UFO'S. Another answer

During an online Astronomy lecture that i listened to a few years ago, as part of my Astronomy 101 course, the question came up about UFO'S. The existence of life on other planets etc etc. One of the Professors I had contact with at the the time at Berkeley University , (English guy, but forgotten his name) made it very simple for me to understand. UFO's are exactly that...Unidentified Flying Objects or even easier, Unclassified Flying Objects. He went on to say, " Imagine the Universe being born out of the same stuff, where all life itself begins at the same time. Now imagine that the Earth is created with all it's meteor strikes, volcanoes and earthquakes, and then it finally settles down and becomes a haven for life. Then after millions of years we get dinosaurs, and they are wiped out, by what we assume to be a massive meteor strike. And then life started all over again, but this time man became the dominant race, then we lead up to present day.
If you put all these equations together and assume that life everywhere has had the same problems as Earth had back then, then we can also assume that life elsewhere will be on a level par to us. The result being, simply, that yes, life exists on other planets, but given the time scale, they are technologically about the same as we are and therefore UFO'S are a figment of someone's imagination."
Most UFO sightings have been explained away quite easily, as either a plane or a weather balloon, and as no concrete evidence has been put on the table for everyone to stare at, I have to go along with the Professor.
I would love to believe in the little green man, but the guy has a point. Contact???... I doubt it for a very long time.