I get emails from several Oxfords, but this week’s best came from the nearest and contained a link to “a lecture you’ll find worth looking at — coffee/keyboard interface warning.” The warning was heeded and needed. The lecture, by Dmitry Orlov, given to the Long Now Foundation in San Francisco on Feb 13 as a part of Long Now’s Seminars About Long Term Thinking, is titled Social Collapse Best Practices [Long Now report here, full text at ClubOrlov]. According to Orlov, who had direct experience of social collapse in Russia after the demise of the communist system (his thesis is that the US is moving rapidly towards closing its “collapse gap” with Russia), four things are important during a collapse — food, shelter, transportation and security. But especially security: