Hi Ritva

I was thinking prior to the 10th dynasty, I was thinking precession and the 72 years periods as mentioned by you and the enormous time it would take to record these events before anything came of it.

Their whole belief system was based on the sky?

I dunno but the concept of maat seems more at home with the balance one sees in the close up nature of plants, animals and the human ordeal. We agreed that geometry played a part and as you probably know that's what I'm heavily into.