And we can't conceive of philosophy without having brains which, through evolution, are capable of doing so. I can take you in loops here all day, but I don't think that would be very productive.
Here's something productive, you said that intelligence can only beget intelligence, and regardless of how useful that idea may be(I personally see no use in it), it is demonstrably false.
Why is it demonstrably false?
Can your demonstration include something whereby we can (currently) see that it is false?
jan.