I was wondering?

I'm sure someone does.

But until there is proof one way or the other, it is just wishful thinking on everyone's part.

Does it seem completely improbable?  I'd so no.  Am I actively searching it out?  No. 

I think its extremely likely given the size of the universe. Perhaps even intelligent life somewhere. But we will likely never meet them again because the universe is so big. 

Just so we stay on track here, th writer did ask if we believe not if there is proof of extraterrestrials. I believe only because I find it hard to believe that:

1) If God created the Universe why would he make it so big and only give life to 1 of them.

2) As big as the Universe is and the way life has evolved according to science, I find it hard to believe there is no life outside this solar system.

Pretty much. The universe is a giant thing and may well be infinite, so it's highly likely intelligent life is out there somewhere. How abundant it is and if it is easy to travel faster than light (kind of a necessary prerequisite for actively searching it out), I have no idea. However, given a layman's knowledge of astronomy and biology, I am tempted to say that there are probably a lot of habitable planets out there, and that most of those would at some point develop complex life. However, I suspect sentient life would be fairly rare, maybe fifty or sixty sentient species in an entire galaxy, max.

According the Sumerian cuneiform tablets, the Annunaki (those who from Heaven to Earth came) genetically created our species through Genetic Manipulation as slave labor to mine Gold for their homeworlds dwindling atmosphere.Also, according to ancient Vedic scriptures there are up to 10,000 inhabited planetary systems, called Devas, in the Milky Way Galaxy alone.

And the Bible mentions the 'sons of God' (angels) taking the 'daughters of men' as wives, as well as describing other  intelligent 'creatures' and, in Ezekiel, what sounds like a spaceship encounter. Whether these things are ET in the traditional sense, or perhaps even inter-dimensional beings occupying our Earth in a different set of dimensions, is anyone's guess.

For me, belief in something has to come with some proof of existence - or at least some very plausible evidence.

I'll just say, I believe in the possibility.

 The 'Sons of God' you speak of are known as the Nephilim to the Ancient Hebrews.In the Book of Enoch, Enoch isdescribed as having "walked with God", who sounds more to me like an advanced Extraterrestrial being than anything else. Also, my beliefs are based on evidence and science, we have mounds of evidence that Extraterrestrials have visited our planet, all the 'primitive' cultures all speak of Star Beings and flesh-and-blood Gods and Demi-Gods. If you would like to learn more about Ancient Aliens, then I suggest you watch History Channel or go to Youtube and type in 'Secret Space (Volume 2) Alien Invasion'.

I think I remember brother from another username.  Go on Brother. 

Mmmwell. While ancient sources may or may not be accurate, I see little reason to believe they are more or less fanciful than, say, Star Wars or Asimov's books. There was as much curiosity and speculation then about the unknown as now. Wether that is 'proof'... not really. It was mixed with the science of the day, to be sure, but so is modern hard sci-fi. There is speculation - how could the egyptian pyramids be built so accurately, especially some of the sarcophagi - but it is allready known that a lot that was known has been lost; technology is not a one-way progress, there are setbacks and dark ages.

I would feel awfully alone if there WERE no life out there, somewhere; that alone is not reason to believe there is. However, statistics - another fanciful source, to be sure - suggest there must be. I doubt they have visited; I strongly doubt they are watching us, and I do not think it at all likely that we will see any proof of them during our lifetimes, however long they may - or may not - be. (This, also, is due to statistics.).

Then again, I find the Seti program .. interesting. First, they went looking for the possibility of life on other planets, and calling out to anyone out there. This was because they might find someone.

Then they stopped calling out to anyone out there. This, too, may be because they might find someone.

Encounters with more advanced peoples, at least in human history, has seldom been advantageous for the less advanced one.

Stephan Hawking said that we shouldn't try to contact Extraterrestrial's because it might end up like the European's discovery of the 'New World', which as we all know didn't work out well for the Natives.