LIGHT, SOUND, BEAUTY & WISDOM for the Sheeple, but for alien colonies deep underground . . . A message?
Big crop circles could carry binary encoded messages, in pieces on several bands or wavelengths to be collected, decoded and viewed by the intended recipients! If the technology were not difficult, messages could come fron disparate sources, even. Its well designed and cleaver, but with as many people as work on Crop Circles, you would think something this simple would already be discovered!!
A season with attentive ham operators might give us the answer . . .
Mind is the rider.