - 2019-10-29

רותם שלו I’m in high school and feel dumb af reading ur comment

Bernd DasBrot - 2020-01-23

@Fermion isn't that high school curriculum?

Fermion - 2020-01-23

@Bernd DasBrot Depending on the high school, possibly.

But the point of that particular series isn't the level of difficulty, but viewing math problems from a different perspective.

If you're already comfortable with basic Calculus, think of it as a creative problem solving course. All of his playlists hold amazing value, regardless of your skill level.

arman757 - 2020-02-21

You guys need calculus in your lives. Basic arithmetic and algebra are akin to a photograph, calculus is more like a movie

multitimmytiger2 - 2019-06-28

Me: So cool that you can see the stars through his shirt!
Me later: wipes dust off screen

DCUO COVEN - 2017-06-16

If science were taught like this to me in school, I and many others would have devoted our lives to it. Alas, at my age, I can only marvel at the beauty of the universe through the amazing explanations provided by Matt and PBS Digital Studios. Thank you so much.

Feint - 2019-03-24

in the future, all school will be taught by the most popular YouTubers and all other teachers will lose their jobs because they didn't get enough likes and subscribers.

Scotty - 2019-07-27

what you're saying is a paradox, you have to be interested in the 'boring' stuff to make it anywhere near the 'cool' stuff. I've encumbered lifelong debt for just 3 years of the 'boring' stuff and I'm not even slightly close to actually having any involvement in the 'cool' stuff hahaha. I'm only in engineering too I couldn't imagine the distance I still must be from the foundation needed for theoretical research.

Reunite The British Empire - 2019-11-19

@Scotty Berkeley?

D. Demented Engineer: C99 is ur friend. - 2019-12-25

@Scotty That sounds about right. These rising education costs cannot be realisitcally sustained. You took engineering? Great. To what end?

Bernd DasBrot - 2020-01-23

@Scottynobody is particularly interested in simple math like functions, it's the prospect of doing greater things with it that make people interested. Also the mastering of the task itself can make a task interesting, no matter what the task is. Learning the basics of math though won't be all that "interesting".

David Brinkerhoff - 2017-03-30

Brought to you by Crunchyroll...because we know you nerds watch anime.

Prowler Cam - 2019-11-20

Do they have anime like "Elfin Lied"?

Toni Makkaroni - 2019-11-30

Weebs.

Prowler Cam - 2019-11-30

@Snapchat Joe - No no, luxuretv for the win.

abhishek roy - 2020-01-11

@Moses Alazzawi enjoy living in your well.

DynamicWorlds - 2020-03-08

El Psy Congroo
https://youtu.be/tz-L_sgaLUY
https://www.youtube.com/playlist?list=PL6KfkZ0mEfNi6AeBasB9qDBFeWrrX-IKB

(Seriously people, watch this if you haven't. Thank me later)

Arnon Tillmann - 2018-04-16

Got it, finally. Had to watch every video on this channel 5 times.

vadda afffg vxfvd dfvgg fdvff f - 2020-03-15

You must be real slow buddy!

Viral Architect - 2017-04-16

This is one of the few channels where, when I'm told that I need to watch a previous video, they are correct. There's a LOT to understand here.

NameNotAlreadyTaken2 - 2019-08-07

Kind of explains where some of the concepts at the end of Interstellar came from. Still a goofy ending, but now I see some of the inspiration.

michi22RSN - 2017-04-30

Wouldn't you get grilled by the Light from the collapsing star below the event horizon?

Daniel Ellis - 2017-04-04

I love watching stuff like this and pretending I understand

Honey Babou - 2019-10-29

It's poetry, you're not supposed to understand every word. Just enjoy how it resonates with you!

aman verma - 2019-11-10

At least we learn some things 🙂

Marcus Irwin - 2020-02-11

@Michael Meek Except when they don't.

