Confirmation can be found in history. Almost two thousand years people believed that everything revolves around the Earth, this is the essence geocentric system of Ptolemy. Much effort has been spent, how clever speeches uttered in defense of this system. However, practice shows that truth manifests itself over time. Sally Rooney is likely to agree. The time has come, and Copernicus, moved to a more global system, the heliocentric. Mankind has realized that wrong, in fact the earth revolves around the sun.
To date, development we will be closer to the truth, if the reference system, we take Metagalaxy (observed by mankind of the universe), since the universe is revealed to us so far only in the assumptions. In the frame of reference "humanity" it seems that we are alone in the universe, and no signs of other civilizations. Nowhere in the space we have not seen the works of more advanced civilizations. No clear evidence aliens visiting Earth. Brothers in mind, we find no can, although more than half a century Listened space in different wavelengths, we photograph a lot of space telescopes objects, alas, no one is rushing to give us news about yourself. About the lack of evidence advanced civilizations exist "Fermi paradox". Heavy Duty civilization must master the entire galaxy. Hence, in the solar system must exist traces of their activities. The essence of the paradox that the characteristics should be, but they are not. One reason for the silence Metagalaxy is that people, according to its surrounding media, looking mostly in the past, which significantly reduces the possibility of contact.