Where Are All The Hidden Dimensions?

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Written by Joseph Conlon
Professor of Theoretical Physics, University of Oxford

Edited and Narrated by David Kelly
Thumbnail Art by Ettore Mazza
Huge thanks to Oliver Knill for the use of his Calabi-Yau imagery, and Jeff Bryant for his.

Footage from Videoblocks, Artgrid. Footage of galaxies from NASA Goddard.

Image Credits:

00:00 Introduction
04:15 The Fifth Dimension
10:03 A Theory of Strings
16:30 Visualizing The Invisible (Calabi-yau Manifolds)
22:31 Where Are The Hidden Dimensions?
33:01 Hunting For Evidence At The Beginning Of Time

#stringtheory

[deusexaethera]

Here's a better way to visualize extra dimensions. Think of a book. You can read left-or-right on a line of text; there's one dimension. You can skip up-or-down between lines; there's a second dimension. You can flip forward-or-backward to different pages; there's a third dimension. Those are the 3 dimensions you're familiar with. But you can also pick up a different book; that's not just a continuation of the text in the first book, it's a completely different narrative. Now you're navigating in 4 dimensions. You can go to a different section of the library, switching between fiction, nonfiction, photography, etc. Now you're navigating in 5 dimensions. You can go to a different library that has books in a different language; now you're navigating in 6 dimensions. Etc.

[MyBeautifulDarkTwistedFantasy]

I realize that there is only so much “history of the universe” that can be covered, but please don’t ever stop making these videos! This and history of the earth are two of the absolute best channels on YouTube!

[kylaballard]

As a creative writer interested in poetry and creative non-fiction, the writing in these videos makes me drool. It is imaginative, innovative, and incredibly informative, making intriguing connections between vastly different scientific, historical, and science fiction topics. The writing accomplishes this while also managing to build an immersive story line that allows the viewer to relate, all while presenting complex scientific facts in an easily accessible and understandable fashion. These are my comfort videos, for times when I want to get lost in expansive language that teaches me more about my place in the universe as I fall asleep or go about daily tasks. Thank you for the amazing content!

[flosgodhdtv]

I have multiple sclerosis I use videos like this to distract myself from the physical pain and suffering
Sorry if this sounds dramatic but I'm grateful for your work

[joshuamorganadams]

Currently going through a separation. I won't go into details because they are irrelevant. My wife is the only person I enjoyed discussing things like this with; I see the universe(s) in her eyes, and she always brought up stuff my daft self would miss. I miss her. I miss those talks. I miss being shown I don't know everything.

I know a comment like this is annoying to a lot of you - probably would be to me as well - but I'm still going to say it. Have someone you love... don't just say it to them, show them. Love you, M.

[anteradic]

For an armchair salon physicist such as myself, high quality videos like this one are an absolute treasure.Thank you very much!

[BloobleBonker]

I have never come across such a clear and graphically satisfactory summary of this difficult subject.

[MintyLime]

I would've given my left nut to have had such a wealth of good documentaries like this when I was a kid in the mid 2000s. Animal Planet, Natgeo, History Channel, etc only had so much and we all know what they turned into. The move from TV studios to individuals and small groups of independent creators was inevitable. A textbook lesson in market competition. It's just unfortunate that all these creators are stuck under a corporation like Google.

[blackheartkoda]

as someone whose smoke a lot of DMT i can tell you that DMT gives you a glimpse into some of these other dimensions!!

[Quark.Lepton]

It is very difficult to conceive of, mentally, so the best way I’m able to envision the extra dimensions in our reality is to acknowledge the fact that they really aren’t _anywhere_ because they are _everywhere._ We are constantly moving in, out, through, above and below them in every instance of our existence, and quite likely in every instance _afterwards._

[mttlsa]

the fact that someone around 2000 years ago came out with such outstanding ideas is mind blowing...

[haynesatteh]

Great video,  have always known there’s more to life than meets the eye, I feel like in this life i am supposed to be doing more than i am doing for the people i love. been seeking for an eye opening enlightenment, a way to be more influential, powerful and protected~

[xXxWhiskeytangoxXx]

I love physics and history. This dude's narration, intellect and vocabulary are impeccable. Thanks for sharing your experience. Much love, teacher!

[tag]

Excellent - even though I can't say I understand, what was said here well enough to describe it to someone else, I am a lot closer to a weak grasp of string theory than ever before. Thanks. I will be revisiting this episode several times I'm sure. Well done folks.

Also, the nearration by David Kelly is among the best of all voices on the internet. Clear, with proper inflection and dynamics along with living in the right frequencies. In other words, easy on the ears.

[garnetlamarche]

The first thing that occured to me, was that we keep trying to look smaller when searching for extra dimensions. I am curious as to wether it has been considered for there to be larger dimensions that we are too small to observe.

[weirdbeardzz]

The most comprehensive, insightful, thorough, intricate, beautiful display of how we decipher the abstract. Astonishing display, everyone needs to see.

[Crescent_Audio]

I went to jail for 8 months back in 2017, and I had been getting very interested in physics before that, but during my stay I got a copy of Brian Greene’s “The Elegant Universe” and that book’s main topic is string theory and the story and mystery of extra dimensions. I read it cover to cover many times during those 8 months, and I’m thoroughly convinced that string theory, or something that looks like it, is descriptive of reality on the smallest of scales.

We are most likely embedded in a sea of calabi-yau manifolds that we traverse while we move through our 3, and though we will never experience them directly, it would be entirely possible that nature has many more dimensions that we can experience and we would never know about them.

The insect walking in the phone line metaphor is used in the book as well, and it’s a nice visual metaphor.

The main point Greene makes in the book the the notion that a string’s extended nature allows gravity to make sense rather than the impossible notion of true “point-like” particle.

[davidswift]

These videos along with 'The History of the Earth' collection are quite simply the best of anything you can watch on any platform. The poetry with which these are narrated makes my spine tingle!

[sam_serif]

i’ve been devouring physics explainers for the last few years, trying to extend my knowledge of sound physics into the realm of light.. not to mention readings on abstract geometry and the “holographic” appearance of different phenomena in the universe.. anyway i gotta say, THIS video really blows the roof off! it really feels like it’s all coming together in an intuitive way, and i’m glad i can continue to learn about these topics in my post-college life. thank you!

[sephjfox]

Visualizing multiple dimensions is like imagining a surgeon who can put on a VR headset and then flip through the layers of reality like a catalog to perform surgery on a person by virtually reaching into something that looks like a tree and pulling out an unwanted branch except that the tree is the person and they can't feel anything and never have to be drugged or sliced open, they can just go home healed and feeling completely normal