In my humble discernment, the key to making sense of this movie and of its many twists and turns of time and the many ambiguities of the story lines, is that much of the story happens in Ocho's imagination.. If we assume the long, plodding initial scenes depicting Ocho's arrival in Barcelona are real, of his reacting to solitude and loneliness by listlessly wandering the streets, staring vacantly at nothing in particular, until he notices Javi in the plaza below and then later at the beach. At that point the story picks up and grows increasingly intricate and complicated. The ambiguity of the story, however, questions how much of the story actually happened and how much is just Ocho's imagination, just a continuation of his introspective mind through the preceding opening scenes up to that point. How much of the story is actual history and how much is fantasy? It's no surprise that Ocho's and Javi's appearance didn't change during 20 years, if in fact 20 years never went by except in Ocho's mind. Whether the details of the story are real or fantasized, this film tells a true story of the odyssey of a heart as a lonely hunter in quest of a loving human connection. A beautiful film.