Brainy part starts at 17:50 and Behind the Redwood Curtain begins at 32:20.
Margaret talks about her adaptation of the Sweet November crocheted scarf and Catherine gives updates on her Meadowlark Shibori jacket and Sock Yarn Blanket.
Margaret talks about the once popular Right- and Left-brain theory and how current brain scientists see those terms as metaphors.  She mentions that knitters sometimes identify as Right- or Left-brained.
Catherine talks about Blue Ox Millworks in Eureka, CA which uses old fashioned methods to make replicas of pieces for residents and business.  It has expanded to have a school and veterans' services.
Catherine also suggests knitters have a number of cast-ons and bind-offs to choose from when they knit.