There is only one thing a philosopher can be relied upon to do, and that is to contradict other philosophers.
Faith embraces many truths which seem to contradict each other.
You are a woman: you must never speak what you think; your words must contradict your thoughts, but your actions may contradict your words.
All of which was OK, as that proved then, I certainly wouldn’t contradict it as a necessary sense of things.
I think the existence of zombies would contradict certain laws of nature in our world. It seems to be a law of nature, in our world, that when you get a brain of a certain character you get consciousness going along with it.