How can we be so arrogant to think that we are the only ones in the universe ?
I have used the "ant analogy" in my discussions with friends on the subject of ufo's. Basically it revolves around an ant crawling across Yankee Stadium (don't know why I picked the Yankees) while 50,000 people are eating their hot dogs and drinking their beer and watching a baseball game. The ant has no clue as to the game of baseball and Budweiser beer. The ant is after a crum of food or is trying to find a tunnel to go home. The ant has no realization that he/she may get stepped on by Derek Jeter's cleat while he is tracking down a ground ball while playing shortstop.
Here's another ant analogy I came across from Dr.Michio Kaku, "lets say we have an ant hill in the middle of the forest. And right next to the ant hill their building a 10 lane super highway. and the question is "would the ants be able to understand what a ten lane super highway is? Would the ants be able to understand the technology, the intentions of beings building the highway next to the ants? Lets say you go down to the ants and you say to the ants "I bring you trinkets. I bring you beads. I bring you knowledge. I bring you nuclear energy. I bring you dna technology. I bring you utopium. take me to your leader." Is that what you say when you bump into ants? No. Most ppl simply, step on a few of them. Now if we are really a type 0 civilization, and beings of a type 3 civilization can soar across hyperspace, they are perhaps millions of years more advanced than us. the distance between us and ants, would be the same comparable distance between a type 3 and a type 0 civilization. In other words, we are so arrogant, we're so conceited, that we say "They MUST visit us." We're so important that they are going to interrupt all their business, just so they can come to us and give us a little bit of super technology."
We are the ants.