Those artifacts are pretty suggestive of alien visitations!! Thank you for posting the video, ff.
With the exception of Whites, the rule among the peoples of the world, whether residing in their homelands or settled in Western democracies, is ethnocentrism and moral particularism: they stick together and good means what is good for their ethnic group." -Alex Kurtagic
It's looks like Mr.Spielberg got a sneak preview of these artifacts.
Thanks for the information!
The most dangerous man to any government is the man who is able to think things out... without regard to the prevailing superstitions and taboos. Almost inevitably he comes to the conclusion that the government he lives under is dishonest, insane, intolerable. ~ H. L. Mencken