A dedication to Randy Pausch by the "Building Virtual Worlds" at CMU, Fall 2005. (Posted to the Web by Andy Jih and Gabriel Robins.) Randy Pausch (www.randypausch.com) is a virtual reality pioneer, human-computer interaction researcher, co-founder of CMU's Entertainment Technology Center (www.etc.cmu.edu), and creator of the Alice (www.alice.org) software project. Other videos by Randy, including downloadable versions of this and other talks, can be found at www.cs.virginia.edu/robins/Randy