Three Laws of Robotics authorities such as doctors, teachers and so forth which equals the Second Law of Robotics. Finally humans are typically expected to avoid harming themselves which is the Third Law for a robot. The plot of "Evidence" revolves around the question of telling a human being apart from a robot constructed to appear human – Calvin reasons that if such an individual obeys the Three Laws he may be a robot or simply "a very good man". Another character then asks Calvin if robots are very different from human beings after all. She replies, "Worlds different. Robots are essentially decent." Asimov
Sci-Fi on the Rock Rock has had a number of guests of different types. Below is a list of guests they have had at their festival. The Sci-Fi on the Rock committee spends the rest of the time they are not planning the convention going to outside events. Often these events invite the public to join them in doing different things. Some events that Sci-Fi on the Rock has hosted or attended in the past include: Merry Geek-mas is a craft fair hosted by Sci-Fi on the Rock around the end of November or beginning of December each year. Sci-Fi on the Rock vendors