Another thing you could do (which I’m considering):
Currently, when I want to start an entirely new top-level topic, I make a new card in my highest-address deck. This means that highest deck is full of top-level ideas which mostly have little or no development.
Instead, one could bias toward starting new decks for new top-level ideas. You probably don’t want to do this every time, but, it means you have a nice new deck with no distractions which you can carry around on its own. And so long as you are carrying around your latest new deck, you can add new top-level cards to it if you need to start a new topic on the go.
You don’t get access to all your older ideas, but if we compare this to carrying around a notebook, it compares favorably.
EDIT: I’ve tried this now; I think it’s quite a good solution.
Another thing you could do (which I’m considering):
Currently, when I want to start an entirely new top-level topic, I make a new card in my highest-address deck. This means that highest deck is full of top-level ideas which mostly have little or no development.
Instead, one could bias toward starting new decks for new top-level ideas. You probably don’t want to do this every time, but, it means you have a nice new deck with no distractions which you can carry around on its own. And so long as you are carrying around your latest new deck, you can add new top-level cards to it if you need to start a new topic on the go.
You don’t get access to all your older ideas, but if we compare this to carrying around a notebook, it compares favorably.
EDIT: I’ve tried this now; I think it’s quite a good solution.