The discussion centers on the strategic choices students face when selecting courses in relation to graduate school applications. Participants debate whether it's more beneficial to take easier courses for higher grades or to challenge themselves with difficult courses that may better prepare them for advanced studies. It is noted that many applicants to competitive graduate programs often have high grades in tough subjects, suggesting that taking easier courses could be detrimental to one's application. Some argue that the focus should be on learning rather than grades, but the consensus leans towards the idea that admissions committees prioritize GPA and course rigor. There is also mention of the potential drawbacks of self-studying difficult material without the structured support of a course. Overall, the conversation highlights the tension between academic performance and genuine learning in the context of graduate school admissions.