A materialist view of reality leaves out much of reality (love, reason, mercy, truth, etc.) so skittish materialists often call themselves “physicalists.”
It’s helpful, as with his Third Way, to begin with a metaphor, in order to get an intuitive feel for the proof.
“Although higher thought is not localizable to one region of the brain, it may be distributed to neurons throughout the brain.”
The rule, as he explains, is arbitrary. True, the designing agent inferred by ID theory is not directly observable, but neither are the elementary particles.
If the universe were a radio and the desired setting allows for life, it would have dozens of dials for setting the values of the universal constants.