A mathematical formula is laid out as a flat expression. It is based on a series of steps. You are not bound by a time constraint, though each practice level does have its own time target (see Four practice levels, below).

Your progress toward Acmé (the convergence index) rests on twelve independent components. None of them blocks you: whatever you haven't completed yet simply counts as zero, without stopping the rest from moving forward.

About ten questions each. The passing threshold is set at 70% correct answers, but your score counts toward Acmé from the very first attempt, whether you pass or not — and you can keep answering afterward to move closer to 100%.

Four chapters of the book La formule P = E∞ to read — Welcome for L1, Teaching Foundations for L2, Treatise on Immutability for L3, The Two Creations for L4 — each worth 5% of Acmé. Each paragraph read earns 1 point, up to 100% (headings and subheadings don't count). Nothing to adjust by hand: progress is measured automatically as you read. And since the exponent is strict, a reading started but only half finished does not earn half the points — it's by going all the way through that the effort fully pays off.

Recognition, Differentiation, Integration, Stabilization. Each level is tied to a personal practice timer, with its own target duration: 1000, 4000, 6000, then 8000 minutes. Start a live session in the app, or, if you already practice, add your minutes of experience directly. As with the readings, a level barely begun counts for very little — consistency is what pays off.

A single choice among 17 diets, always accessible and changeable in the Adapt step. Only one option is active at a time — you can adjust it according to your preferences whenever you wish.

The time spent reading the books, poetry and blog, and taking part in discussions (chat, videoconference). Practice time does not count: it already has its own timers. The counter only runs while the page is visible and you are active; 25 hours in total give 100% of T. Weight: 16% of Acmé, with no exponent — every minute counts proportionally.

Together, these twelve components make up 100% of Acmé. You start at 0%, and every bit of progress, however small, moves the index forward.

The site remembers where you are without you having to do anything: each paragraph you read is noted as you go. You do not need to leave the site or sign in again for your reading to be tracked.

With an account, your progress is also saved on our servers. It applies to all your future sessions: you find it again each time you sign in, even from another device, and the Home page offers to take you back to where you left off.

Without an account, your progress stays only in the browser of the device you are using: it applies to your next visits on that device, as long as you do not clear the browser’s data. In addition, the exact paragraph where you stopped in Welcome is kept on the device, not on the account. A direct link to a paragraph always takes precedence over this memory.