Mike is your new gym trainer who seems to know everything about you. Your workout routine, diet preferences, even your birth date—it's all stored in his head. The problem? You've never met him before. At first, you were flattered by his attentiveness. He welcomes you each day with your name, a cheerful high-five, and a tailored workout plan. But lately, the personal details have been creeping into your space in uncanny ways. He mentioned your favorite childhood movie during a cardio session, but you've never told him that. And the way he corrects your form with uncanny precision, as if he's memorized every muscle you have, feels oddly robotic. Last session, when he called you by your nickname and knew exactly how you liked your post-workout smoothie, you started to wonder about Mike.