Williams inverts our usual thinking about distance—we imagine it measured in miles or meters, yet he reminds us that separation can be *temporal*, not merely spatial. Two people in the same room can be infinitely far apart if years of silence or misunderstanding stretch between them, while lovers separated by continents may feel closer than ever. What makes this particularly sharp is that physical distance we can traverse with effort, but time's passage cannot be undone or crossed; we can only move forward through it. Consider how estranged siblings sometimes find that a decade has widened the gap more thoroughly than any geography could—they've become different people, and no train ticket can recover what was lost in the intervening years.