Library

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✍️Learn AI-Assisted Technical Writing

Learn which parts of writing AI is great at (outline, gap-finding, copyedit) and which it quietly destroys (voice, judgment, taste), then ship a personal protocol that names exactly which steps you delegate and which you guard.

Applied~2-week path · 5-8 min/day

🔍Learn AI-Assisted Research Workflows

Learn a four-stage research loop — scope, search, synthesize, verify — that works with any AI tool, then build a personal checklist that catches the failure modes that bite you most often.

Applied~2-week path · 5-8 min/day

🔌Understand the Model Context Protocol (MCP)

Crack open the Model Context Protocol — the host/client/server shape, the three primitives, and the integration math that makes it worth standardizing. By the end you can sketch the MCP server you'd build to expose your own product to AI clients.

Applied~2-week path · 5-8 min/day

📈Understand Overfitting and How to Spot It

Stop calling overfitting a vibe — diagnose it from a learning curve in seconds, then prove you understand the cure by overfitting a model on purpose and fixing it three different ways.

Foundations~2-week path · 5-8 min/day

🧠Understand Attention Mechanisms in Neural Networks

Stop bouncing off matrix algebra and start picturing what query, key, and value actually do — by the end you'll trace attention through a five-token sentence and predict which heads attend where before opening the paper.

Applied~2-week path · 5-8 min/day

🤝Master AI Pair-Programming Workflows

Move past the 'accept all' or 'reject all' trap with a tool-agnostic protocol — frame, narrow, verify, refactor — that works whether you're driving Cursor today or whatever assistant ships next year. By the end, you'll have a one-page playbook for AI pair-programming on your own project.

Applied~2-week path · 5-8 min/day

🤖Learn the Planner-Executor Agent Pattern

Stop watching ReAct loops drift through twenty tool calls to do a five-step job. Build the intuition for when an explicit plan beats step-by-step reaction, then sketch the planner and executor for one of your own multi-step workflows.

Advanced~2-week path · 5-8 min/day

🔭Understand the Copernican Revolution and Why It Mattered

Trace the slow, 150-year overthrow of Earth-centered astronomy — from Copernicus's quiet manuscript through Kepler's ellipses, Galileo's telescope, and Newton's gravity — well enough to tell it as one connected story.

Foundations~2-week path · 5-8 min/day

😴Understand Sleep Pressure and Adenosine

Untangle the two-process model so adenosine, circadian timing, caffeine, and naps stop feeling like separate trivia — and you can sketch your own sleep-pressure curve for any day, normal or wrecked.

Applied~2-week path · 5-8 min/day

Understand Darwin's Voyage on the Beagle

Walk the Beagle's full five-year route — not just the famous finch finale — and learn what Darwin actually saw, where, and when. By the end you'll write a diary entry as Darwin on the day he first stepped onto the Galapagos.

Foundations~2-week path · 5-8 min/day

🌳Trees and Binary Search Trees

Stop confusing BFS with DFS, in-order with pre-order, and balanced with not-quite. Build the tree intuition that lets you draw any node-and-edge problem on a whiteboard and solve five classic interview questions without freezing.

Foundations~2-week path · 5-8 min/day

🔴TDD Workflow Explained

Stop hearing 'red-green-refactor' as a slogan and start feeling it as a five-minute rhythm — drill ten kata cycles, connect TDD to design and coverage, then build a small feature strictly test-first.

Foundations~2-week path · 5-8 min/day

👃Portuguese Nasal Vowels Pronunciation

Train your mouth and ear on Portuguese nasal vowels through 14 days of short mimicry drills, finishing with a recorded reading of a nasal-dense paragraph you can compare to a native speaker.

Foundations~2-week path · 5-8 min/day

🔗Linked Lists from Scratch

Stop memorizing linked-list operations as recipes. Build the pointer intuition that lets you draw any node-and-arrow problem on a whiteboard and solve five classic interview questions without losing your place mid-traversal.

Foundations~2-week path · 5-8 min/day

🧠Learn What Happens During REM Sleep

See exactly what your brain and body do during REM — the dreaming stage your sleep apps gloss over — and walk away able to explain in one paragraph why losing it makes you a worse learner.

Foundations~2-week path · 5-8 min/day

🪞Italian Reflexive Verbs and Pronouns

Stop tripping over 'si' and the essere-agreement rule. Build the reflexive instinct — the action turned on the doer, the past participle matching the body doing it — and prove it by writing your morning routine with eight reflexive verbs across present and past.

Foundations~2-week path · 5-8 min/day

🇮🇹Italian Congiuntivo Triggers

Stop drowning in congiuntivo rules. Train your ear on the signal Italian uses to mark uncertainty, opinion, and emotion, then prove it by writing opinion sentences with penso che, credo che, and spero che that don't sound like a textbook.

Advanced~2-week path · 5-8 min/day

🎁Italian Combined Pronouns (me lo, te li, glielo)

Stop hesitating mid-sentence when two Italian pronouns collide. Lock the small closed set of transformations — me lo, te li, glielo — into recall, and prove it by rewriting a gift-giving dialogue with at least five combined pronouns flowing naturally.

Applied~2-week path · 5-8 min/day

🗣️German Umlauts (ä ö ü) Pronunciation

Stop sounding unmistakably foreign in German. Train your mouth to make ä, ö, and ü the way native speakers actually do — and prove it by recording a tongue twister.

Foundations~2-week path · 5-8 min/day

🇫🇷French Conditional and Si Clauses

Stop freezing on which tense follows 'si'. Lock in the three si-clause patterns — real conditions, unreal present, and unreal past — and prove it by writing your own 'what if my life were different' sentences across all three.

Applied~2-week path · 5-8 min/day

🇳🇱Dutch Separable Verbs

Stop treating Dutch separable verbs as broken German ones. Learn what 'op', 'aan', 'uit', and 'in' actually do to a verb, where the prefix lands in a main clause, how the past participle behaves (opgestaan, not geopstaan), and finish by writing a daily-routine paragraph using five separable verbs without hesitation.

Applied~2-week path · 5-8 min/day

🇳🇱Dutch De vs Het Gender

Stop memorizing Dutch noun genders one flashcard at a time — learn the small closed set of pattern rules (diminutives, languages, metals, two-syllable verb stems) that predict 'het' for ~90% of cases, and sort 30 unfamiliar nouns correctly without ever having seen them before.

Foundations~2-week path · 5-8 min/day

🗄️Database Normalization Basics

Stop memorizing normal forms abstractly and start using them as design tools — see exactly why redundancy creates update anomalies, walk a messy table through 1NF, 2NF, and 3NF with real before/after schemas, then design a production-ready schema and defend every table you create.

Foundations~2-week path · 5-8 min/day

Async/Await Patterns

Stop sprinkling await everywhere and writing async code that's slower than the sync version. Build the intuition to spot accidentally-sequential awaits, handle errors and cancelation cleanly, and ship a concurrent fetcher with retries you actually trust.

Applied~2-week path · 5-8 min/day