hyperdiffusionism
noun/ˈhaɪ.pə.dɪˌfjuː.ʒə.ni.zəm/ · /ˈhaɪ.pəɹ.dɪˌfju.ʒə.ni.zəm/
Etymology From hyperdiffusion + -ism.
1
Pseudoscience Pseudoarchaeological hypothesis that postulated that historical technologies can be traced to a single civilization.