That’s an unfortunate limitation: mass mediums give authors enormous reach!
Books often take months to read. But they almost never have an *authored* time dimension like that of films or plays. The days and weeks are rarely specified by the author the way minutes are by a filmmaker.
Likewise, MOOC materials often “unlock” over time, but the material doesn’t meaningfully interact with that timeline.
e.g. MOOGs like WoW choreograph players’ incentives and environments to invoke an ever-expanding horizon over many months. The design elements aren’t about raw hours: they’re more about how the feel of play sessions change, week to week.
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