George Siemens tries to find the 'balance' between the future vision and 'practical reality'. But there is no such balance. If you have some model, some vision, some end goal, then for every decision you make, the question becomes, "does this move me closer to my end goal, or not?" When people say something is "impractical" they're trying to say two things at once: that the thing is right, and the thing is wrong. Well, which is it? Me, I think education based on coercion is impractical, because it results in a generation that cannot think for itself. How often we have seen this in the past, with what miserable results! Perhaps George Siemens has a different sense of practical. But I think it's an illusory 'practical'.