My many dreams have evaporated by the morning, but I have a vague recollection of one of them. I dreamt that I had a bunch of wonderful students. They reminded me of my workshop in space architecture, which I held at MIT in the late Eighties. All they needed from me was a little bit of guidance. The rest was in their capable hands. By and by, they developed a new concept of learning. “Passive learning,“ they called it. It was a bit like learning by doing, but it was not exactly the same. It was unhurried and it eschewed clear objectives. Living in space was to be mastered by living through the experience, as it were. And so they read all sorts of things and talked to many different experts at the Institute and beyond. I helped as best I could with the contacts. I remember being quite enthralled by passive learning and its results. As the workshop progressed, space architecture came alive. Touching on science fiction at its best, it went well beyond engineering. Unfortunately, that is all I remember of the dream. I can only hope that it will come back sooner or later, as dreams sometimes do. Passive learning at its best, indeed.