If I think I know everything that I want and like, and I also think I know where and how I’ll find it—imagining all of this stretching endlessly into the future without any threats to my identity or the bounds of what I call my self—I would argue that I no longer have a reason to keep living. After all, if you were reading a book whose pages began to seem more and more similar until you were reading the same page over and over again, you would put the book down.