Original sentence: Although not a testable scientific explanation, the belief that a God or gods has placed humanity as the only intelligent life in the universe is widespread through cultures and history.For example, one such scenario is that human beings do in fact interact with many alien cultures, but that Earth functions as a kind of prison colony, with the aid of memory wipes.It may be that intelligent alien life forms not only exist, but are already present here on Earth.Many UFO researchers and watchers argue that society as a whole is unfairly biased against claims of alien abduction, sightings, and encounters, and as a result may not be fully receptive to claims of proof that aliens are visiting our planet.Others use complex conspiracy theories to allege that evidence of alien visits is being concealed from the public by political elites who seek to hide the true extent of contact between aliens and humans.Scenarios such as these have been depicted in popular culture for decades.Tenets of the Judeo-Christian tradition can be interpreted to position human beings as unique in the universe and have created ambivalent ideas regarding the question of alien life.They are not detected because they do not wish it, human beings are technically unable, or because societies refuse to admit to the evidence.While not necessarily an outcome of the Rare Earth Hypothesis, like Rare Earth it is a variant of the strong anthropic principle, which in this case becomes teleological: the universe has to be this way, or it was designed to be this way, for the express purpose of creating human intelligence