Massive open online courses seem to be marching towards total world domination like some kind of educational singularity (at least in the case of Coursera). At the same time, there are still relatively few courses available, and each new added course is a small happening in the growing MOOC community.
Needless to say, this seems like a perfect opportunity for SI and CFAR to advance their goals via this new education medium. Some people seem to have already seen the potential and taken advantage of it:
One interesting trend that can be seen is companies offering MOOCs to increase the adoption of their tools/technologies. We have seem this with 10gen offering Mongo courses and to a lesser
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If you mean the less-fun-to-work-with part, it's fairly obvious. You have a good idea, but the smarter person A has already thought about it (and rejected it after having a better idea). You manage to make a useful contribution, and it is immediately generalized and improved upon by the smarter persons B and C. It's like playing a game where you have almost no control over the outcome. This problem seems related to competence and autonomy, which are two of the three basic needs involved in intrinsic motivation.
If you mean the issue of why fun is valued more than doing something that matters, it is less clear. My guess is that's because boredom is a more immediate and pressing concern than meaningless existence (where "something that matters" is a cure for meaningless existence, and "fun" is a cure for boredom). Smart people also seem to get bored more easily, so the need to get away from boredom is probably more important for them.