Sure, a few free, open, online courses have generated eye-popping registration numbers, upwards of 200,000 in some cases. However the average enrollment for MOOCs is more like 30,000 to 50,000. The real problem, though, is that more than 90% of these would-be learners don’t finish. Many don’t even start the courses for which they are registered. And a lot of those who finish don’t take another one. That means the number of people actually learning anything substantial is much less massive than the PR suggests.