I appreciate your take-up of my comment about this group’s becoming medium-sized, hellycorke and Paul Rettey. Is a “small group” a scalar entity relative to the size of the overall MOOC? Or is there a small group limit that applies regardless of the size of the larger course of which it’s a part? It’ll be interesting to see here if there a size at which the small group becomes incoherent or too large. Thanks for triggering thought about this.