The quote from Orson Scott Card's "Xenocide" highlights the inherent uncertainty in predicting human behavior. Even with a deep understanding of someone’s past actions, motivations, and reflections, the future remains unpredictable. This suggests that human behavior is influenced by numerous variables, making it complex and fluid.

This uncertainty in predicting actions emphasizes the limitations of our judgment. Individuals are not static; their decisions can be swayed by new experiences or changing circumstances. Thus, while we may strive to comprehend someone’s character, our predictions about their future actions are always inherently tentative.