Where are they?
[Source.Wikipedia]

In 1950, while working at Los Alamos National Laboratory, the physicist Enrico Fermi had a casual conversation while walking to lunch with colleagues Emil Konopinski, Edward Teller and Herbert York.
The men lightly discussed a recent spate of UFO reports and an Alan Dunn cartoon facetiously blaming the disappearance of municipal trashcans on marauding aliens. They then had a more serious discussion regarding the chances of humans observing faster-than-light travel of some material object within the next ten years, which Teller put at one in a million, but Fermi put closer to one in ten. The conversation shifted to other subjects, until during lunch Fermi suddenly exclaimed, "Where are they?" (alternatively, "Where is everybody?")
One participant recollects that Fermi then made a series of rapid calculations using estimated figures.
According to this account, he then concluded that Earth should have been visited long ago and many times over.

The extreme age of the universe and its vast number of stars suggest that if the Earth is typical, extraterrestrial life should be common. In an informal discussion in 1950, the physicist Enrico Fermi questioned why, if a multitude of advanced extraterrestrial civilizations exist in the Milky Way galaxy, evidence such as spacecraft or probes are not seen. A more detailed examination of the implications of the topic began with a paper by Michael H. Hart in 1975, and it is sometimes referred to as the Fermi-Hart paradox.Another closely related question is the Great Silence even if travel is hard, if life is common, why don't we detect their radio transmissions?

It may be that non-colonizing technologically capable alien civilizations exist, but that they are simply too far apart for meaningful two-way communication.
If two civilizations are separated by several thousand light years, it is very possible that one or both cultures may become extinct before meaningful dialogue can be established. Human searches may be able to detect their existence, but communication will remain impossible because of distance. This problem might be ameliorated somewhat if contact/communication is made through a Bracewell probe. In this case at least one partner in the exchange may obtain meaningful information. Alternatively, a civilization may simply broadcast its knowledge, and leave it to the receiver to make what they may of it. This is similar to the transmission of information from ancient civilizations to the present.

  <It appears loud and clear that civilizations tend towards extinction and strongly towards it. Case opposite, they did not find us yet, due to the very long distance, but also you may consider: We humans did not find them yet.

There's only one way to travel across the galaxy and this way does not need any kind of superfine gasoline, this way consists in the space-time manipulation, and here we pasted some accredited work beyond it by M.Tegmark:

[SOURCE.Wikipedia]
Max Tegmark expands on the preceding argument in the following anthropic manner. If T differs from 1, the behaviour of physical systems could not be predicted reliably from knowledge of the relevant partial differential equations. In such a universe, intelligent life capable of manipulating technology could not emerge. Moreover, if T>1, Tegmark maintains that protons and electrons would be unstable and could decay into particles having greater mass than themselves. (This is not a problem if the particles have a sufficiently low temperature.) If N>3, Ehrenfest's argument above holds; atoms as we know them (and probably more complex structures as well) could not exist. If N<3, gravitation of any kind becomes problematic, and the universe is probably too simple to contain observers. For example, when N<3, nerves cannot overlap without intersecting.



Via tachyons and so on, mankind is in the right direction in order to retrieve this final power and honour itself as god.

Travelling across planets similar to our beloved Earth we shall save our species, all of its cultures, its arts and any kind of its history memories.

However this is not the future that our civilization is going to cross, and we all know it.
The world as we know it today will change in a dark tenebra, economic crisis won't end, overpopulation won't end, wars won't end, climate changes involving huge disasters won't end, this... won't end.

Powerful Minds know all of this, over some age they never thought to release their power in order to stop the extinction of the human race, but now they have to.

Illuminati, the holy ones, they shall save this planet from an infamous fate, from the death of human cultures, from the death of the last man on Earth.

The Illuminati master-plan is simple and complex in the same time:

they have to decrease human population in a considerable number: 80% less than now.

they have to secure areas where the survivors will live and work for the space-time manipulation master-plan.




They have to instaurate a hierarchy and a total control over the survivors, 1 minute of work beyond the reaching of the masterplan must not be lost, because a day in the future our sun will die and 8 minutes later Earth will die too .

>Then what was the point of any of it? Art, beauty, all gone. The Greeks. The Constitution.

We've been dying for freedom and ideas. None of it meant anything?
Our cultures gave enough to this planet, humans felt fully the beauty of life and any sacrifice they committed cannot be spent in vain, regardless of the worth of human species, its valour, its honour.
You think that all of this is pure fantasy exiting from a fantascientific thriller with a high heartbeat.

We don't know the details,
We don't know if the Echelon Countries are the only candidates that shall survive.

Instauring the All Seeing Eye Government.



..
We don't know the future.
We tried to hypothesize what's coming, a pure rational processing of data, retrieved from history of humans, from their cultures, their beliefs, and pure facts.
...

>You may slow down this process or potentially you could block it forever, bringing mankind to its final tragedy, it’s vanishing from this galaxy as it never existed, as if You never existed, as any human existence never happened.

>You may accelerate this process by spreading away this apocalypse revealed, let it happens, mankind and all of its creations shall survive forever, your existence won't be spent useless, worthless, and you shall win against the death.