Prof. Dr. Pier Luigi Gentili


This is me in mountain (August 2018)


The focus of my research and teaching is Complexity.

The XXI Century Challenges that humanity is facing can be defined as Complexity Challenges: they regard Natural, Computational, Descriptive, and Bio-ethical Complexity.

​Natural Complexity regards the study of Complex Systems. Complex Systems are natural systems that science is unable to describe exhaustively. Examples of Complex Systems are both unicellular and multicellular living beings; human brains and immune systems; ecosystems; human societies; global economy; climate and geology of our planet. Science cannot predict the behavior of such systems, especially in the long term.

​Computational Complexity regards those computational problems that can and cannot be solved accurately and in a reasonable lapse of time with current electronic supercomputers and software.

Descriptive Complexity is related to the recognition of variable patterns.

Bio-ethical Complexity regards all those delicate choices that societies have to make as far as the birth, suffering, and death of living beings are concerned. 

These four types of Complexity are strictly interwoven. If You want to know more about the link between Natural, Computational, and Descriptive Complexities, please read my book titled "Untangling Complex Systems: A Grand Challenge for Science" and my papers.

In particular, I suggest you to read my paper titled

"Why is Complexity Science valuable fo reaching the goals of the UN 2030 Agenda?"

You can download it by clicking right here:

The Complexity Science can contribute to reach the goals of the 2030 Agenda adopted by the UN

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Our European project "Cosy thinking" wants to contribute to the fulfillment of the 2030 Agenda

«Enhancing higher education on COmplex Systems THINKING for sustainable development»

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Geographical Distribution of the European Project Partners


Members of the UniPG Team


Pier Luigi Gentili
Department of Chemistry, Biology, and Biotechnology
University of Perugia
Via Elce di Sotto 8
06123 Perugia
Twitter: @Pier_Complexity
Tel.: +39 0755855573

The University of Perugia (Italy)

Department of Chemistry, Biology, and Biotechnology