Why did Miller have a difficult time creating the characters exactly as they were in real life?

Miller faced challenges in creating characters that mirrored real-life individuals due to the complexity of human behavior and the nuances of personal experiences. Real people often exhibit contradictions and evolve over time, making it difficult to capture their essence in a fixed portrayal. Additionally, Miller aimed to convey broader themes and societal critiques, which sometimes required characters to embody certain archetypes or ideals rather than remain true to their real-life counterparts. This artistic license can lead to a divergence from reality in favor of dramatic effect and thematic depth.