Library
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🔭Observability: The Three Pillars
Build the mental model that turns three noisy data sources — metrics, logs, and traces — into a single evidence trail, then design an observability plan for a real service.
🌊Node.js Streams Introduction
Stop loading whole files into memory. Learn each Node.js stream type through runnable snippets and finish by building a streaming CSV-to-JSON transformer with proper backpressure and error handling.
⚖️Learn Utilitarianism Basics
Walk through utilitarianism from Bentham's calculus to Mill's rebuttal to rule utilitarianism, then use the framework to evaluate a real policy decision in writing.
📝Learn Tim Ferriss's Fear-Setting Exercise
Fill out all three fear-setting pages on one real decision you've been putting off, then walk away with a reusable template you can run whenever a hard call shows up again.
🎬Learn Three-Act Structure for Storytelling
Learn to spot act breaks, midpoints, and climaxes in films you already know — then outline your own short story on a one-page three-act beat sheet.
🪶Learn the Sonnet Form: Shakespearean and Petrarchan
Draft one Shakespearean and one Petrarchan sonnet on the same subject, scan meter confidently, and place your volta where the poem turns.
🐫Learn the Silk Road Trade Network
Trace how silk, paper, Buddhism, and plague moved across Eurasia — then draft a supply-chain map of one commodity or idea you care about as it would have travelled the network.
🎼Learn the Seven Modes of Music
Hear, play, and write in all seven modes — one mode per drop, each tied to a real song — then compose a 16-bar Dorian melody and recast it in Mixolydian.
📷Learn the Rule of Thirds in Photography
Turn the rule of thirds from a grid overlay into a shooting reflex. You'll drill the four power points, learn when off-center beats centered, and leave with a deliberate 10-photo set.
⭐Learn the North Star Metric: One Number That Captures Value
Pressure-test real company north stars against three hard criteria, then define and defend one for your own product. Leave with a metric your team can rally around — not another vanity dashboard.
📊Learn the Kano Model: Prioritizing Features by Customer Delight
Map your product's features onto Kano's five categories, then run a real survey with five users to surface the delighters your roadmap is missing.
🏛️Learn the Enlightenment and Its Key Thinkers
Trace the Enlightenment as a live argument between Locke, Hume, Rousseau, Voltaire, and Kant, then take your own side in a 300-word position paper grounded in their rival claims.
🏴☠️Learn the AARRR Pirate Metrics: A Startup Funnel That Scales
Walk through all five AARRR stages — Acquisition, Activation, Retention, Referral, Revenue — with real events mapped to each, then draft a working dashboard for your own product.
📊Learn SWOT Analysis Properly: Beyond the Four Boxes
Turn a lazy four-box SWOT into a rigorous, evidence-backed analysis, then pair strengths with opportunities in a TOWS matrix that produces four concrete strategic actions for any business you know.
🎯Learn SPIN Selling: Situation, Problem, Implication, Need-Payoff
Walk into your next discovery call with a scripted sequence of Situation, Problem, Implication, and Need-Payoff questions — and leave knowing exactly which ones unlocked the prospect's real pain.
🧠Learn Second-Order Thinking for Better Decisions
Stop making decisions that feel smart on Monday and wreck your Friday. You'll run real choices through a three-level 'and then what?' worksheet and leave with a decision journal template you'll actually open before the next big call.
🎲Learn Permutations vs Combinations Without Memorizing Formulas
Stop memorizing nPr and nCr — answer two questions (does order matter? can things repeat?) and the right formula falls out. Ends with you inventing and solving your own counting puzzle.
🔢Learn Modular Arithmetic Basics: Clock Math That Secures the Internet
Start with the clock on your wall and finish by encrypting a short message with a toy RSA example, using primes you pick yourself. You'll feel modular arithmetic as a living tool, not a programming operator.
📷Learn Leading Lines in Photography Composition
Train your eye to read the lines already in every scene — roads, fences, rivers, staircases — and turn them into intentional compositions. You'll finish with a cohesive five-image mini-series where every frame rides a different line type.
🏛️Learn Kant's Categorical Imperative
Turn Kant's densest idea into a tool you actually use. By the end, you'll write a maxim for a real decision, run it through the universalizability test, and journal what it reveals.
🥤Learn Jobs-to-be-Done: Why Customers 'Hire' Your Product
Learn how to run a real Jobs-to-be-Done interview and walk out with a defensible job statement — not another persona.
🧠Learn Implementation Intentions (If-Then Plans)
Turn vague goals into specific if-then plans that fire without willpower. You'll write one plan a day for two weeks and walk away with a personal library for your top three goals.
📊Learn Break-Even Analysis: When Does the Business Make Sense?
Classify the costs behind any small business, then calculate the exact unit count that turns losses into profit. Leave with a break-even chart built for your own idea, not a textbook example.
🤝Learn BATNA: Your Best Alternative in Any Negotiation
Walk into your next negotiation — salary, vendor, or lease — with your walk-away point written down, the other side's estimated, and the deal zone mapped out, so fear stops making the call.