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There’s a big problem with gravity…
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Gravity is a lie. I went into zero gravity to explain why…

But it won't be easy because gravity is actually one of the most controversial subjects in all of physics.

This is not some philosophical debate. A huge amount of the tech you use every day depends on our current (limited) understanding of gravity.

If we can understand gravity a little bit better, we can build more things that are huge if true!

So in this video, I joined the European Space Agency on a real zero gravity flight and interviewed theoretical physicists to understand: What really IS gravity? And what are the real life sci-fi ways we might use it in the future?

Chapters:
0:00 The big problem with gravity
0:58 What is a zero gravity flight?
1:40 What is gravity?
2:49 What’s Einstein’s equivalence principle?
3:40 What does zero gravity feel like?
5:52 Why is falling the same as floating?
6:58 How did gravity disappear?
9:28 Why is gravity not a force?
11:35 What is spacetime?
13:16 Why does this matter?
14:58 Why is gravity fake?
15:48 What are the four fundamental forces?
16:50 Quantum mechanics v gravity
17:55 The theory of everything!
18:51 AdS/CFT
20:10 What if we could change gravity?
21:50 Something you might love

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Bio:
Cleo Abram is an Emmy-nominated independent video journalist. On her show, Huge If True, Cleo explores complex technology topics with rigor and optimism, helping her audience understand the world around them and see positive futures they can help build. Before going independent, Cleo was a video producer for Vox. She wrote and directed the Coding and Diamonds episodes of Vox’s Netflix show, Explained. She produced videos for Vox’s popular YouTube channel, was the host and senior producer of Vox’s first ever daily show, Answered, and was co-host and producer of Vox’s YouTube Originals show, Glad You Asked.

Additional reading and watching:
- Professor Janna Levin’s Dispatches from the Universe:
- Where Did the Universe Come From? And other books from Professor Geraint Lewis:
- The Large N Limit of Superconformal Field Theories and Supergravity, Professor Juan Maldacena:
- The AdS/CFT Correspondence, Veronika Hubeny:
- What Everyone Gets Wrong About Gravity, Veritasium:
- Astrophysicist Explains Gravity in 5 Levels of Difficulty, Wired with Professor Janna Levin:
- A new way to visualize General Relativity, ScienceClic English:
- What Bothers Physicists About Black Holes, my interview with Brian Cox:
- Space-Time: The biggest problem in physics, Quanta:


Vox:
IMDb:

Gear I use:
Camera: Sony A7SIII
Lens: Sony 16–35 mm F2.8 GM
Audio: Sennheiser SK AVX and Zoom H4N Pro

Music: Musicbed, Tom Fox

Follow along for more episodes of Huge If True:

—
Welcome to the joke down low:

Why did Einstein develop a theory about space?
Well, it was about time!

Find a way to use “time” in a comment to let me know you’re a real one who made it to the end of the description :)

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