In The End of All Things, a partial origin of the Observers was revealed at last: They are a team of scientists from a very far away future, and something akin to hyper-evolved humans who have access to technology and methods to essentially displace themselves from both time and space - this lets them view and experience everything everywhere , from the beginning of time itself, to the infinite number of possible futures. That said, this sect of Observers is merely a singular, scientific cell... In "Letters of Transit", the almost full history of the Observers has been revealed. In the year 2609, Earth has become completely incapable of supporting life, and their race of hyper-evolved humans essentially traveled back in time, seeking an optimal period where they can settle down. In the yea