Three Laws of Robotics robot's entire developing consciousness is based. This concept is largely fuzzy and unclear in earlier stories depicting very rudimentary robots who are only programmed to comprehend basic physical tasks, where the Three Laws act as an overarching safeguard, but by the era of "The Caves of Steel" featuring robots with human or beyond-human intelligence the Three Laws have become the underlying basic ethical worldview that determines the actions of all robots. In the 1990s, Roger MacBride Allen wrote a trilogy which was set within Asimov's fictional universe. Each title has the prefix "Isaac Asimov's" as Asimov had approved Allen's outline
Sci-Fi on the Rock Apart from the media guest Q&A's, autographs and photo sessions, there are many other workshops during the festival, these change yearly but in the past have included: Making its first appearance at Sci-Fi on the Rock 2009, the Cantina is an informal concert/variety show held on one of the evenings of the festival. Performers opt to play Sci-Fi related music, known as Filk, but that is not always the case. The Cantina features performances by musicians involved with the festival, an open mic, and there is an improvised acting piece prepared that audience members are call upon to perform. The