The simulation hypothesis — the idea that our universe might be an artificial construct running on some advanced alien ...

For most of human history, large societies have drawn clear lines between people who belong to the in-group and those who do ...

An Introduction to Ergodicity Economics is a new textbook that draws on physics to re-examine traditional economic theory. It ...

In October, the International Society for Artificial Life recognized several SFI researchers and co-authors with the ISAL ...

Three SFI External Professors and their collaborators received a 2025 SAF Research Award from the Shanghai Archaeology Forum ...

When scientists test algorithms that sort or classify data they often turn to a trusted tool called Normalized Mutual ...

How much risk is any individual willing to take on? That depends, in part, on their individual resources and environment, ...

Understanding the key drivers of brain aging is essential for effective prevention and treatment of neurodegenerative diseases. Here, we integrate human brain and physiological data to investigate ...

Popular and academic books and chapters, authored or edited by SFI researchers. Thinking Through Archaeological Complexity explores how archaeologists can engage with complex adaptive systems, ...

We are building a theoretical framework that will guide the creation of artificial agents that adjust their neural networks (brains) to feedback from their bodies and surroundings -- in essence to ...

Is there an ideal city form? As cities proliferate worldwide this has become a central question underpinning sustainable development and economic opportunity for billions of people. We provide ...

The Santa Fe Institute’s Complex Systems Summer School (CSSS) offers an intensive introduction to complex behavior in mathematical, physical, living, and social systems. Spanning four weeks, CSSS ...