Why compare stuff happening elsewhere that you don't know about (other planets) when you can compare stuff that you know about (here on earth?). My point is th

Why compare stuff happening elsewhere that you don't know about (other planets) when you can compare stuff that you know about (here on earth?). My point is that intelligent life as defined above seems not to be a certain development of evolution. I showcased the evidence for that. You seem to think that it is, but you didn't argue why - other than "it happens so it will for sure on other planets as well". There are tons of other traits that are singular in the evolutionary tree, simply because they didn't stick for whatever reason. If intelligence was as common as binocular eyesight, say, then we'd see it appearing in all kinds of very different species.