# Videos

## Discoveries Playlist

### Can a New Law of Physics Explain a Black Hole Paradox?

Leonard Susskind and collaborators set out to understand why black hole interiors grow forever. They ended up proposing a new law of physics.

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### Can a New Law of Physics Explain a Black Hole Paradox?

### How a Computer Broke a 50-Year Math Record

### Wormhole in the Lab

### The High Schooler Who Solved a Prime Number Theorem

### How Two Physicists Unlocked the Secrets of Two Dimensions

### Inside the Big Reveal of the Milky Way’s Supermassive Black Hole

### The Mechanical Secret of a Brainless Animal

## Explore All Videos

### How to Build a Telescope to See the Early Universe

Cynthia Chiang describes the experiments she hopes will illuminate the early universe.

### When Computers Write Proofs, What’s the Point of Mathematicians?

Andrew Granville muses on how artificial intelligence could profoundly change math.

### Math’s Famous Map Problem: The Four-Color Theorem

David Richeson discusses the history and significance of the four color theorem.

### The Cryptographer Working to Protect Computations

Kalai discusses the meaning of cryptography and how essential it is to our daily lives.

### A Bet Against Quantum Gravity

Oppenheim describes why he thinks gravity can’t be squeezed into the same quantum box as the other fundamental forces — and what he’s proposing as an alternative.

### Can a New Law of Physics Explain a Black Hole Paradox?

Leonard Susskind and collaborators set out to understand why black hole interiors grow forever. They ended up proposing a new law of physics.

### The Digital Quest for Quantum Gravity

Renate Loll describes her theory of causal dynamical triangulations and how it might unlock certain aspects of quantum gravity.

### How a Computer Broke a 50-Year Math Record

DeepMind researchers trained an AI system called AlphaTensor to find new, faster algorithms for matrix multiplication. AlphaTensor quickly rediscovered — and surpassed, for some cases — the reigning algorithm discovered by German mathematician Volker Strassen in 1969.

### She Tracks Wildlife eDNA on Everest and in the Andes

Tracie Seimon of the WCS’s Molecular Diagnostics Laboratory describes her biodiversity research, which is based on eDNA — DNA collected from the environment.