a brief description of anti-fragility, http://www.edge.org/q2011/q11_3.html ^ Riccardo Pozzo (2004) The impact of Aristotelianism on modern philosophy . CUA Press. p.41. ISBN 0-8132-1347-9 ^ The ancient Egyptians observed that heliacal rising of a certain star, Sothis (Greek for Sopdet (Egyptian), known to the West as Sirius ), marked the annual flooding of