This code is the same as the PMI tool in both the CoRT programme and the DATT course. We are inclined to make rapid judgements: "I like this" and "I don"t like this." We then use our thinking to back up those immediate judgements. Code 2/1 insists on a systematic scan. First there are the "plus" or positive points. The thinker makes an effort to look in this direction even if he or she does not like the idea. Next comes the effort to look in the "minus" or negative direction. What are the faults? What are the problems? What might go wrong? Even if you are enthusiastic about the idea you still make an honest effort to see the difficulties. Often you get a big surprise. Finally you look in the "interesting " direction. These are points that are neither good nor bad. They are interesting. They are worth noting. They are worth speculating about. Code 2/1 is a request to carry out the complete scan and to report back on what has been perceived. Research shows over and over again that such a formal scan often reserves judgements and choices. It requires a considerable discipline and mental effort to carry out a systematic scan when you already know that you like, or dislike, the idea. What is extraordinary about these attention-directing tools is that they are so very simple but can be very powerful. That is because attention normally "flows" from one point of interest to another. The mind is reluctant to perform a systematic scan-unless asked to do so.