There is something about watching the reels spin as the landscape scrolls past. The growing tension as your train nears a station feels oddly similar the moment before the reels settle. And a slot session has a definite start and end point. It suits the unpredictable timetable of British trains perfectly. Whether you’ve got twenty minutes from York to Leeds or a two-hour crawl from London to Birmingham, you can start and stop without any fuss. That flexibility turns it from a simple distraction into a proper little pastime.