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Santa Fe Institute


At last, acknowledging royal women's political power

A recent study analyzing eight premodern states reveals that queen rulers and main wives exercised significant political power, including determining succession, governing policies, and influencing alliances. These women often wielded comparable power to their male counterparts, with agency extending beyond warfare.

SourceSanta Fe Institute·JournalJournal of Archaeological Science·DateApr 16, 2019

New definition returns meaning to information

A new paper proposes a broadly applicable formal definition of semantic information, which emphasizes how information contributes to a system's ability to perpetuate itself. Semantic info is causal necessary for a system to maintain its existence over time.

SourceSanta Fe Institute·JournalJournal of The Royal Society Interface·DateOct 22, 2018

Cooler computing through statistical physics?

A team of researchers from the Santa Fe Institute has published a paper on the thermodynamics of computation, which involves elements of statistical physics, computer science, cellular biology, and neurobiology. The study aims to understand how computers process information and reduce energy waste by optimizing computational processes.

SourceSanta Fe Institute·JournalACM SIGACT News·DateJun 20, 2018

New study improves 'crowd wisdom' estimates

A new study developed a mathematical correction to improve crowd estimates by accounting for individual bias and social information. Researchers found that collective intelligence is highly predictable and can be improved with the right rules for collective estimation.

SourceSanta Fe Institute·JournalJournal of The Royal Society Interface·DateApr 18, 2018

How life generates new forms

A recent study found that gene regulation by protein transcription factors is the most likely mechanism for generating evolutionary change. This discovery challenges previous assumptions and sheds light on the process of evolutionary adaptation.

SourceSanta Fe Institute·JournalProceedings of the National Academy of Sciences·DateApr 11, 2018

Caribou drone study finds 'enormous variation' within herd

A new study using drones to track caribou movement found significant variation in sociality within herds, challenging the classic assumption of uniform behavior among group members. The research also showed that caribou follow isotropic interaction rules, with individuals influenced more by those in front of them than beside them.

SourceSanta Fe Institute·JournalPhilosophical Transactions of the Royal Society of London (B )·DateMar 26, 2018

How do your friends plan to vote?

Researchers found that social-circle questions led to more accurate predictions for election outcomes than traditional polling methods. Social-circle questions provide information about people who aren't explicitly included in the sample and can help anticipate the processes of social influence.

SourceSanta Fe Institute·JournalNature Human Behaviour·DateFeb 26, 2018

When it comes to extinction, body size matters

Scientists propose a nuanced model for extinction that incorporates body size and metabolic scaling, revealing why animal species tend to evolve toward larger body sizes. The model predicts an energetically ideal mammal size 2.5 times that of an African elephant, making it more stable against extinction by starvation.

SourceSanta Fe Institute·JournalNature Communications·DateFeb 13, 2018

How living systems compute solutions to problems

Research at the Santa Fe Institute shows that living systems use collective computation to make decisions, with individuals contributing their own opinions and preferences. The system can produce accurate distributions of power, even in complex environments like primate social groups.

SourceSanta Fe Institute·JournalScience Advances·DateJan 17, 2018

Paradoxes in microbial economies

Researchers identify three paradoxical dynamics: the curse of increased efficiency, where less efficient microbes thrive; and the curse of decreased inefficiency, leading to slower population growth. The study highlights complexities in engineered microbial communities and microbiomes, challenging assumptions about optimal strategies.

SourceSanta Fe Institute·JournalNature Communications·DateNov 8, 2017

Morbidity and mortality of leprosy in the Middle Ages

A new study analyzing medieval skeletons found that contracting leprosy increased a person's chances of dying, but social status and sex also played roles. The researchers created a model to explore morbidity and mortality through a unique data set, shedding light on the complexities of the disease in the past.

SourceSanta Fe Institute·JournalAmerican Journal of Physical Anthropology·DateOct 3, 2017

Monk parakeets invade Mexico

A recent study reveals that nearly half a million monk parakeets were imported into Mexico over five years, leading to rapid expansion across the country. The species was declared an invasive species in 2016, highlighting the need for management steps.

SourceSanta Fe Institute·JournalPLOS ONE·DateSep 19, 2017

How monkey fights grow

Conflict durations in monkey societies grow more quickly as others join, according to researchers studying dynamic conflict patterns. The first interaction sets the tone for the fight, with brief episodes likely to follow if initial interactions are brief.

SourceSanta Fe Institute·JournalJournal of The Royal Society Interface·DateSep 6, 2017

Can a Zika outbreak be sustained sexually?

Researchers found that populations of males who have sex with males can form an outbreak-sustaining core, while heterosexual populations experience smaller outbreaks. This raises concerns about silent, sustained outbreaks in the community, particularly among men who are least likely to get tested for Zika.

SourceSanta Fe Institute·JournalProceedings of the National Academy of Sciences·DateAug 7, 2017

Fractal planting patterns yield optimal harvests, without central control

Balinese rice farmers' planting patterns create fractal designs that yield optimal harvests without global planning. The pattern's emergence is driven by water availability and pest damage, making the system more resilient. Farmers adapt locally, taking individual decisions that optimize their own harvests, resulting in a stable system.

SourceSanta Fe Institute·JournalProceedings of the National Academy of Sciences·DateJun 9, 2017

Aging gracefully in the rainforest

The Tsimane Health and Life History Project found that many individuals reach a social and economic peak between the ages of 40 and 60. They adapt by devoting less time to hunting and more to horticulture, producing the majority of calories for their extended families.

SourceSanta Fe Institute·JournalEvolutionary Anthropology Issues News and Reviews·DateMay 9, 2017

Cities provide paths from poverty to sustainability

A new study from the Santa Fe Institute proposes a quantitative index to measure sustainable development in cities, revealing systematic correlations between urbanization and poverty reduction. The research also highlights persistent inequalities in access to housing and services across neighborhoods.

SourceSanta Fe Institute·JournalProceedings of the National Academy of Sciences·DateMay 1, 2017

Monkey fights help explain tipping points in animal societies

Researchers analyzed conflicts within a captive community of macaque monkeys to understand how agitated individuals can trigger large-scale brawls. They found that a small number of agitated monkeys can destabilize the system, but individual differences among group members may allow for more controlled distance from criticality.

SourceSanta Fe Institute·JournalNature Communications·DateFeb 10, 2017

A friend of a friend is ... a dense network

A new theoretical model shows that dense networks evolve differently depending on the rate of second-neighbor connections. Networks with high copying probabilities exhibit densifying behavior, growing faster than themselves, and an unlimited number of growth transitions related to copying are discovered.

SourceSanta Fe Institute·JournalPhysical Review Letters·DateDec 1, 2016