Don't know how to search and organize a directory structure. And they don't have to.

But it may also be that in an age where every conceivable user interface includes a search function, young people have never needed folders or directories for the tasks they do.

His advice to fellow educators: Get ready. “This is not gonna go away,” he says. “You’re not gonna go back to the way things were. You have to accept it. The sooner that you accept that things change, the better.”