Beta · invite only

Courses about thinking that people actually finish

Long-form author-crafted courses written the way Kahneman and Taleb write popular science. No "completion rate" scoring, no video lectures behind a paywall. Just text, exercises, and time.

First course

Logic as Foundation of Thinking

A course on thinking clearly — from the classical syllogism to Gödel. Written for a mixed audience: engineers and humanists alike, at the popular-science level of Kahneman and Taleb.

Modules

17

Depth levels

2

Core and Deep

Language

Russian

Plan

Free

Payments disabled

What's inside

  • Part I. Classical Logic

    5 modules

    What is logic and why it matters · Judgments, Concepts, Terms · Categorical Syllogism
  • Part II. Scientific Method and Systems Thinking

    4 modules

    Scientific Method and Falsifiability · Decomposition: MECE, Issue Tree, Hypothesis Tree · Systems Thinking: Feedback loops, emergence, leverage points
  • Part III. Probability and Uncertainty

    4 modules

    Chaos Theory and Uncertainty: Three Types of Systems · Probabilistic Logic: Degrees of Confidence and Base Rate · Bayesian inference: formal belief updating
  • Part IV. The Limits of Rationality

    3 modules

    Fuzzy Logic: From Truth as «Yes/No» to Degrees of Membership · Signal and Noise: What in Data Matters and What Is Fluctuation · Cognitive Biases: Systematic Failures of Built-In Thinking

How we write

Each module is authored, fact-checked for correctness, and edited to a consistent voice. We openly acknowledge what we do not teach and where the formal apparatus ends.