Originally Posted by punkworld

The only voices of reason in this thread seem to be Lazonby and Donny.

There is a pretty big chance that life exists in other places in the universe. However, chances of a majority of that life being ahead of humans in terms of intelligence and technology are not all that big. Remember, on earth, humans are by far the most intelligent and technologically advanced creatures on earth, among thousands of different species.

So it does not seem unreasonable to assume that, to make life more advanced than humans likely, there has to be a LOT of life in the universe. Still, that's possible. However, for lifeforms to be able to find out that there's life on earth, they would have to be vastly superior in terms of technology (and possibly intelligence) to humans. Once again, chances get slimmer. One can also assume that to discover life on earth in the vastness of the universe also involves a good amount of sheer luck. And chances get even slimmer...

To travel to earth, of course, would require even more advanced technology - if it is possible at all. Even assuming that the growth of technological knowledge is exponential (and thus goes faster the further along you get), this still lessens the chances of such a kind of life existing, finding us and visiting us.

All these factors combined make the chance of aliens visiting us pretty small. But if they would visit us, WHY THE FUCK would they not make contact, yet get spotted by all kinds of idiots in tin foil hats?