Observation requires experience..
Inventing requires discovery.
Discovery requires conceptualisation.
Until 1421, the island on the equator between the mainland was not verbalised by the mainlanders.
Did the Chinese Eunuchs who sailed around the world invent islands? Certainly the Chinese created the concept of a land between. The Portugese obtained maps from the Chinese. Did a map create the island?
Were the Chinese observers, discoverers or inventors? They verbalised because they saw. They saw because they went. They went because they didn't have penises?
Did the SillyCon Valley Eunuchs invent Buddhism? Did the Hollywood recording Eunuchs invent National Socialism?