An interesting study on perspective taking (Kulkarni, Cambre, Kotturi, Bernstein, & Klemmer, 2015) occurred in a massive open online course (MOOC) with global participation. In their online discussions, learners were encouraged to review lecture content by relating it to their local context. The researchers placed people into low- or high-diversity groups based on the spread of geographic regions among participants. Students in the most geographically diverse discussion groups saw the highest learning gains, presumably because they had the opportunity to consider more different perspectives than geographically uniform groups did