On this week’s Tech Nation, Moira speaks with Columbia professors Chris Wiggins and Matthew Jones about their book, “How Data Happened … A History from the Age of Reason to the Age of Algorithms.” Then it’s all about glucose at Rezolute – too much and too little. Nevan Charles Elam tells us about their work in treating the “diabetic eye condition”, DME, and a pediatric condition called congenital hyperinsulinism.