June 2014 LSAT
Section 2
Question 2
Emil-Kunkin on September 29, 2023
You're totally right to treat the word many as a special flavor of the word some. However for a weakener, a some isn't a problem. We don't actually care about how strong a weakener is, as long as it weakens. Many might only mean 10 percent of farmers, but it might also mean 90 percent. Critically however the idea that we are weakening here is that modern irrigation based cultures will likely collapse too. Even if only 15 percent of farmers currently use the technique in C, surely this could be expanded. C proves that a work-around exists. It doesn't matter how many use it now, since it could likely be expanded in the future, and the argument is about a future prediction.