Attention-grabbing headline aside, there's some good insight in this piece from Roger Schank.

No learning takes place without conversation.

And:

Every year I would ask my students on the first day of class at Yale and Northwestern if they could pass the tests they took last year, right now. No one ever thought they could. They studied. They listened. They memorized. And then they forgot. We don’t learn by reading nor do we learn by listening.