"Precisely!" Pinkie Pie agreed with Robert, nodding her head as well, "Which makes me wonder, how many other Pinkie Pie's are out there? How many are doing other things in their lives? Maybe in one universe I'm a fish, or a rock, or a scientist." Eyebrows quirked at the idea, offering a bright smile to Robert. "It might also explain me being here, and perhaps another being in my place in Ponyville." Tapping her cheek in thought, she looked down at her hands and wiggled her fingers, bringing a giggle to her lips.
"What if..." Pinkie looked up from her hands and at Robert, "What if this is all a dream someone is having -- what if I'm just dreaming and none of this is real? What if I'm not real? What if I wake up back in my bed, does that mean you cease to exist?" A worried look washed over her features as she peered up at Robert, blue eyes wide and suddenly filled with worry. "What if the person dreaming all this wakes up?"
All this science stuff, theories, and philosophies was making Pinkie's head spin. Shaking her hair out of her face, she sighed, "What results are you hoping for when you get there? To the hospital, I mean. What if you are able to produce a tear?"