Jordon 179 asks an question worthy of endless debate in his blog, which I copy here to see if my readers also wish to discuss it. He asks about life in the universe:
My question is simple, but I'm going to break it down into sub-questions, and I'd be very interested in hearing both people's opinions of the sub-questions, and their reasons why they hold these beliefs. You don't have to answer all of this, though the more you do the more interesting I'll probably find the answers. The reasons are important, though ... I'm especially curious as to why people think things.
Do you think that there is extraterrestrial ("not from this Earth," thus excluding astronauts, stray Earthly bacteria on probes, etc.) life anywhere in the Solar System? In the Universe?
Do you think that there is extraterrestrial sentience (higher animal level) anywhere in the Solar System? In the Universe?
Do you think that there is extraterrestrial sapience (ape to human level) anywhere in the Solar System? In the Universe?
Do you think that there is extraterrestrial technological culture (at least Paleolithic level) anywhere in the Solar System? In the Universe?
Finally, do you think that there is extraterrestrial civilization (at least agriculture + writing) anywhere in the Solar System? In the Universe?
And for each question -- how common do you think it is?
I deliberately arranged this like a sieve, so that answering any one level of question in the negative would normally answer the following questions in the negative, so as to save people time
My comment: It is an interesting question, more as a test of psychology than of fact. As far as we no, there is not even the smallest scintilla of evidence for the existence of life outside the earth's atmo, except perhaps for one ambiguous rock from Mars, which hinted at microbes there.
It is a blank on which the imagination is free to paint whatever pictures it wishes. ( Collapse )