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# Abstractions blog

## Latest Articles

### 19 Women Leading Math and Physics

Top women in mathematics and physics discuss how they got to where they are — and why there aren’t more of them.

### The Almost-Proof of Fermat’s Last Theorem

19th-century mathematicians thought the “roots of unity” were the key to solving Fermat’s Last Theorem. Then they discovered a fatal flaw.

### How Circadian Clocks Differ From Sleep

The circadian clock is in nearly every cell, and researchers have untangled many of its secrets. But sleep has been harder to pin down.

### The Hidden Twist to Making a Möbius Strip

The simple Möbius strip illustrates a deep mathematical challenge that has long tormented the field of symplectic geometry.

### How Viruses May Have Led to Complex Life

Without viruses, we might never have evolved.

### Droplets That ‘Come to Life’

Life might have originated in droplets that behave surprisingly like living cells.

### Graph Isomorphism Vanquished — Again

Just five days after posting a retraction, László Babai announced that he had fixed the error in his landmark graph isomorphism algorithm.

### How Curvature Makes a Shape a Shape

The ancient study of an object’s curvature is guiding mathematicians toward a new understanding of simple equations.

### Complexity Theory Problem Strikes Back

The legendary graph isomorphism problem may be harder than a 2015 result seemed to suggest.