Passage Discussion

[vincent_1vs]

I'm totally lost in this passage, cannot grasp the main idea and got confused with all the details...could you please help explain it? Thanks a ton!

[ManhattanPrepLSAT1]

Here's the scale and passage map for this one! The author presents J.G.A Pocock's underlying theory, agrees with it, and then presents an alternative view that the author dismisses.

In the second paragraph the author presents an example of Pocock's work, continues with another example of his work in the third paragraph, and then assesses the relative success of both.