Maybe I'm an idiot, but I'm a bit confused about part of the storyline. There are a few minor things, but the big one is after the "clouding" and human memory was erased, shouldn't there have been enough evidence for them to piece together their past. I mean, they would have been technologically advanced to pose such a threat to the Setian race and would have had lots of documentation and/or physical clues to their past. Only thing I can figure is that they were actually from another planet and placed here on an empty earth just prior to being subjected to the "clouding" event. The song suggests that they then sub-grouped with others who looked alike or spoke alike and ventured off to populate the earth. Is there a storyline for dummies that explains the series of events in more detail? Am I just overthinking this or am I missing something obvious that will help snap this whole thing into focus?
