horizons of focus

1. Should I take a bottom-up approach? or Top-down? 2. Why did David allen set the standard for the project within one year? If the project is going to last more than a year, like getting a certification, does it have to go into the goals? 3. Does 'Horizon of focus' needs brainstorming process...

Hello, I have a question about how to deal with the horizons of focus. David Allen suggests working from the bottom (Ground) up (Horizon 5). Do I interpret it correctly, that this approach refers exclusively to „Capture“? Capture: When I collect things, I work from the bottom up. First I...