@chris Hi Chris. Thinking about the kinds of organisations that scale is useful. There's a continuing tension in organisations as they scale and mature between centralisation that enables continuity, stability and maturity (civic buildings, rule of law, universities, libraries) and devolution that enables creativity, diversity and autonomy. That tension is being played out in MOOCs as they scale. Perhaps we should be looking at scalable processes rather than scalable systems - e.g. a dialectical process that enables growing inter-dependence and mutual understanding alongside diversity and creativity.