I'm intrigued by the metaphor, but your referents are not very clearly stated...

By "Optimizing for BTC" do you mean optimizing for the highest number of transactions? You can't mean total BTC outstanding because that's pegged to an equation.

And in terms of the "intelligence" are you referring to the protocol itself, or the human/machine apparatus around it that's trying to make money?

On the face of it, it doesn't seem particularly different the the "emergent superintelligence" optimizing for USD, but I like your idea of looking for emerging fixed incentive structures as a place for AIs to run amok.