I will propose a 2x2 matrix to position interactive learning systems and argue that the 4th corner of that space is yet to be fully explored by our research efforts. By positioning recent work on that matrix, I hope to highlight a possible research direction and expose barriers to be overcome. In that effort, I will attempt a live demonstration of IFTT-PIN, a self-calibrating interface we developed that permits a user to control an interface using signals whose meaning are initially unknown.