Researchers speculate that an unidentified, technologically advanced population could be living among humans secretly on Earth. The research suggests the existence of non-human underground civilizations and ancient, highly advanced human civilizations walking among us.
Key Points
Researchers hypothesize sightings of UFOs may be activities of intelligent beings concealed on Earth
Claims of 'remnant forms' of ancient civilizations and non-human underground civilizations
Possibility of hidden occupants like earthbound angels or fairies on Earth
Pros
Encourages scientific community to consider claims with openness and humility
Cons
Likely to be regarded skeptically by most scientists