SFI Resident Professor Melanie Mitchell has received a 2025 Eric and Wendy Schmidt Award for Excellence in Science ...

Artificial-intelligence systems have made remarkable progress in recent years, but they still struggle with the kind of ...

Complexity Postdoctoral Fellow Maike Morrison builds mathematical tools to quantify and compare biological variation. Her ...

Why do people make short-term decisions that may not be in their long-term interest? An October 22-25 working group takes ...

In the 1980s and ’90s, SFI played laboratory to a promising new method known as agent-based modeling. In ensuing decades, agent-based models (ABMs) proliferated across many fields, including economics ...

Global markets are complex systems, shaped by feedback loops, sudden shocks, and adaptive behavior that rarely follow textbook rules and that can’t be captured by neat equations. At its core, ...

SFI's Postdocs in Complexity Global Conference brings together interdisciplinary early-career researchers from around the world. This year’s conference, held September 15–18, drew 53 accomplished ...

Clinical data (on patients from elephant seals to people) make clear the extraordinary and contradictory powers of the mammalian immune system: a vital line of defense, yet a source of grave danger.

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We develop a system of recursive functions on the reals analogous to classical recursion theory on the natural numbers. This system turns out to include many sets and functions that are uncomputable ...