This is a challenging environment for the lecture. In recent years, we have seen a welcome degree of ferment and experimentation in teaching, mostly using technology. As innovators make their cases for this or that new way, they often find it useful to push back against the old. And when something is needed to push back against, it's usually the lecture that comes into their sights. In an OpEd in the New York Times last fall, Eric Mazur, a Harvard physicist, was quoted as saying, "it's almost unethical to be lecturing." Unethical. That's pretty strong beer.