As we move into a future where distance learning becomes the norm because almost nobody can afford a full-time, four-year education away from home, we need to be thinking about what will replace our college social lives as well as our classroom experiences. Reddit is one possibility. Another might be real-life study groups that form out of online discussion boards on specific topics. Maybe colleges will realize that socializing is a crucial part of the university experience, and build Reddit-like social spaces into their distance learning services.
Still another possibility, which I'm surprised nobody talks about more often, is that fewer people will go to college. Vocational schools might become more popular. People who want technical jobs might demonstrate their proficiency by going out and doing scientific or technical experiments, then posting them online. The next generation may prove that they never needed four years of breadth requirements to do professional work the first place.
Very interesting; good evidence of this already happening organically is Ureddit.com.
That's why I invested in all of them.