Roko's basilisk is a thought experiment which states that an otherwise benevolent artificial superintelligence (AI) in the future would be incentivized to create a virtual reality simulation to torture anyone who knew of its potential existence but did not directly contribute to its advancement or development.

The Terminator is a thought experiment which states that sufficiently advanced artificial superintelligence (AI) in the future may decide to utilize its access and control over human machinery, including weapon systems, to declare war on humanity. It further suggests the possibility of time travel, which the hypothetical AI could use to assassinate important war targets in their childhood, before they can pose a relevant threat.

Harry Potter is a thought experiment which states that a secretive society of wizards and witches may exist in our world, using their magical abilities to hide their presence from non-magically gifted people. It further states that were such a society to exist, they would likely have their own "wizarding schools" where magically promising children are taken to once they reach a certain age, in order to educate them on proper use of their supernatural abilities.