In search of the optimal toolkit

In a new paper in Science Advances, SFI External Professor Marcus Hamilton and colleagues present a new model showing the trade-offs between the cost and utility of new tools in small-scale societies.

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Lou Schuyler Seed Grant funds exploratory postdoc projects

SFI's Lou Schuyler Seed Grant Fund supports SFI’s early-career fellows' new, exploratory research directions. Since 2022, ten SFI postdocs have held these grants. Here, we celebrate the work of a few current and recent grant holders, who are putting these funds to uses as varied as they are inventive.

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SFI welcomes Visiting Postdoctoral Fellow Jacob Calvert

The human brain is remarkably good at detecting patterns in the world around us. We notice behaviors, rhythms, and recurrences, and often build analogies to explain them. But not all of these intuitive ideas about nature hold up under mathematical scrutiny. Visiting Complexity Postdoctoral Fellow Jacob Calvert is interested in which of those ideas can be made precise.

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Mapping infrastructure deficits across sub-Saharan Africa

In a paper in Nature, SFI External Professor Luís Bettencourt and co-author Nicholas Marchio, both researchers at the University of Chicago, use the first complete dataset of more than 415 million buildings across 50 countries in sub‐Saharan Africa to create an unprecedented approach to urban development, down to each street block.

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Finding geometry in the humanities

The New New Science, a September 15-18 working group, meets to address what it means to view the humanities as subjects described by — and understood through — mathematical and computational concepts.

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Computer copy: working group explores digital-twin technology

On August 12-13 a working group at SFI explored the challenges and opportunities of digital-twin technology — virtual representations of physical objects, designed to exactly mimic its inspiration — not as simple models, but as complex systems that use real-time data to change in all the same ways as its real-world counterpart.

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Can courts safeguard fairness in an AI age?

The use of AI in several aspects of the criminal justice system raises pressing questions about how AI and other technologies use data to make predictions and recommendations, and larger questions about how to safeguard fairness. Two SFI researchers were among the authors of a report for the National Institutes of Justice and a recent opinion in the Communications of the ACM to help inform future guidelines on safe and effective ways to use AI in the criminal justice system.

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SFI welcomes new 2025 External Professors

External Faculty are central to SFI's identity as a world-class research institute. They enrich our networks of interactions, help us push the boundaries of complex-systems science, and connect us to more than 70 institutions around the globe. This year, ten new researchers joined SFI's External Faculty.

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Visions of power in Mesoamerica

On August 19–20, the Santa Fe Institute hosted Collaborative Visions of Power in Mesoamerica: Teotihuacan and the Lowland Maya, a working group that brought together archaeologists, anthropologists, art historians, and astronomers. Participants explored how two great cultural centers of Mesoamerica — Teotihuacan in central Mexico, and the lowland Maya, spanning parts of southern Mexico, Belize, Guatemala, and Honduras — influenced one another across centuries, and how those interactions reshaped ideas of power, time, and even architecture.

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Join SFI as a Complexity Postdoctoral Fellow

Applications are open for the 2026 cohort of SFI Complexity Postdoctoral Fellows, who hold the Omidyar Fellowship. This program supports recent Ph.D. recipients for up to three years while giving them broad freedom to explore their interests.

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Assembling the hidden rules of proteins

An SFI working group looking for hidden rules that underpin proteins brings molecular biologists, bioinformaticians, statisticians, machine-learning experts, and more to SFI from August 18–21 to explore how proteins emerged, how they could evolve in the future, and how we might build new ones for medical treatment and beyond.

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SFI Board of Trustees names new Chair and Vice-Chair

This spring, the Santa Fe Institute’s Board of Trustees elected Ian McKinnon and Sam Peters as Board Chair and Vice-Chair, respectively. McKinnon and Peters, who both grew up in New Mexico, have multi-decadal relationships with SFI. Their three-year appointments began on April 29, 2025, following the Board’s bi-annual meeting.

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