Prompted by John Cooper's interesting comment, I found and read an extremely long and fascinating Wikipedia entry on Massive Open On-line Courses [MOOCs]. Wow. Who knew? [Everybody but me, I suspect.] This provokes a flood of thoughts along many different dimensions. Since I have absolutely no experience whatsoever of this very new phenomenon, I am, I suppose, just the right person to speculate about its significance, right?
Perhaps I will try my hand at exploring some of the implications, without any effort to come to conclusions.