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-London night (with the aid of ice-cream and caffeine drinks). In late 2008, SCI-FI-LONDON hosted its very first Oktoberfest: a one-day festival featuring new films and all-nighters, held at its regular London venue: the Apollo Piccadilly Circus. A second Oktoberfest was held on 23/24 October 2009, with a third on the 14-16 October 2010, at The Royal Observatory, Greenwich, the Royal Society and the Apollo Piccadilly Circus. On occasion, SCI-FI-LONDON has also hosted other events, either outside London, or at other times of the year. In 2005, SCI-FI-LONDON took its feature films, short films and all-nighters On Tour, to Edinburgh, Liverpool,