A View from Emerging Technology from the arXiv Photons 'n' Futons The best of the rest from the Physics arXiv this week: December 18, 2010 Ernst Mayr And Carl Sagan Debate About The Probability Of Intelligent Life In The Universe A Micromechanical Model Of Collapsing Quicksand On the Electrical and Magnetic Properties of some Indian Spices Computational Challenges Of Tumor Spheroid Modeling Are Biological Systems Poised At Criticality? Want to go ad free? No ad blockers needed. Become an Insider Already an Insider? Log in.