At the end of our live recording of the final FRICTION episode, which you should listen to first, Stanford University business Professor Hayagreeva “Huggy” Rao took to the stage and shared some closing thoughts on podcast host Bob Sutton’s raucous conversation with Kim Scott about her new bestselling book “Radical Candor.” In scholarly, dulcet tones, Rao observes how we can’t be brutally honest with one another without the social lubricants of wonder and insight.