What I saw on the web on 2022.3.28

1. Pedagogy: How to cure students of the "law of universal linearity"?
   by Peter LeFanu Lumsdaine et al
   https://math.stackexchange.com/questions/630339/pedagogy-how-to-cure-students-of-the-law-of-universal-linearity
   "failing them repeatedly" doesn't seem like a compassionate response
   via reddit