The Story of the Mathematics of Machine Learning Book

Writing online about mathematics and machine learning started as a creative hobby for me, a way to recharge my batteries after cofounding a failed startup that burned my savings and two years of my life.

I have always had a passion for teaching. Even as an undergrad, I often found myself explaining the material to my coursemates. In my third year, I became a teaching assistant, teaching probability theory to students only one year below me. Later, as a researcher in a computational biology group, I used to give spontaneous lectures on (guess what) the mathematics of machine learning, sometimes even helping my grad student colleagues prepare for calculus and linear algebra exams.

The conventional advice is “don’t follow your dreams, do whatever makes you the most money.” But I’m not a conventional person. I walk my path, not others’. So, in 2021, I started a project with no promise of money, only a promise of personal fulfillment. A dream.

It turned out to be the most rewarding decision I have ever made.

Before you read on: we are running a fundraising campaign in December with a 30% forever discount for new paid subscribers. We are aiming for 1000 members, and we are halfway with 550 currently.

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Every new paid subscription will contribute to the following milestones:

• 600 paid subscribers → Exclusive mini-course (Q2 2026)

  The topic of the first mini-course will be “Mathematics of Machine Learning”.

• 700 paid subscribers → Another exclusive mini-course (Q4 2026)

  A second mini-course with a different expert/angle. The idea is to slowly build an extensive “course library” for members.

• 800 paid subscribers → Dedicated Manim animator

  We’ll bring on a Manimator so more articles come with clean, high-quality animations that make the concepts instantly click.

• 1,000 paid subscribers → Full-time writer

  This is the big one. With a full-time writer on the team, we can ship more deep dives, more courses, and more structured learning tracks throughout 2026.

If you upgrade now, you’re not just supporting what exists today; you’re helping shape what we can build next year.

Back in early 2021, most of the machine learning community was active on Twitter, and I enjoyed spending time on the platform, feeling the pulse of the tech world. So, it was a good place to start writing online. (We are living a different life now. COVID, the war in Ukraine, and Trump: Season ...