How does the author use foreshadowing in The Catalogue of the Universe?

When Tycho attempts to psychoanalyze Angela, he brings up the topic of why she doesn't want Robin to see her. On one hand, her reluctance to reveal where she lives doesn't make sense, on the other, it does. For Tycho, truth and common sense are like two opposites..... the truth is messy and complicated, hard to compartmentalize. Common sense, however, is far more easily placed in neat packages. This revelation foreshadows the "truth" that Angela will discover about her father, in contrast to what Dido has been telling her for her entire life.