JoeyNyesss - 2020-02-17

I was the same but keep watching them and you just pick up the information and it begins to make sense

pikiwiki - 2020-03-04

i rakkanize sum deze werdz

Safwan - 2017-04-09

I watch these kind of videos whenever I get depressed. Lol..

Jan Berrios - 2019-05-14

That's extremely bizzare. This should worsen your depression, if you're not here to learn that is.

Saint Michael - 2019-06-03

You fuckers make me laugh.

“I’m depressed.”

Lol for what?

Patrick Simmons - 2019-08-21

LET THAT HEART EAT, dont come up on false hopes, its better to stay depressed and LET THAT HEART EAT!

Unknown Artist - 2019-10-23

@Saint Michael for the laughs!

Ansh Gupta - 2020-03-12

@Unknown Artist deep

trevorwoods - 2019-07-28

"Kado the answer" and "Stein's gate" are your anime's if you like this kind of thing.

famitory - 2017-04-23

in standard spacetime, accelerating through space requires the exertion of force on another body, or the emission of radiation. what would an object have to do beyond the black hole, in order to accelerate through the newly traversable "time" dimension?

Mark Tarkany - 2017-05-07

Chrunchyroll!?

elvancor - 2017-11-30

Watch Cowboy Bebop episodes one hour after they've aired! ... wait what?

Richman 4066 - 2018-04-26

elvancor #TimeTravelConfirmed

DynamicWorlds - 2019-07-30

Indeed!
El Psy Congru




Go watch Stein's Gate (quite arguably the best story about the act of time travel ever told).

Binyamin Tsadik - 2017-04-03

So basically time can be viewed spatially because all of causality is sitting around for you to select which part of it to observe, and space is temporal because you're traversing it at a non-negotiable rate towards the inevitable singularity?

Reunite The British Empire - 2019-11-19

@John Scott Ko

Sarojini Chaudhury - 2019-11-20

It will take 20 billion years to reply ( to understand something ),and by that time we will be millions of light years away , inside a Black hole ....

Donald Kasper - 2019-12-08

Time has no spatial extent and is not convertible to space. The idea just means they have no clue what a black hole is.

Carlos Guevara - 2020-02-08

@Edu CN lets just say that the theory that predicts and mathemstically do it.. is the same theory that says this is true.

SableAradia - 2020-03-02

@Hurricane Floyd Granted, I didn't see the movie, but a guy named John B below had a plausible explanation. Since eventually all the universe will, theoretically, compress into one singularity, technically all the time in the universe will cross any black hole's event horizon (because they'll all be one black hole.) So with all of time to check out, why not your daughter's room? (Of course I'm sure that's not really how it works, but hey, it's a movie.) :)

Nicholas Rinaldi - 2017-04-07

Matimathical 0:34 nice pun

rongrong sir - 2018-05-03

Nichol

Cirdon91 - 2018-05-21

Noticed it, but only realized it was a pun when I read this.

Colleen - 2019-04-23

I don’t get it

Mutantcy1992 - 2019-04-23

@Colleen "spacetime dyslexia" then he says matemathical because that is a potential dyslexia rendering of "mathematical"

Jay Smith - 2019-01-23

Thank you for this video! Please don't pander to an audience with no prior physics background. There's already plenty of channels which do just that, and like you say, if people didn't keep up with the video, it shouldn't be hard to catch up on the intro stuff from other places. Keep making videos like this, with some meat on the bone.

DNA - 2017-06-03

0:31 "mattemathical" good one

CarthagoMike - 2018-01-14

A video about space and time being sponsored by Crunchyroll...
Alright, let me get my IBM 5100.

lll lll - 2019-06-03

CarthagoMike mad scientist! Sonovabitch

Cobalt Sthenia - 2017-03-30

Last time I came this early, electromagnetism was indistinguishable from weak nuclear interaction.

unsub me - 2018-10-12

@delawarecop quit trying to dismiss peiples argument by starting your paragraphs with "LOL", the only thing funny here is your inability to admit youre extremely biased and incapable of looking at science objectively. From everything ive read, youve decided in your headcannon that einstein is wrong because you lack a fundamental understanding of his work. Argument from ignorance

delawarecop - 2018-10-12

Bhusta Cap - "the only thing funny here is your inability to admit youre extremely biased and incapable of looking at science objectively."
Ditto Hypocrite!

