LS:" ...the Buddhists say they got their version from a "non-human source."
SC: Okay - I have to tell you I stopped reading your post when I read the above statement. Invoking 'ancient aliens' simply does not cut it for me, especially so when the same AE cubit can very easily be obtained from using the sunset at Giza (on the equinox) and the swing of a simple pendulum - easily accessible and obtainable to humans.
On that note I think we shall have to go our separate ways. I see no reason to venture down such a path when such a creation (i.e. the AE cubit) is perfectly within the realm of human endeavour without external influence or the need to invoke 'ancient aliens'.