The character Clevinger from "Catch-22" is portrayed as someone who lacks depth and comprehension. Yossarian views him as rather foolish, drawing a parallel to individuals who appear distorted in a museum, suggesting that Clevinger's perspective is skewed and insufficient. His tendency to focus on a single aspect of any issue prevents him from seeing it in a broader context.

This description highlights a key theme in Heller's novel about the limitations of rigid thinking. Clevinger's inability to consider multiple viewpoints symbolizes the challenges faced by individuals who cannot grasp the complexity of situations, leading to a disconnect from reality and understanding.