Jack wouldn't say that they were fake. Someone had to know something about the trolls to create them - there's no way that there would be that much of a coincidence. The trolls built the universe, after all, they probably had some hand in shaping it as well, without even realizing it. "Hey, I dunno. Some people really believe in astrology things. I mean, according to your astrology, as an Aquarius you should work well with Gemini, learn from a Pisces, and not work well with a Scorpio. Does any of that sound right to you?"