Mapping the Multiverse
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Published 2020-05-18
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This is a map of the multiverse. Or in physics-ese, it’s the maximally extended Penrose diagram of a Kerr spacetime. And in english: when you solve Einstein’s equations of general relativity for a rotating black hole, the universe does not come to an abrupt halt at the bottom of the gravitational pit. Instead, a path can be traced out again but you do not end up in the universe that you started in. Like I said, it’s a map of the multiverse.
Hosted by Matt O'Dowd
Written by Matt O'Dowd
Graphics by Leonardo Scholzer, Yago Ballarini, & Pedro Osinski
Directed by: Andrew Kornhaber
Camera Operator: Bahaar Gholipour
Executive Producers: Eric Brown & Andrew Kornhaber
End Credits Music by J.R.S. Schattenberg: / @jrsschattenberg
#space #astrophysics #multiverse
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All Comments (21)
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I feel like every time we see a Penrose diagram in Spacetime, it is slightly larger than the previous one.
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I'm disappointed that the ring singularity wasn't called a "ringularity"
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"Multiverse cartography..." This is gonna be one of those hard mode episodes, isn't it?
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Before watching "Yeah, I think I'll understand a little of this..." After watching "I can feel the warp overtaking me... IT IS A GOOD PAIN!"
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6:51 "Our balls, and the geodesics they follow, rebound and travel back out." -Matt O'Dowd, 2020
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"this may sound fun, but there's the inconvinient fact of your utter obliteration" got a real chuckle outta me
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This is an especially great video, even by PBS-ST standards.. I've been waiting for this one since pt 1, and it didn't disappoint. Love the stuff on the inner structure of the Kerr black hole especially, there's next to no information about this online that doesn't require a graduate-level (or higher) understanding of math/physics to even be able to read.
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"Our balls, and the geodesics they follow, rebound and travel back out." Haha, you tease!
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Can I get this Penrose diagram embossed on a towel? I'd like to pack as light as possible for the trip...
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"Repulsive naked singularity"? Way to give the singularity body image issues, Matt.
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I've been staying home, dealing with depression, everything is just kinda 'meh' in my life... And then this. No idea why, but I got so excited while watching this video! I muttered to myself multiple times in an effort to actually understand things, 'rewound' (is that word even used anymore?) probably a half-dozen times to make sure I really took in what was being said... This made me so happy. I'll never truly understand most of these videos, but it's so so fun to watch and think about anyways.
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Well, this was an unexpected place to come across a Mage: The Ascension reference. Thanks, Matt! We actually have a Kickstarter ending in about a week for a deluxe edition of our upcoming "Technocracy Reloaded," so please do check that out if it's the sort of thing that interests you.
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I just found out Matt O’Dowd is almost 50 years old. Which of the time machine options have you used to look 20 forever?
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When travelling the Multiverse, always remember : Don't panic and always carry a towel.
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This is absolutely wildly interesting and elegant, I can conceptually comprehend maybe 19% of the whole concept at this time in this version of this existence in this universe.
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Am I the only one that laughed uncontrollably at "this may all sound fun but unfortunately theres the inconvenient affect of your utter obliteration" @11:10
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My Brain at the start of the video: “Multiverse [Captivating Scientific Gibberish] . In English this is [Captivating Scientific Gibberish with a hint of English]! ”
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: Reads the headline: - yeah... I'll definitely understand this...
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"nerdery".... as of today, definitely one of my favorite words! 🤓🔎
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Thank you to you and your team for producing these videos! They've long moved past my understanding, but I enjoy them all the same! If we had physical access to a black hole what are some experiments that could be done that could advance our understanding of space time?
