A flashcard can sound perfectly clear and still be wrong in a subtle way. The problem becomes harder to notice after the answer feels familiar.
- Keep the prompt short enough to review quickly.
- Keep the answer close to the source instead of over-summarizing.
- Attach the source so a doubtful card can be checked later.
The source is not decoration. It is the escape hatch when context is lost during summarization.
I would rather make a card slightly longer than make it impossible to audit.
I built NotebookBloom around this workflow: https://notebookbloom.com

Top comments (2)
Source links are strongest when they point to the supporting span, not just the document. Adding a short quoted context window or section anchor lets a learner audit the claim quickly and makes it much easier to revise a card when the source changes.
Yep, that's the missing layer. A document link gets you close, but a quoted span lets you verify the card immediately and see what changed later. Pairing that quote with an anchor to the exact spot is where I want to take the source field next.