Navigating Complexity in Big History Exploring Periodization Across Cosmic and Biosocial Dimensions

David J. Lepoire has a Ph.D. in computer science from DePaul University in Chicago, USA, and a B.S. in physics from California Institute of Technology, USA. He has worked in environmental and energy areas for many governmental agencies over the past 25 years.

Leonid E. Grinin is Russian Sociologist, Political Anthropologist, Economist, and Scholar of historical trends and future studies. He is Senior Research Professor at the Institute for Oriental Studies of the Russian Academy of Sciences in Moscow and Leading Research Fellow of the Laboratory for Destabilization Risk Monitoring of the National Research University Higher School of Economics. He is Director of the Eurasian Center for Big History & System Forecasting of the Russian Academy of Sciences and Research Professor and Director of the Volgograd Center for Social Research. He is Vice-President of the International Kondratieff Fund and Member of the International Big History Association.

Andrey V. Korotayev is Director of the Center for Stability and Risks Analysis at the HSE University in Moscow, Russia. He is also Senior Research Professor at the Institute of Oriental Studies and Institute for African Studies, Russian Academy of Sciences, as well as at the Faculty of Global Studies of the Lomonosov Moscow State University and the Russian Presidential Academy of National Economy and Public Administration.