This is nothing to do with figuring things out, which implies reasoning and intuition. This is simply a matter of the easiest way to remember things. If you link your Projects and your NAs, your computer will remember those links with perfect accuracy and no extra effort. If you use your memory, it'll be less accurate. If you write extra-long NAs with clues built into them, it'll be more effort.Sorry, but I disagree completely. There is no tool that will do the “extra work” of figuring out what your work actually is, just as there is no actual calculus for choosing a tool. I have used extensively some of the most popular and powerful tools available for Apple devices, and I have tried most of the others. I use Things, and I appreciate its amenities while not using all of them. However, the flexibility and usefulness of text is far greater than the most sophisticated GTD database I can imagine. (I will say that the adoption of Markdown within Things is a great feature.) But whatever works for you.