The N-body problem is precisely one of its branches. In a multibody star system, gravity is an essential element.
If someone like Roth Dugan, who is very experienced in guiding graduate students, could teach him how to mentor students, it might be a quick fix to the trouble.
Simply put, Qiao Ze believed in professionalism.
Roth Dugan's response was joyful, "Ha, Qiao, really, I'm not at all surprised you're struggling with not being able to nurture outstanding students. The stuff you create is highly demanding on the students' talent for one thing, and on the other hand, as a mentor you need a wealth of experience to inspire and maintain their thinking and creative abilities.
Unfortunately, I don't think your past learning experience will be of any help to any student. Really, your presence only serves to crush them, making them feel that their future academic career is bleak and hopeless.