Some philosophers take there to be compelling arguments against the view that conscious states are metaphysically constituted by physical states. This rejection of physicalism about conscious properties certainly has the backing of intuition. (Don’t zombies—beings who are physically exactly like humans but have no conscious life—intuitively seem metaphysically possible?) However, whether this intuition can be parlayed into a sound argument is a highly controversial issue, and one that lies beyond the scope of this entry.  A majority of contemporary philosophers probably hold that physicalism can resist these arguments.[8] But a significant minority take the other side.