Anything that turns your expectations of yourself upside down and flip-flops the teacher into a student again is a salutary experience that will force you to reconsider how learning works.
I have recently had this experience of flipping from teacher to pupil when I took an online course run by a new program I have invested in. It was great to be the learner with the usual information asymmetry reversed. I learned heaps and the 21 step course was paced exactly right for maximum information uptake. I will write more about this new program once I have got my first payments through.