John Casti

John L. Casti is a Senior Research Scholar at the International Institute for Applied Systems Analysis in Laxenburg, Austria, where he works on the development of early-warning methods for extreme events in human society. He is also the co-founder of The Kenos Circle, a Vienna-based society for exploration of the future, and author of the previous bestselling volumes, Paradigms Lost, Would-Be Worlds and The Cambridge Quintet. He lives in Vienna.