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Tiny Quantum Computer Simulates Complex Molecules

With the demonstration, an IBM team brings us one step closer to the quantum chemistry revolution

4 min read
An image of the seven-quibit quantum computer that IBM researchers used to simulate complex chemical molecules.
Image: Abhinav Kandala/Nature

Someday, engineers will build large quantum computers that can solve currently impossible science problems, crack unbreakable encryption, and make artificial intelligence smarter. In the meantime, companies building quantum computers are trying to figure out how to use the small ones they expect to build in the coming years.

Decades of theoretical work suggest that quantum computers—perhaps even relatively small ones—will someday be able to solve important problems in chemistry that are intractable on existing computers. But before they can take on big challenges like understanding photosynthesis and improving catalysts for making renewable fuels, researchers have begun simulating small molecules and atoms. And so far, they haven’t gone far beyond what a math-savvy chemist can do with a pen and paper.

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The Spectacular Collapse of CryptoKitties, the First Big Blockchain Game

A cautionary tale of NFTs, Ethereum, and cryptocurrency security

8 min read
Vertical
Mountains and cresting waves made of cartoon cats and large green coins.
Frank Stockton
Pink

On 4 September 2018, someone known only as Rabono bought an angry cartoon cat named Dragon for 600 ether—an amount of Ethereum cryptocurrency worth about US $170,000 at the time, or $745,000 at the cryptocurrency’s value in July 2022.

It was by far the highest transaction yet for a nonfungible token (NFT), the then-new concept of a unique digital asset. And it was a headline-grabbing opportunity for CryptoKitties, the world’s first blockchain gaming hit. But the sky-high transaction obscured a more difficult truth: CryptoKitties was dying, and it had been for some time.

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