Nihilism presents significant challenges to meaningful dialogue, as it fundamentally questions the nature of existence. A nihilist often doubts not only the reality of others but even their own existence, which leads to a breakdown in communication and understanding. Without a shared basis for reality, discussions become futile, as there is no mutual ground from which to engage or exchange ideas.

This philosophical stance, as highlighted in Victor Hugo's "Les Miserables," emphasizes the isolation that can stem from such doubt. When one begins to see reality as questionable, genuine connection and discourse become nearly impossible, leading to a pervasive sense of disconnection in relationships and society at large.