Fig. 21From: Understanding openness through (in)visible platform boundaries: a topological study on MOOCs as multiplexes of spaces and timesLegend: In both bows, one (bended) line illustrates data of ‘past’ achievements while the line back illustrate a path of ‘future’ steps. One bow presents statistics of personal paths, the other of the aggregate learning audience. The vertical line illustrates how data visualizations work to mirror learnersBack to article page