Frequently asked questions

A learning mode for becoming knowledgeable across many subjects rather than an expert in one. Each lesson is one complete overview from a different field. Fields you have had less of come first, the same field is not chosen twice in a row while others are available, the humanities, social sciences and sciences are kept in balance, and the important things everyone should know come early. You can exclude fields you do not want, or give some fields a larger share.

Universal Knowledge: a little about everything. One complete lesson: one self-contained lesson on each topic you chose. Lesson series: three to five or six to ten connected lessons per topic, in order. Comprehensive series: a full course of about ten to twenty-five lessons. Continuous exploration: one overview each time across the places or topics you chose. Mixed knowledge: Universal Knowledge mixed with the fields you want more of, in proportions you set. The pricing page shows which modes each plan includes.

Breadth means learning something new about many subjects; depth means several lessons on one subject. In Universal Knowledge and Mixed Knowledge you choose a breadth setting from very broad to very deep. It decides how often a lesson goes deeper into a topic you received recently instead of starting a new one: from one lesson in ten when very broad to nine in ten when very deep. For a single subject, choose a series instead.

Choose places, such as a continent, a region, a group of countries or individual countries, and a subject that can be studied place by place, such as political or economic history. Each lesson covers one country. The order alternates between parts of the region, your covered countries are tracked, and the same country is not sent twice for the same subject. Some subjects only fit some countries, for example the history of a monarchy; these are checked for each country before a lesson is planned.

Yes. Describe what you want to learn in your own words, for example “the political history of every country in Europe” or “twenty lessons about the history of China”. We match your request to the knowledge fields, subjects, places and periods we cover, and show you how we understood it with the ways it could be taught: one lesson, a short or full series, continuous exploration or a number of lessons you choose. Nothing is saved until you confirm or correct it. A request that is not educational is declined with the reason, and one that fits no field is not guessed at. When the AI interpreter is not switched on, requests are matched by name only, and we say so.

No. Every lesson you receive is recorded by its topic, place, period and perspective. A new lesson is not sent if it is the same topic for the same place, or if its title is too similar to one you already had in the same field and place. A topic is taught again only on purpose: one level higher, from a different perspective, for a different period, or as a refresher you asked for.

Each schedule has a rule for this, and you can change it at any time. By default lessons keep going: other place lenses of your subjects for the same places, then the next topics of your subjects and fields, then related fields your plan includes. You can instead go one level deeper into the same topics, continue with another country, another region or the next field, switch to Universal Knowledge, be asked what to learn next (lessons pause until you choose), or stop. Whatever you choose, we send you one email saying what comes next, with a link to change it.

Articles are researched and written by AI, using Anthropic's Claude models, inside a fixed pipeline. Sources come only from a registry of reliable publishers; every source is fetched and verified by our own system; the text may use only facts found in those sources; and each draft passes automated checks and an independent fact check before it can be sent. See our methodology.

Every paragraph cites numbered references with links, so you can check any claim yourself. Figures, dates, quotations and named studies must appear in the verified sources or the article fails its checks. No process is perfect, so if you spot an error, please tell us through the contact page.

They are written to be. Political parties, governments, ideologies and religions are described neutrally and with respect: describing a party or belief is never an endorsement, its claims are attributed to it, and where scholars disagree the main views are set out fairly. The independent fact check fails any draft that endorses or disparages a party, government, ideology or religion, presents one side of a genuine disagreement as settled, or presents a government's or party's own account as the neutral one.

Only publishers in our source registry, chosen by subject: encyclopedias, universities and university presses, statistics agencies, international organisations, central banks, health authorities, museums, archives and peer-reviewed publishers. Documents written by a government, parliament, party or religious institution about itself are treated as primary sources: they show what that body says, and are always set beside independent scholarship. Where borders, names or states have changed, lessons say so and name the states that existed at the time.

It is withheld and never delivered. The lesson is marked for more research instead of being filled with something we cannot support.

No. They are general education. They need stronger sources, carry an education-only notice, and legal articles name the jurisdiction they describe. For your own health or legal situation, consult a qualified professional.

You choose the depth: Quick Learning (about 3 to 5 minutes), Standard (6 to 10), Detailed (10 to 15), Comprehensive (15 to 25) or Academic Deep Dive (25 to 40). The reading time on each article is calculated from its real word count at 220 words per minute. Which depths you can choose depends on your plan.

English, Arabic, French, Spanish, German, Simplified Chinese, Hindi and Portuguese. Articles are verified in English and then translated; each translation is checked so the structure, citations and figures stay exactly the same.

No. Every article is an original explanation. Sources are cited and linked, not republished, and only short attributed quotations are used.

It depends on the learning mode. In a series, each topic you choose becomes a learning path whose lessons follow the topic's prerequisites from foundations upwards; where no lesson outline exists yet, one is planned for the topic and checked for lessons that repeat each other. In the one-lesson modes each topic or place is one complete overview. Lessons are never pitched below the level you set for the field, and each one suggests what to learn next.

Yes. Choose a little about everything, whole fields, or specific subjects, topics, lessons and places. If a topic is missing, you can propose a custom topic within a subject, which is checked to make sure it is a genuine educational topic in that subject, or describe what you want in your own words.

Yes. You can change the level for any field in your account, and future lessons follow the new level.

On the days and at the times you choose, in your own time zone, up to three times a day within your plan's limits. You can have several schedules, for example one for history at weekends and one for science on weekdays, depending on your plan.

Yes. Pause or resume any schedule from your account. Paused schedules do not count towards your weekly or daily article limits.

Every lesson email has an unsubscribe link that stops all lesson emails with one confirmation. You can resume them later from your account settings. Unsubscribing from emails does not cancel a paid subscription; cancel that from the billing portal in your account.

Your email address, your learning choices and schedules, and your reading and quiz progress, so we can build and deliver your curriculum. Payments are handled by Stripe. Our privacy policy lists everything in detail.

Yes. From your account settings you can download everything stored about you as a file, and delete your account with all its data.

Yes. You can turn on two-step sign-in with an authenticator app in your account settings.

See the pricing page for each plan's limits and, once announced, its price. Billing questions about upgrades, cancellation, failed payments and renewal reminders are answered there.