" From everything ive read, youve decided in your headcannon that einstein is wrong because you lack a fundamental understanding of his work."
From what I've read, Einstein was the worlds most infamous plagiarist, and his theories have been disproven repeatedly by many different qualified physicists, but thanks for proving that you are in fact an uneducated twat:)

Argument from Ignorance:)

delawarecop - 2018-10-12

Bhusta Cap - "you arent challenging any world view, youre spouting idiotic ramblings with zero evidence."

Your denial of the evidence does not make it magically disappear. The evidence is there for those who wish to find it, but those who are content with mediocrity will no doubt pretend there is no evidence:)

"Youre honestly a wreck, and it sounds like youre having a hard time grasping reality."
And you are a dishonest wretch, who sounds like you are having a hard time grasping the REALITY of Quantum Entanglement and its implications for Relativity - both SR & GR:)

" I sincerely suggest you just stop attemting to debate science with idiocracy."
And I suggest that you obtain a qualification in physics before you attempt to dissuade YT viewers from acknowledging that Einstein was simply WRONG:)

delawarecop - 2018-10-12

April - NEWS FLASH! There is no scale in Quantum Theory, only ignorance of the truth by those who think that Cosmic scale is somehow different to Quantum Theory. The reality is that Relativity is simply wrong, just like Einstein was wrong about QE. You have merely proven how delusional student can become when they ignore scientific truth and choose to believe to be true, what they already know to be wrong:)

unsub me - 2018-10-12

@delawarecop you are a walking fallacy im not continuing this conversation with someone who refuses to hear anything but themselves. Inb4 you try to twist it though and say some bs about being right. Youre not, and youre not worth my time

Sagitaire - 2019-09-25

And let me guess? Electromagnetism switch roles and then it suddenly becomes magneto-electricity?

Eli - 2017-10-26

"You might wanna hit pause and check out these episodes" *shows three episodes*

Me: immediately hits pause then goes and watches all of them

Paul Billings - 2017-04-07

+1 for the "timey-wimey" reference -- brilliant!

Ncb Engineering - 2017-09-12

"The coordinate previously known as time, T"

My mixtape title

Sourav Dey - 2019-11-09

When I saw crunchy roll...
My soul: this is the rise of Anime..😵😵

allira wadeley - 2020-03-19

So its entirely plausible that beyond the event horizon could be one of the brightest places in the universe and not black at all...

MakeMeToasty - 2018-01-19

“Matemathical”, I’ve watched this like ten times and I just caught the joke.

henriandco - 2017-06-28

My first mindblow in a very long time (or space? :p ). Thank you.

innocent_fugitive - 2017-03-30

I almost never understand more than a quarter of what you're talking about, at least not at first. I kind of let them soak in, watch them a few times and pick up bits and pieces. Gradually they coalesce into recognizable fragments and I can piece them into parts that make sense. Checking other sources is a great idea and I've come back to episodes after seeing other things that help me make sense of things.
I like that your shows are different; you deal with some mind-blowing, counterintuitive, life-changing stuff. Summaries and simplifications have their place but I love that you get into the gritty bits. I appreciate it even more every time I consider how hard it must be to write and illustrate them.
I didn't do much physics in school and none in college so some of the ideas are beyond me. That's something I'm working on remedying, partly because shows like this make me want to see the universe beyond the confines of my puny human senses and understanding. To look it in the math, I guess.
After watching the E-MC2 episode for what must have been the 10th time I finally felt as if I understood what you were describing about the connection between energy and mass. It was a beautiful moment for me, full of wonder and awe and I thank you all from the bottom of my soul for it and the many others like it you've given me with your hard work.

