Time travel. Any writer daring to dabble in this department has their work cut out for them. Every action has a reaction, and so on and so forth. So, when reactions to things start happening before the actions that cause them, well - you get the picture. Looper is full of these sorts of moments and they're moments that wouldn't make sense anywhere else, moments that'd have you chucking popcorn at the screen in utter frustration. But here, it's more of a 'no questions asked' affair. The film doesn't promise any answers to the questions we might have and it never tries to guess what we're thinking. It gives us just as much info as we need to understand the story rather than the science because, after all, everybody knows a good story makes a fab movie.