COMPUTING SCIENCE
The World in a Spin
Brian Hayes
Acknowledgment
This article was inspired and informed by a visit to the Scuola Internazionale Superiore di Studi Avanzati and the Abdus Salam International Centre for Theoretical Physics, both in Trieste. I am grateful for the advice and criticism of Riccardo Zecchina, Federico Ricci-Tersenghi, Matteo Marsili, Anna Delin and Johannes Berg, and for the hospitality of both institutions.