Gordon Ramsey conducts a really interesting blind test with food that I've seen him do on some of his shows. He'll blindfold chefs, then put various foods in their mouths and have them try to guess what it is. People are wrong more than they are right. They miss things like Watermelon, Chicken, Green Beans etc. It's amazing. Based on this, is it safe to assume that foods don't have a discernible unique taste?