so the plan with my "second-brain" at the moment is to simply enter notes/observations of any kind onto are.na , with virtually infinite storage for more unformed thoughts or ideas, from there, downloading the blocks to a "dump folder" using this plugin , then processing and sharpening the ideas through tagging and re-assessment, until finally storing in my main notes section.
are.na in this specific case is a funnel, a drag-and-drop place where ideas percolate, rather than where they stay. possibly this removes the need for the premium version, with channels being deleted and moved to obsidian once their purpose is fulfilled.
are.na is the field research; blocks are books, channels are series, obsidian the bookshelf.