I just discovered that Univeristy of Chicago law professor Randal C. Picker (pictured below) died unexpectedly at age 66 on August 15. (See here.) Although I never had the pleasure of befriending Professor Picker in person, our scholarly paths intersected in three ways: I visited the University of Chicago Law School and read his book (with Douglas G. Baird and Robert H. Gertner) on Game Theory and the Law in the early 2000s, and I was also among the first cohort of students to enroll in and complete his massive open online course (MOOC) on “Internet Giants: The Law and Economics of Media Platforms” in 2015. In addition to his intellectual honesty and scholarly productivity, what I especially admired about him (as his student) was his “show, don’t tell” teaching style.