November 2, 2007 lecture by Cathy Marshall for the Stanford University Human-Computer Interaction Seminar. Most of us engage in magical thinking when it comes to the long term fate of our digital stuff. At this point, a strategy that hinges on benign neglect and lots of copies seems to be the best we can hope for. Cathy discusses four central themes of personal digital archiving and some additional challenges introduced by home computing environments. She also talks about how these themes relate to emerging institutional archiving technologies, best practices, and information policies.