"I thought of these facts this past weekend when I tried an online course for the first time. Because I wanted to brush up on my programming skills, I signed up for a Udacity computer science class on Friday. I was drawn in by the fact that there were no deadlines-I could put the class off if I got too busy for it. This concern was somewhat unwarranted, as I had finished half the class by Sunday evening. I realized that I had binged-on a class."