https://www.youtube.com/watch?v=hJnfTAs4BtM
Five years later and the mystery continues. That is, if your are curious enough to keep asking questions.
The idea that this is an example of portal technology is quite fascinating.
Of course, inter dimensional travel would have to be indefinitely kept secret.
It would involve such a high level of science & technology that could be used to improve various things in the world. However, the powers that be would rather put most of the money & power into war, death & destruction. Its almost like something likes to feed of planet in a perpetual stat of war. Perhaps something manipulative from another dimension