LSAT Reading Comp Passage Explanations | PrepTest 139 + 138

This episode of LSAT Unplugged and Law School Admissions Podcast provides in-depth explanations of four challenging reading comprehension passages from LSAT PrepTests 139 and 138. The host walks through each passage with meticulous attention to structure, tone, and logical relationships. For PrepTest 139, Passage 3 examines the paradox of software patents: while both passages agree on systemic flaws, Passage A critiques the patent system as an outside observer, while Passage B reveals a company's reluctant participation in patent stockpiling despite opposing the system. Passage 4 dissects the Calvaria major hypothesis linking the dodo's extinction to the tree's decline, emphasizing how the author dismantles the theory with evidence showing the tree is still reproducing and alternative causes like invasive species. In PrepTest 138, Passage 1 explores corridos—border folk songs—highlighting how their formal conventions serve as cultural glue for communities. Passage 2 traces an evolutionary arms race between plants and insects, showing how secondary plant chemicals led to insect specialization. Passage 3 reveals how economists sidelined Adam Smith’s 'pin factory' concept of increasing returns due to lack of mathematical tools, only reviving it when formalism caught up. Finally, Passage 4 compares legal theory (Passage A) on selective enforcement with a real-world case (Passage B) where water shutoffs were used to pressure debtors, arguing for systemic legal reform over discretionary enforcement. The host emphasizes critical thinking, tone analysis, and avoiding common traps like misreading agreement or overvaluing hypotheses. Key takeaways include: (1) Recognize that agreement between passages doesn’t imply identical stance—context and perspective matter. (2) Pay close attention to authorial tone and hedging language (e.g., 'semblance of rigor', 'capricious enforcement doesn't appear to be the central tendency'). (3) Understand that the most important paragraphs often come late and serve to undermine earlier claims. (4) Distinguish between what a passage says and what it implies—especially in science and social science passages. (5) Avoid treating examples as support when they are used to illustrate a point, not prove it. (6) In dual passages, look for nuance: one may defend a practice while the other calls for structural change. (7) The LSAT rewards precision in scope and relationship analysis. (8) Always check your understanding by asking: 'What is the author really saying?' and 'How does this fit the bigger picture?'