Though I usually only post episodes on Chumash or Hashkafa, I really enjoyed this Rav Chaim. It’s short, not too complicated, and IMO really gives an idea of the brilliance of Rav Chaim. The topic is when it’s permitted to abort a fetus/baby to save the life of the mother. If you're looking to save time, you can only listen to Part 2. But if not, I'd recommend listening to both.