Yeah for sure they are real. Its a mathematical probability that we have aliens living in this universe.. Will we ever go to their planets or them come here? Probably not its too far.
Its too far you say?! What about wormholes and stargates and hyper drive and FTL and and and Jaffa Cree!
I hear that the skunkworks factory has FTL ships that the US is using. Good Ole' Ben Rich told us this on his deathbed. Apparently.. According to some guy.
About the existence of newcomers, we begin to talk very carefully and therefore such conversations go very strongly and into another plane. The practical psychological stresses of other subscribers can lead to the fact that this will cause a storm of negative emotions in others and thus nobody will be able to prove their views about the existence of someone else in this universe.