Rainer Burmeister said:
If I would encounter an action reminder like “Think about X” on my NA list then I still wouldn’t exactly know what I am supposed to do in that moment. “Think about X” would be too vague for me.
If you wouldn't know how to do this particular action, then of course you shouldn't formulate it this way.
NAs that will help an individual achieve a successful outcome are highly
individual. They are specific to an individual. They are specific to a goal. My point in this thread is that GTD should not make rules about what
verbs should or should not to be used in formulating NAs. Each individual must evaluate what specific NAs successfully achieve her own goals.
If I never choose "Think" as the verb for a NA, it will be because "think" is not the next action to achieve any of my desired outcomes. I will not make an a priori rule outlawing all thinking.
My guideline about NAs is that I should know how to do them when I see them in a list. And they should help to successfully achieve my desired outcome. The verb can vary with the situation.
Rainer Burmeister said:
Visualization isn’t a productive mental action in my world because there isn’t a product produced in visualization.
Sure there is. Neural networks in your brain are activated and then changed; changes become more or less permanent if they are reinforced. Visualization is just another learning technique that is useful in some ways. In some situations, it's infinitely more effective than making a "mind map."
I don't understand what makes something a product that is produced in your world. A mind map is productive because you can see writing on a piece of paper when you are done? Changes in the brain can be seen with appropriate technology -- fMRI, PET, EEG. Behavioral outcomes of those neural networks can also be measured. In my world, we see and measure these changes all day long. The knowledge and skills which result from learning are real. And they are valuable assets for "knowledge workers."
In my example of visualization, it was an
action that took time and effort and helped to achieve an important
outcome goal. I fail to see how that was not "productive." It was mental practice. Physical practice was on my list of things to do as well. When I practiced physically, muscles moved. When I practiced mentally, the same brain areas that control those muscles were activated, and the same muscle fibers were activated as well, but below the threshold that will trigger actual movement.
Visualization helped me achieve something I could not with physical practice alone: simulation of the performance environment. Learning is highly specific. If I practice alone in a relaxed environment, I will not be prepared to perform publicly in a high-pressure environment. It's useless to practice many hours physically, only to fall apart during the high-pressure performance I spent 1,000 hours practicing for.
Mind maps would have been useless.
If I want to change my brain by increasing my knowledge and skill, I do the actions that will achieve that outcome (and track them with GTD). If I wanted to lower my cholesterol, I would similarly do the actions to achieve that outcome, and track them with GTD. Both outcomes are hard to see directly without the technology, but nonetheless there are actions I can do to achieve them.
GTD easily handles any individual's desired successful outcomes (visible or not) that can be achieved by action (physical or mental).