Page "Nommo" Paragraph 5

Walter van Beek, an anthropologist studying the Dogon, found no evidence that they had any historical advanced knowledge of Sirius.

Van Beek postulated that Griaule engaged in such leading and forceful questioning of his Dogon sources that new myths were created in the process by confabulation, writing that " though they do speak about sigu tolo Griaule claimed was Sirius they disagree completely with each other as to which star is meant ; for some it is an invisible star that should rise to announce the sigu, for another it is Venus that, through a different position, appears as sigu tolo.

All agree, however, that they learned about the star from Griaule ".

Carl Sagan has noted that the first reported association of the Dogon with the knowledge of Sirius as a binary star was in the 1940s, giving the Dogon ample opportunity to gain cosmological knowledge about Sirius and the solar system from more scientifically advanced, terrestrial societies whom they had come in contact with.

It has also been pointed out that binary star systems like Sirius are theorized to have a very narrow or non-existent Habitable zone, and thus a high improbability of containing a planet capable of sustaining life ( particularly life as dependent on water as the Nommos were reported to be ).