Bostrom, N. (2008), Parenthetical Word in Alexei Turchins Structure of the Global Catastrophe: Risks of Human Extinction in the XXI Century, A Series: Dialogues about the Future, Vol 2 (series editors I. V. Sledzevsky and V. Prajd), (online book) pp. 22 Posted on 16 December 201516 December 2015 Posted in Uncategorised. Share on Facebook | Share on Twitter