Help us caption and translate this video on Amara.org: www.amara.org/en/v/mQo/ (February 27, 2012) Leonard Susskind spends some time in the beginning of the lecture discussing some of the basic qualities of systems to lay a foundation for the rest of the lecture and the class. Stanford University: www.stanford.edu/ Stanford Continuing Studies: continuingstudies.stanford.edu/ Stanford University Channel on YouTube: www.youtube.com/stanford