A universal model for mastering any skill — language, coding, music, fitness, public speaking — by balancing practice, growth, and retention.
The Richmack Formula models how you grow through repetition, how fast you forget without review, and how re-learning compounds mastery.
n = ln(G) / (m × ln(1 + p))
A rep is one focused, measurable block of effort that strengthens your skill — like a workout set for your mind.
If you do three per day (e.g. read + write + speak), m = 3.
If it takes 7 sessions to double your skill (N = 7) and you do 3 sessions/day, then each rep improves you by about 10 %.
To become 100× better (G = 100):
n = ln(100)/(3 × ln(1.104)) ≈ 15.5 days.
Your memory naturally decays by half every H days (your half-life). After H days off → 50% remains, after 2H → 25%, 3H → 12.5%. Refreshers extend that half-life, letting you retain knowledge longer.
Each time you finish a training cycle, take a rest near your half-life, and then repeat the cycle, your mastery compounds. You don’t start from zero—you start from a compressed, more efficient memory base. This can yield total improvement of several thousand percent across cycles.