Why We Like What We Like By Alva Noë   Can you tell the difference between gourmet liver paté and dog food? I mean, can you tell the difference by taste? Many of you are probably pretty sure that you could, and also that you could tell the difference between a $100 bottle of a splendid vintage and some $5 schlock, right? But can you really? In a blind taste test? Scientists have looked into these…