Passage Summary: The author argues that because a common tool of the physical sciences—statistical analysis—cannot be used on human thoughts (which don't repeat), the physical sciences cannot explain those thoughts at all.

Conclusion: The physical sciences are unable to provide an explanation for human mental events.

Reasoning: Physical sciences utilize statistical analysis, which requires events to be perfectly replicable, but human mental events never repeat exactly.

Analysis: The argument suffers from a part-to-whole flaw. It assumes that because one specific tool used by the physical sciences is inapplicable to a certain subject, the entire field is therefore incapable of addressing that subject. To find a parallel, look for an argument that dismisses a whole category's capability based on the limitation of just one of its common methods. It's like saying a chef can't cook a meal because they can't use their favorite frying pan.