Remembering & understanding is not enough. How do we convert theory into action?
Note: Everything here is still under construction.
Both Seth Godin and Nassim Taleb recommend making bullets as you read and then converting these passages into ACTIONS. This is similar to David Allen's recommendation for converting tasks into actionable todos.
If you believe that action comes from mental models (which I do), then any reading that updates your mental models will, indirectly, affect decisions that you make.