System in itself is not super productive. It can work with implied goals (usually if you have a lot of experience).
The most resilient structure is a web of interconnected goals: even if you fail at some, the web will not break. The more interconnected your goals are, the higher your chances of success.
• <https://web.archive.org/web/20210811125743/https://www.scott...>
Alternatively, as a ~5-minute video:
• <https://www.youtube.com/watch?v=fwcKTYvupJw>