Not to say that I am a believer in the whole
Dogon thing, but the criticisms levelled don't add up.
1) The French anthropologist claimed to have got in tight
with the priests, and they told him their secrets. There is
no sugesstion that this was common knowledge amongst the Dogon
or that they would tell just anyone (like investigators who
came later).
2) 60 Year festivals don't match the 50 year orbit, but do
match a 50 year orbit + 10 year journey time (Sirius is
approx 8.7 light years away).
3) In the Dogon story, we know nothing about the extra-terrestrials
other than that they are amphibious, and so NOT much like us.
IF they existed they may be based on a very different life
principle.
I'm not saying I beleive, just that the criticisms don't really
cover the ground well.
I admit I find it hard to accept that we are the only
intelligent life in such a vast universe, and have no objection
to the idea that, compared to others, we might be frickin' retards