Passage Summary: Even though ancient tradition says Homer wrote both the Iliad and the Odyssey, the books are so different in style and detail that they probably had different authors.

Conclusion: The Iliad and the Odyssey were almost certainly written by different poets.

Reasoning: The two poems exhibit major differences in tone, vocabulary, and the specific details of their fictional worlds.

Analysis: To weaken this argument, we need to find a reason why a single author might produce two works that look very different. The argument assumes that a single poet's style and attention to detail would remain consistent across different works. We should look for an answer that suggests authors often change their style over time, or that the specific subject matter of these two poems would naturally lead to different tones and vocabularies. If we can show that such variation is normal for a single artist, the evidence of 'difference' no longer proves 'different authors.'