Passage Summary: If a writer is popular, they can imagine all sorts of people, which makes them empathetic and causes them to question their own life choices.

Reasoning: The passage establishes a conditional chain: popularity requires a specific type of imagination, which leads to empathy, which in turn leads to self-doubt.

Analysis: This is a formal logic chain: Popular -> Imaginative -> Empathetic -> Self-Doubting. To find what 'must be false,' look for a scenario that violates this chain, such as a popular novelist who is completely certain about the value of their own desires. Since the chain is 'If A, then B, C, and D,' any 'A and not D' situation is logically impossible. Focus strictly on the conditional connections provided without adding outside assumptions about novelists.