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Explorations in Science and AI


How string theory lost its strings
String theory was once hailed as the “theory of everything” — a unified model of nature built on tiny vibrating strings. But after decades of expansion, the field has evolved beyond its namesake, embracing branes, dualities, and abstract geometry. Some physicists now wonder: is it time to rename the theory entirely?


How string theory lost its strings
String theory was once hailed as the “theory of everything” — a unified model of nature built on tiny vibrating strings. But after decades of expansion, the field has evolved beyond its namesake, embracing branes, dualities, and abstract geometry. Some physicists now wonder: is it time to rename the theory entirely?
Colin Hunter
Jul 3, 2025


Ethan Siegel
Apr 15, 2025


FirstPrinciples
Apr 1, 2025


Matt von Hippel
Mar 27, 2025


Colin Hunter
Feb 20, 2025


How string theory lost its strings
String theory was once hailed as the “theory of everything” — a unified model of nature built on tiny vibrating strings. But after decades of expansion, the field has evolved beyond its namesake, embracing branes, dualities, and abstract geometry. Some physicists now wonder: is it time to rename the theory entirely?
Colin Hunter


Matt von Hippel
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In conversation: Matt Leifer on quantum foundations
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Paul Steinhardt seeks cosmic and crystalline “impossibilities”
From exotic materials to early-universe cosmology, the Princeton physicist thrives when challenging conventional thinking.

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Jonathan Oppenheim: Quantum heretic or freethinker?
Prevailing wisdom suggests spacetime must be quantized to achieve physicists’ long-sought unified theory. Jonathan Oppenheim isn’t so sure.

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In conversation: Jesse Thaler on AI and physics
A machine learning convert discusses the synergies between AI and physics, and the institute devoted to that fruitful intersection.

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Stargazing as a child in India, I glimpsed my quantum future
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7 questions with Katie “AstroKatie" Mack
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The arXivist: Paul Ginsparg on the founding and future of the world’s physics repository
With over 2.5 million submissions over its 33 years, arXiv is the world's largest ongoing experiment in open science.

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Andrew Strominger loves string theory but is “ready to be in the real world”
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Claudia de Rham strives to define – and defy – gravity
Whether puzzling at a blackboard, scuba diving, or piloting a plane, physicist Claudia de Rham feels powerfully pulled to gravity.

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5 questions with astrophysicist Roan Haggar
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7 questions with physicist (and aspiring flautist) Eduardo Martin-Martinez
Insatiably curious with "antsy pants" about finding answers to deep questions, this physicist is happiest when faced with new challenges.

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5 questions with Chris Ferrie
A quantum scientist and author of books for babies on the same subject, Chris Ferrie makes big ideas feel like child's play.

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5 questions with cosmologist Luna Zagorac
From dark matter to hieroglyphs, this particle cosmologist tackles puzzles in “radically interdisciplinary ways.”

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5 Questions with Ethan Siegel of “Starts With a Bang”
An astrophysicist and science communicator talks about life, the universe, and "the most amazing fact of all."

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