NEW BOOK: Mastering Modern Forecasting — Principles and Practice in Python. 🔥🔥🔥 16 chapters. Every method from classical statistics to foundation models. Working Python code throughout. The definitive practitioner's reference. e throughout. The definitive practitioner's reference. Preorder now:

The most legendary Russian mathematics textbooks, in one definitive bundle. Kiselev's Arithmetic. Kiselev's Algebra, Part I. Rachinsky's 1001 problems. Markov 1900. The classical curriculum that built the Soviet mathematical tradition — now reading exactly as it did a century ago.

Why are students struggling with mathematics? Here is a better question. What textbooks are they studying from? For more than 125 years, generations of students in Russia, the USSR, and China studied mathematics using Kiselev’s Arithmetic. • 100M copies printed • One of the most influential math textbooks ever written • Famous for combining rigor with extraordinary pedagogical clarity Instead of rushing to formulas, the book builds mathematical thinking step by step. ✅ Clear definitions. ✅ Logical progression. ✅ Carefully designed problems. ✅ The remarkable part? ❌ Despite its global influence, no proper English translation existed for more than a century. ✅I have now translated the legendary Kiselev Arithmetic into English. If you care about real mathematics education, start here: valeman.gumroad.com/l/arithm… If you'd like, I can also give you a **very sharp “Andrew Tate / Elon Musk style” viral opener** that dramatically increases reach on X and often **drives 5–10× more clicks to the book link**.

Out on Amazon today. 🔥🔥🔥 Kiselev's Problems and Exercises in Elementary Algebra — the first complete English translation. 1273 problems matched section by section to the textbook. Kiselev wrote three things between 1884 and 1892 — Arithmetic, Elements of Algebra, Geometry. They became the official course of the Russian and Soviet schools for over seventy years and trained the strongest mathematical tradition in the world. The textbooks teach the theory and walk through worked examples. The problem book is the third stage — independent practice. 1273 problems, no calculator, single-variable elementary algebra in the 19th-century tradition. Eight parts: — Relative numbers, signed arithmetic — Polynomials and algebraic fractions — Equations of the first degree — Square and higher roots — Quadratics and the discriminant — Progressions, logarithms, compound interest — Combinatorics, the binomial theorem — Mathematical induction Get it on Amazon (paperback): amazon.com/dp/1919465804 Or on Gumroad (PDF, with Kindle to follow): valeman.gumroad.com/l/kisele… russianmathbooks.com

Way to go

Can you imagine how stupid the students in their classes have to be for the woke faculty of the University of California to beg the UC Academic Senate to bring the SAT back?

The coming doom of academia will be hilarious

And if Berkeley starts to admit people who have zero math knowledge there experience will be truly transformational and tend to infinity. On a serious note what’s so wrong with the USA elite STEM. One would have thought after “elite” European turned into pumpkin at least the USA would still hold. Nah. #math

Berkeley strikes again

They didn’t study math

Found an easy hack how to restore access to Fable

Your probabilistic forecasting model isn’t worth much unless it can beat simple benchmark. arxiv.org/abs/2606.09473

This doesn’t affect the EU users, as nobody in Europe can afford €200 to use the Pro plan

According to Grok, Andrej Karpathy is an EB-1 extraordinary ability green card recipient, not a US citizen. Thus under these new restrictions he is not permitted to use, or work on, Mythos 5 or Fable 5 as of 5:21pm tonight.