I believe, based on the evidence, that intelligent life is
possible elsewhere...But, there has to be a good reason why we don't find any of it anywhere when we look at the immediate neighborhood...
I think that the formulas which most folks use to deduce whether it's probable that intelligent life exists is WAY TOO SIMPLISTIC...
Anyone ever read books like Probability ONE?
http://www.amazon.com/Probability-O...id=1344970946&sr=1-2&keywords=probability+one
The author is usually cited as the first cat to string together some form of mathematical probability formula for extraterrestrial intelligent life.
The problem, as I see it, is that his formula has way too few variables up for consideration, the probabilities he assigns to each of them is far too liberal/generous/optimistic...And, of course, the book concludes with a designation of 100% certainty that there are smart souls out there.
For instance, the author begins the formula with the first variable in the equation, which is - - What's the probability that a yellow star exists? The second variable, I think, was whether that yellow star has any planets circling it that have 'water...
The variables aren't many in the equation, and certainly don't consider all the billions of things that can go wrong between the eon-long stages of 'primordial soup' at one end of the timeline, and the intricacies of advanced biological evolution at the other end...