Queen C. opened the great hall doors and stood there covered in blood and proudly announced that her daughter Iphigenia's slaughter had been avenged. Cytemnestra and Aegisthes didn't get off scot-free, they were eventually assassinated by her son Orestes, but that's another twisted story. Not satisfied with just his death, the goddess Athena laid a thousand year curse upon his city. However, the Cassandras out there are the ones we should've listened to but didn't, and have lived to regret it. If we learn anything from the Cassandra story it should be to listen carefully to people giving what might seem like odd bits and bobs of information, or full-blown theories which initially sound screwy.
Satellite photography seems to offer proof, but the final verdict is still out.
This kicks the foundations out from under our isolationist attitude. We and every living thing on the planet could truly be alien life forms from outer space. Particularly since the things he foresaw will have great effect on lots of us if they do indeed come about. Most religions have prophets with varying messages and varying interpretations of the outcomes. Geography of the other worlds because sometimes people's consciousnesses can travel above the physical dense world and visit those realms where ideas and emotions are made, and perceive them before they precipitate down into physical dense reality.