In this chapter, we are told that love is not based on the hours and days of a person's life, but on the "edge of doom" . In other words, love doesn't just last for a few weeks or months; it lasts all the way to the end of time. We're told that when the old man and the young man are 27 and 17 years old respectively, they're going to switch from being friends to being lovers. We also learn that when