so in this view I'll ask (with a nod towards Fermi of course)... just where are all these AIs you speak of?

wouldn't these AIs begin to contact and perhaps battle with each other? certainly it seems to me, there would be some tell-tale sign left over from the expected millions of AIs, right?

now of course, it's impossible to tell what super intelligent AIs would choose to do... but I do feel that an extension of Fermi's paradox would be needed with your comment.