I wanted to like this, but IIT just seems like a lot of hand-waving. "to hypothesize that a physical system is “conscious” if and only if it has a large value

I wanted to like this, but IIT just seems like a lot of hand-waving. "to hypothesize that a physical system is “conscious” if and only if it has a large value of Φ" By this measure, would a long mathematical proof or an orchestral symphony be conscious? If so, how does this actually help us understand how subjectivity relates (or doesn't) to all this? [1] http://en.wikipedia.org/wiki/List_of_long_proofs http://en.wikipedia.org/wiki/List_of_long_proofs