@CHOUPISEY - By comparing pings. The world wide web is connected by fiber optic cables. This means that responce time between computers are exact. If you know how the webs computers are connected, it's possible to find a computer's location
Step 1: Writer takes an econ class or two Step 2: Writer, proud of new knowledge, hatches scenario that's shaky even in post-apocalyptic sci-fi Step 3: Anime publisher says, "Hey, people will think this is 'smart'" and makes it. Yay.