The discussion centers on the concept of learning during sleep, particularly through methods like listening to tapes. It highlights recent scientific findings indicating that sleep plays a crucial role in consolidating skills learned during the day. Research shows that individuals who experience a full night's sleep after learning can improve their skills significantly, while those who sleep less do not see the same benefits. The importance of deep sleep is emphasized, especially for sports-related skills, while sleep does not enhance rote memorization. The conversation also touches on the idea of subconscious learning during hypnosis, suggesting that while hypnosis may increase suggestibility, it does not guarantee effective learning. Overall, the consensus leans towards the idea that while sleep is vital for learning, the notion of actively learning new information during sleep remains questionable, with a preference for studying while awake for better comprehension.