Ohm makes you do the parts
that actually work.
Reading closely, pulling ideas back from memory, explaining them in your own words. The research on durable learning keeps landing on the same effortful handful of things. Ohm's job is to scaffold that effort and schedule it well, not to do the thinking for you.
A real syllabus, not a list of links.
Tell Ohm a subject and how deep you want to go. It writes you a course.
Ohm first surfaces the prerequisites worth shoring up, and you confirm which ones are actually rusty, then breaks the subject into phases of a few weeks each. Every phase holds a handful of concrete objectives. You work through them one phase at a time; the next one stays locked until you've earned it. How ambitious you set the pace decides how many objectives a phase carries and how far each lesson goes.
Lessons built to be read, not skimmed.
Every objective gets its own lesson: long-form, concrete first, and shaped the way the worked-example research says a lesson should be.
Worked examples you finish
The examples are laid out step by step, and the last step is left for you to complete instead of just watching it happen.
Figures that render
Notation, equations, diagrams, code: drawn from the real source, not dropped in as stock images.
A named misconception
The wrong mental model most people land on, stated plainly, then taken apart and corrected.
A self-check
A stop-and-think prompt at the end. Not graded, just a beat that makes you explain the idea to yourself before moving on.
Spaced retrieval on your real forgetting curve.
Ohm schedules reviews with FSRS-6, the same algorithm modern Anki uses, to catch each idea right as you're about to lose it.
There's no fixed one-day, seven-day ladder. Every item tracks how durable your memory of it has become and comes back when your predicted recall slips toward 85 percent, the point where pulling it up is hardest and the practice is worth the most. Miss one and it returns minutes later, again and again until it sticks. That isn't a special rule; it falls straight out of the math.
You produce the answer. Every time.
No multiple choice. Recognizing the right option is not the same as knowing the thing, so Ohm never settles for it.
Flashcards
Fast recall for the building blocks. You rate yourself again, hard, good, or easy, and the next showing moves to match.
Free response
You write the answer in your own words. A grader reads it against a short rubric and tells you which part wobbled. Some prompts hunt a specific misconception; others make you tie two ideas together at once.
Teach-back
Explain a whole phase's idea to a beginner. Ohm reads it, asks exactly two follow-ups aimed at the weakest seams of your explanation, then grades the conversation. Explain it well and every related item in the phase gets a lift.
Mastery you can't cram.
Ohm doesn't ask whether you got it right just now. It asks whether you'll still have it next week.
Each item is scored against a one-week horizon: durability, not a lucky guess in the moment. An objective's score leans hard on your weakest part, so you can't coast on the bits you already knew. A phase opens the next one only once every objective clears the bar. And nothing stays mastered for free, if your recall decays, the item comes back around.
A tutor that asks you the questions.
Open the chat on any lesson, card, or idea you're wrestling with. It knows where you are in the plan, cites the lesson back to you, and asks the next question instead of handing over the answer. It's there the moment you want it, and you never need it to keep moving.
This is more work than watching a video.
That's the whole point. Pick a subject and feel the difference.