Until now, I have done as many lessons as I could find time for. Maybe on a Sunday there is time to do 40 or even many more lessons. The problem is that then suddenly one gets a huge pile of reviews on specific days in future. If unlucky, more than one of these piles may come on the same busy work day.

Therefore I have taken a short break from lessons to let the reviews come under control.

The question is, how many lessons to do per day so that, even in a few tens of levels time, the number of reviews to do per day remains steady and manageable.

I believe that, if every review is answered correctly, each lesson has 8 reviews in total to burn. Therefore, every lesson adds 8 reviews to the total workload.

This means that, once enough time is spent to reach a steady state, one will be doing 8 times as many reviews as lessons each day.

Therefore, if I am comfortable with 80 reviews per day, I should rigidly do 10 lessons per day. Any more than that on a given day, and horrible pain will surely hit on a future day when the reviews crop up.

There are two assumptions in this argument. One is that all reviews are answered correctly. Letâs live with that for now and assume a low rate of incorrect answers.

The other assumption is that lessons go on forever, while in fact they stop after level 60.

My question: is the timescale of building up to the steady state long or short compared to the total 60 levels? In other words, will I quickly hit 80 reviews per day, or will I never get close? My guess is that, since the earliest burn time is 4 months, the steady state of 8 reviews per lesson will be reached mid way or late through the levels.

There would be a very useful script to be made here to caculate the number of reviews expected by future date for a given steady lesson rate.

Plus, any corrections to the formula appreciated!