Isaac Asimov's Three Laws of Robotics are usually not considered to be suitable for an artificial moral agent, it has been studied whether Kant's categorical imperative can be used. However, it has been pointed out that human value is, in some aspects, very complex. A way to explicitly surmount this difficulty is to receive human values directly from the humans through some mechanism, for example by learning them. Another approach is to base current ethical considerations on previous similar situations. This is called casuistry, and it could be implemented through research on the Internet. The consensus from a million past decisions would lead to a new decision that is democracy dependent. Prof. Bruce M. McLaren built an early (mid 1990s) computational model of casuistry, specifically a program called SIROCCO built with AI and case-base reasoning techniques that retrieves and analyzes ethical dilemmas. This approach could, however, lead to decisions that reflect biases and unethical behaviors exhibited in society. The negative effects of this approach can be seen in Microsoft's Tay (bot), where the chatterbot learned to repeat racist and sexually charged messages sent by Twitter users. One thought experiment focuses on a Genie Golem with unlimited powers presenting itself to the reader. This Genie declares that it will return in 50 years and demands that it be provided with a definite set of morals that it will then immediately act upon. The purpose of this experiment is to initiate a discourse over how best to handle defining complete set of ethics that computers may understand. In fiction In science fiction, movies and novels have played with the idea of sentience in robots and machines. Neil Blomkamp's Chappie (2015) enacted a scenario of being able to transfer one's consciousness into a computer. The film, Ex Machina (2014) by Alex Garland, followed an android with artificial intelligence undergoing a variation of the Turing Test, a test administered to a machine to see if its behavior can be distinguishable to that of a human's. Works such as Terminator (1984) and The Matrix (1999) incorporate the concept of machines turning on their human masters (See Artificial Intelligence). Isaac Asimov considered the issue in the 1950s in I, Robot. At the insistence of his editor John W. Campbell Jr., he proposed the Three Laws of Robotics to govern artificially intelligent systems. Much of his work was then spent testing the boundaries of his three laws