Train how you learn, then measure it
This site is your training system. The aim isn't to study harder. It's to swap low-yield habits (rereading, highlighting, cramming) for methods that research supports, and to check with data whether they're working for you.
Your path
1 · Intake & diagnostic
Tell the system about your habits and time, then take a 12-question test that also measures your calibration, meaning how well your confidence predicts your accuracy.
2 · First exercise
Read a short passage once, predict your score, then free-recall it. This sets your baseline for retention at days 1, 3, 7 and 30.
3 · Week 1 plan
Seven days of 30–60 minute sessions. For each activity you get what to do, how, why it works, and how to measure it.
Your profile
Answer honestly. Your answers adjust session length and flag your main obstacles.
Class practice
Multiple-choice practice built from your own lecture slides, notes and study guides. The picker spreads questions across every topic, brings back the ones you miss on a spaced schedule, never repeats a question in the same session, and shuffles the answer order each time so you can't memorize positions.
Diagnostic assessment
12 questions about how learning works. For each one, pick an answer and rate your confidence. The point isn't only your score. You'll also see whether your confidence was accurate. Answer first; explanations come after.
Exercise 1: Baseline free recall
This measures how much you keep from a single careful reading, which is what most people rely on. You'll retest the same material at days 1, 3, 7 and 30 to build your forgetting curve.
Week 1: Foundations and baseline
Review queue
Spaced repetition with adaptive intervals. Write each card as a question you must answer from memory, not a fact to reread. When you get a card right, its interval grows (1 → 3 → 7 → 16 → 35 days…). When you miss it, the interval resets to 1.
Add a card
All cards
Progress dashboard
Judge progress by these numbers, not by how a session felt. Fluent, easy sessions often produce less durable learning. Data is saved in this browser only; use Export to back it up or move it to another device.
Retention curve: Exercise 1
Calibration: predicted vs actual
Before each test, write down your predicted score. A gap near 0 means good calibration. A large positive gap means overconfidence, which is the usual "illusion of competence."
Log a session
Session log
Save on this laptop
Everything saves automatically in this browser as you go, including every answer, so closing the tab or shutting down loses nothing. It only disappears if you clear browsing data or switch browsers. For a real file on your disk as well, connect a backup file. Chrome and Edge will then keep it updated after every answer.
12-week mastery roadmap
Four phases. You move on when you meet the gate criteria, not just because the calendar says so. Missing a gate means repeating the weakest week, which is normal and expected.
Core principles and the evidence behind them
Each method is graded by how well the research supports it. Strong means replicated across many labs and real classrooms. Promising means it works under some conditions or the evidence is thinner. Myth means it's popular but unsupported or refuted.
Popular myths to drop
How learning actually works
Each topic opens with an analogy, then gives the technical version. Read one per day in Week 1, then close the page and explain it aloud before you move on.