Daniken's theory is based on the belief that ancient visitors from outer space arrived on Earth many thousands of years ago and their presence played a role in the evolution of humanity. Although some of this Swiss researcher's views have not received the approval of the scientific community, some of his ideas sound plausible.

The credibility of some of Daniken's theses is justified by the striking similarities between drawings and sculptures created by different ancient cultures. It is impressive that similar symbols are being discovered used in distant ancient civilizations. Moreover, fragments of ancient writings indicate that the inhabitants of ancient times could come into contact with modern and advanced technologies.

Although some of Däniken's ideas are controversial, his work has helped stimulate interest in exploring the potential impact of ancient space civilizations on human development.