Ebbinghaus showed how memory decays quickly, then plateaus. By reviewing right before recall falters, you push the curve upward. Think of it like reinforcing a bridge before cracks spread, turning fragile recall into sturdy, reliable pathways.
Simply rereading seems comforting, but it hides illusions of competence. Forcing yourself to answer from memory produces errors that teach. Each attempt is like a rep at the gym, signaling the brain to allocate resources to pathways that prove repeatedly useful.
Start short to prevent forgetting, then stretch intervals as answers feel easier. When recall struggles, shorten again. Whether you use software algorithms or a calendar, responsive spacing personalizes learning, turning variability in performance into a smart schedule rather than a source of stress.