"Hyperdiffusionism is a pseudoarchaeological hypothesis that postulates that certain historical technologies or ideas were developed by a single people or civil

"Hyperdiffusionism is a pseudoarchaeological hypothesis that postulates that certain historical technologies or ideas were developed by a single people or civilization and then spread to other cultures. Thus, all great civilizations that engage in what appear to be similar cultural practices, such as the construction of pyramids, derived them from a single common progenitor." https://en.wikipedia.org/wiki/Hyperdiffusionism https://en.wikipedia.org/wiki/Hyperdiffusionism Thor Heyerdahl advocated hyperdiffusionist ideas, and to his credit showed two such routes were possible. However, "His hyperdiffusionist ideas on ancient cultures had been widely rejected by the scientific community, even before the expedition." https://en.wikipedia.org/wiki/Thor_Heyerdahl https://en.wikipedia.org/wiki/Thor_Heyerdahl I write more about it at https://news.ycombinator.com/item?id=44399051 https://news.ycombinator.com/item?id=44399051 .