Can the world be changed by one single act? An event in the skies??
There is a document currently circulating the Internet called:
'CHANGE THE WORLD! "DECIDE WHETHER WE SHOULD SHOW UP!"'
This document claims to have been transcribed from non-terrestrial intelligences which outlines our position on earth, in terms of our geopolitics and eco-catastrophes, and which also claims that if it is the will of enough conscious people then the physical appearance of a benign alien race will manifest on earth and the 'truth' regarding our situation finally revealed.
Okay, so I am being overly brief here. In itself the document, oddly enough, is worth reading as it does'not overly attempt to coerce or convince.
Why not give the document a read and decide for yourself if you would like 'them' to 'show up'... decide with your own free will.