On Sunday afternoon next to his apartment complex in Seoul, Min-ho Park is waiting for the bus. At lightning speed, he types a text message to let his friend know he’s on his way. Min-ho is never without his phone. In fact, he’s already bought a ticket on his phone for a movie he and his game app on his phone, and puts his earphones in his ears. Most of the other people on the bus who are Min-ho’s age are doing exactly the same thing.