I am a psychologist and not a theologian, so I do not know what the word "soul" means. What matters to me is a creature's capacity to feel, to suffer and to be conscious; its sentiency, not its soul, is the bedrock of my concern. Let us proclaim this creed of sentientism: that anything, human or nonhuman, terrestrial or extraterrestrial, natural or man-made, that can suffer should be included w...