Ideas

Explore firsthand accounts of research and questions posed by IAS scientists and scholars. From art history to string theory, from moral anthropology to the long-term fate of the universe, contributions span the last decade to the research of today.

I gave a copy of the preprint of my paper to Robert Oppenheimer, who, as Director of the Institute for Advanced Study, was my host. A week later I met him at an Eastern Physics Meeting at the University of Maryland, my home institution. When I asked him if he had read my paper, he replied, “Greenberg, it’s beautiful!” I was elated. After a pause, he completed his assessment of my paper by saying, “But I don’t believe a word of it!”

The theoretical astrophysicist and Princeton University professor is well known for his work on NASA’s 2001 Microwave Anisotropy Probe—he conceptualized the mission and deciphered the radio telescope’s data to measure the age of the universe, the...

In his 1951 poem “Harlem,” Langston Hughes, writer and social activist, famously questioned the outcome of a “dream deferred.” Does such a dream dry up, fester, stink, crust and sugar over, or sag like a heavy load, he pondered. Then, foreshadowing the hundreds of race riots that would take place in the 1960s and 1970s, he ends his poem with an emphatic query: Or does it explode?

 

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What is real about this ethnography—what hasn’t been altered or rendered anonymous—are the events that I describe and the voices of my collaborators. Their voices bring to life the activities that take place on Chicago’s street corners. Their voices bring dimension to people’s identities and life struggles. Their voices paint a portrait of the variegated desires that stem from imagining life anew.

 

Johannes Krause, Professor of Archaeology and Paleogenetics at the University of Tübingen and Director of the Max Planck Institute for the Science of Human History in Jena, will discuss ancient human genomes and how they suggest three ancestral...

What do quantum interference, flocking of birds, Facebook communities, and stock prices have in common?

Many natural and social phenomena may be viewed as inherently computational; they evolve patterns of information that can be described...

Taking Theory to Traffic

The largest live autonomous vehicle traffic experiment ever conducted began the week of November 18, 2022, in Nashville, Tennessee. While this experiment used 4 miles of highway, 288 cameras, and an impressive command center, one of its most vital resources was equations on a blackboard. In front of one of these blackboards was Benedetto Piccoli, Visitor in the School of Mathematics.

The Curriculum of the Woods

Predicting thousands of years of forest growth with just an afternoon of fieldwork and a simple calculator might seem like an impossible task, but Jonathan Levine, Chair of Princeton’s Department of Ecology & Evolutionary Biology, who runs annual classes in “Forest Succession” in the Institute Woods, enables his students to achieve precisely this.