Philosophers are much less fussy about this. They all think the same thing and they themselves are not saying it out loud because they think that everyone disagrees with them. Nothing wrong with that in the real world of human beings. Oleg Rubinsky says, the great Polish sci-fi writer Stanislav Lem devoted a lot of his works to the problem of contact between human and alien intelligence. Even when both sides recognize each other, as such, he claimed with the different evolutionary paths that each took, makes any kind of meaningful contact or comprehension almost impossible. I really don't have any idea about this very important question.