The only problem is I can think of many specific times in my life where another student asked a question, and I had the thought, "Fuck, that's a good question, I didn't even think of that," and I learn down a path that I had simply applied false assumptions to without realizing it.

Actually I think more effective is the 'new student and the student-who-recently-completed the course' because the old student remembers his misconceptions. Whereas the professor suffers from the curse of knowledge:

https://en.wikipedia.org/wiki/Curse_of_knowledge