Sunny Nyx - 2017-04-29

+Able Baker WHAT ARE THIS?

Able Baker - 2017-04-30

Christian Vigilante
The words "God Did It" Made to look like a mathematical formula.

Daddy Tachanka - 2017-05-06

dduncombe no words, completely agree

Negativlex - 2017-08-23

Able Baker Sir,no offense,but that makes no sense for the most part...Newton's gravitational constant multipled by zero by the the delta of...what???You can't just write out a delta without anything following specifying what it's the delta OF.I have further problems,for one you seem to write out the Schwarzschild metric's "dt" separately...

Noi Furze - 2018-12-31

innocent_fugitive I do much the same as you

Theo0x89 - 2017-05-30

3:04 The left out terms should have a "+" in front of them.

Kay MEsfits - 2019-07-02

0:33 "matimathical quirks" lmao

Stefan Joyce - 2019-03-01

This reminds me me how a creationist must feel like listening to a scientist. The evidence is there, it just sounds like gobbledygook!

Vadim - 2019-11-11

"matemathical" made it into the final cut

Kristian Cross - 2018-07-19

Brilliant episodes, brilliant information and brilliant background music!!!

CHOIX - 2019-08-22

Does consciousness constitute a time crystal

Whatnoticus - 2017-05-04

"Come with me on a journey through time and space.... In the world of the mighty booosh"
I understand everything now!!

Anthony DeVries - 2017-10-06

I feel so bad for him having to read that crunchyroll ad at the end, lol. Great episode man.

KevinKoolx - 2017-11-01

Your ability to say "Dankulous Memelord" with a straight face is super-human

Russell Catchpole - 2020-01-15

I'd love to buy Matt a coffee & have a chat! I could listen to hime for hours, even if I don't really understand a lot of the science.

KindofaDick - 2019-04-20

I agree with the host Cowboy Bebop is cool AF. The first animé that didn't make me uncomfortable.

Kaleb Martin - 2017-06-22

0:34 ~ Matemathical?

Sl Christopher - 2018-12-20

“Mate’mathical” lol

Zigggggg - 2018-05-04

Finally, a sponsor I'm actually interested in.

Andrew Mapp - 2020-03-22

This said experience would make a great video with regard to the visual affect on falling in and what the visual effects would look like...

Cracked Emerald - 2019-02-20

8:54 so... We see what happened back in time?

Heiko Schlichting - 2017-03-30

What is the overlap of the groups of people who like anime and watch this channel?

Lord American - 2017-03-30

I watch anime a lot and I'm looking to be an astrophysicist in the coming years.

Victor Bolanos - 2017-03-30

Heiko Schlichting I've been for years passionately in love with physics and the mysteries of the universe, but my heart has always followed the mysteries and weirdness of the Japanese animation as well. So I guess it's doable

Mattijn Wagt - 2017-04-01

Both cannot be understood by us normal human beings... xD

Hyroko - 2017-04-02

Heiko Schlichting astrophysicist who watches anime here

The Exoplanets Channel - 2017-04-05

not me

ScrubNation - 2018-05-31

Say you are on an object moving at the speed of light, and you start walking forward on the object, are you moving faster than the speed of light? Or is there some kind of prevention/rule that prevents this.

Vedvart - 2018-04-14

>dyslexia
>matemathical

0:30

This show is so good. It's like every second has something more to find.

Michael Elbert - 2019-07-24

I see now why time slows down and stops when you're approaching and he an event horizon. I think.

Nemesis - 2019-04-25

Nicely explained. I think if our contemporary measure of time, in 'our space', were to be applied to the instant just 'before' the 'big bang', the time would be zero o'clock. Take our contemporaneous time back another year 'before' the 'big bang', it would still be zero o'clock etc. etc.
We're surely living in a universe analogous to a black hole, inside an event horizon.