Up til I took Andrew Ng’s online machine learning class last semester, I had two worries about the concept of online learning. First, I worried that the inability to ask questions would be a major problem. Second, I worried about the possibility of building up material. I could imagine learning a given thing online but the ability to sustain and build material over an entire semester seemed kind of unrealistic.
On the second point, I think I’m convinced. Andrew definitely taught us a real semester’s worth of stuff, and he built up a body of knowledge very well. I now communicate with my colleagues at work using the language he taught us, which is very cool.
On the first point about asking questions, however, I am even more convinced there’s a crucial problem.
I want to differentiate between two different kinds of questions to make my point. First, there’s the…
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