Answer-first page
Review Debt: why does vocabulary progress stall?
Review Debt highlights delayed repetitions and retention risk.
Direct answer
Review Debt captures overdue and fragile words, then elevates them in the next review cycle.
How it works
Signals from missed or weak reviews create debt pressure for prioritized repetition.
Claim -> evidence
Debt behavior is linked to live review queue logic.
Who this is for
Learners who forget quickly despite high study volume.
Can you improve without reducing debt?
Usually not for long. Debt control is necessary for stable retention.