Just in case I marked this as spoilers.... And it's an OK movie that has grown on me. I like it for what it is. However one item in the story I still don't get, at least not entirely. If the guy is in that box in some kind of simulation world how did he manage to send a text message to someone outside the box unless what they were creating was a whole universe in that box, or other reality that can be connected to the outside world? Anyone seen this movie care to comment / talk?