[gfodor]

Lots of people in this thread are speculating about the plausibility of an ET hypothesis, which is far more nutty than what I wrote here. What I wrote here is unorthodox, but an ET hypothesis comparatively is absurd, particularly if you are going to entertain that based on the existing evidence. The existing evidence would not imply ET as much as another Earth species interacting with us. It also can imply that people are crazy or lying, of course, but I'm talking within the realm where we are going to speculate about ET.