I'm sure the universe is full of intelligent life. It's just been too intelligent to come here.
The problem with ID, of course, is that it leaves open the possibility that the intelligence behind nature may have a moral interest in us, having communicated already with humanity in the past, and might try to boss you around in your private affairs. With hypothetical advanced aliens residing at a safely distant address in the hypothetical multiverse, that is - to the relief of folks like Gribbin, Dawkins and the New Scientist - manifestly not the case.
