This is the question with which Tirassa grapples. If phenomenon x is enjoyed by humans, then it is the product of the selective pressure which drives evolution. If A1, then human consciousness isn't the product of the selective pressure which drives evolution. Human consciousness isn't the product of the selective pressure which drives evolution. Humans are conscious.
Human consciousness is the product of the selective pressure which drives evolution.
This is a powerful little argument, but hardly invulnerable. Or perhaps he would simply rest his case for premise 3 on arguments from the fact that no consciousness- evolution connection is forthcoming. To put it biographically, the claim is that when the great dramatist Henrik Ibsen says I have to have the character in mind through and through, I must penetrate into the last wrinkle of his soul. But I have to have his exterior in mind also, down to the last button, how he stands and walks, how he conducts himself, what his voice sounds like. Then I do not let him go until his fate is fulfilled.