Why wait?
Last summer, after making geometric patterns on a South Carolina beach using stake, rope, and shovel, Lindy suggested that I was compelled to make the designs, that there was something more going on than just my own impish artistic yearnings. I think she has moved away from the aliens to more a of an evolving-collective-consciousness that was manipulating my free will to do its bidding. Now I am also being manipulated to be skeptical about this ultimate origin for cereral art. So either way, i'm just a puppet, my free-will and independant mind are meaningless. Near as I can tell, anyway.
(Nothing personal Lindy, really. I appreciate the links you've sent me about other sand circles.)