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 SyllogismPart II. Scientific Method and Systems Thinking
4 modules
Scientific Method and Falsifiability · Decomposition: MECE, Issue Tree, Hypothesis Tree · Systems Thinking: Feedback loops, emergence, leverage pointsPart 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 updatingPart 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.