Left, Dave hangs out during the interview. Right, Dave inside The Portal (life-size Skype) talking with a physician and a mathematician in Afghanistan.  Dave got to talk with the two men about caving, vertical caving gear, education, and a host of other subjects.  Photos by Blue Leaf von Muller.

Dave talks with Deborah Thornton of Imagination Celebration / What If Festival while harnessing up for the early-morning interview with Fox21.  Photo by Blue Leaf von Muller.