I'm concerned about the overuse of spectacular places. And there's no real wilderness left and so there's a heartbreak there. You can go anywhere and be rescued through your cell phone and have some helicopter drop down.
Emily said. . . Well, I read that it's important to sleep. While you sleep, the hippopotamus in your brain replays things that happend during the day, e. g. what you studied. So therefore it remembers it for you.