The discussion centers around a conversation between friends regarding the relevance of Newtonian physics in education, particularly in light of Einstein's theories. One participant expresses frustration over a biology major's assertion that Newtonian physics is obsolete, labeling it as a misunderstanding of the subject. The conversation highlights the necessity of foundational knowledge in physics for biology students, as they are required to take introductory physics courses. Participants debate the practical applications of both Newtonian and relativistic physics, noting that while Einstein's theories have advanced scientific understanding, Newtonian physics remains applicable in many everyday contexts. The dialogue also touches on the importance of respectful discourse among friends, suggesting that correcting misconceptions should be approached thoughtfully. Overall, the thread emphasizes the enduring significance of Newtonian physics in education and its foundational role in the development of modern physics.