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27 reading paths, 235 articles. Each path starts from nothing and builds. Read a whole subject in order instead of picking articles off a list and hoping they connect.
Start Investing From Zero
Everything you need before you buy anything, in the order it actually matters: cash buffer first, compounding second, and the cheapest possible fund third.
- What Is an Emergency Fund and How Big Should Yours Be
- Compound Interest Is the Whole Game
- What Is an Index Fund, Really
10 articles · about 79 min in total
Read a Company Like an Analyst
A P/E ratio is a starting question, not an answer. This runs from the ratios everyone quotes down to the cash flows they are supposed to stand for.
- The P/E Ratio, Explained: What It Tells You and What It Hides
- Market Cap vs Enterprise Value: Which Number Actually Matters
- Free Cash Flow: Not a GAAP Number, So Compute It Yourself
9 articles · about 76 min in total
The AI Capex Trade
Hundreds of billions are being spent on chips, buildings and power on the bet that demand shows up. Here is where the money goes, who books it, and what breaks if the bet is wrong.
- Is This an AI Bubble? A Computer Engineer Reads the Financials
- AI Chip Stocks in 2026: The Bull Case and the Bear Case Are Both Right
- Nvidia Customer Concentration: The Chart That Should Keep You Up at Night
15 articles · about 164 min in total
Retirement Accounts, Decoded
Six account types, one question each: who gets taxed, and when. Start with the free money and work down to the accounts almost nobody uses correctly.
- The 401(k) Match Is Free Money. Don't Leave It on the Table
- Roth 401(k) vs Traditional 401(k): How to Choose
- Roth vs Traditional IRA: Which One Actually Wins
8 articles · about 71 min in total
Making the Money Last
Saving is the easy half. Spending a portfolio down without running out is a different problem, and the order your returns arrive in matters more than their average.
- The 4% Rule's Own Author Now Says 4.7%. Morningstar Says 3.9%.
- Sequence of Returns Risk: Why Order Beats Average
- What Are Bonds, Really, and How Do They Work
6 articles · about 53 min in total
Housing, Rates, and Rent vs Buy
Mortgage rates do not follow the Fed, a house is a leveraged illiquid asset you also live in, and the supply shortage is structural. Work out what that means for you.
- How a Mortgage Actually Works (Amortization, Explained)
- The Different Types of FHA Loans Explained
- Why Mortgage Rates Don't Follow the Fed
10 articles · about 85 min in total
Who Actually Makes Money in Real Estate
Every role in the business, with real income figures attached, then the two structures that let you own property without any of the jobs.
- How Much Landlords Actually Make
- What Is Cap Rate in Real Estate, and What Counts as Good
- How Much You Actually Make Flipping a House
9 articles · about 61 min in total
When Markets Break
Four panics in chronological order, then the indicators people reach for afterward. The mechanics rhyme even when the decade does not.
- The Panic of 1907: How One Man’s Library Saved the Banks
- Black Tuesday 1929: The Day the Roaring Twenties Ended
- Black Monday 1987: The Day Stocks Fell 22% for No Obvious Reason
9 articles · about 56 min in total
Leverage and the Ways to Lose
Margin, shorting and options all do the same thing: they turn a small move into a large one, in both directions. Understand the mechanism before the marketing.
- Buying on Margin: Why the Call Comes at 28%, Not 50%
- Short Selling Explained: Being Right Early Still Loses
- Calls vs Puts: How Options Actually Work
8 articles · about 66 min in total
The Tax Bill on Your Investments
The return you keep is the only one that counts. Dividends, gains, harvested losses and equity comp each get taxed on different rules, and a few of them are avoidable.
- Gross Income vs Net Income: Why the Gap Is Wider Than You Think
- How Dividends Are Taxed, and Why a Dividend Is Not Free Money
- There Is a 0% Capital Gains Bracket. The Numbers to Watch Are the Frozen Ones.
7 articles · about 56 min in total
Crypto Grows Up
The interesting part of crypto stopped being the coins. It is now stablecoins moving dollars and Treasuries settling on-chain, which is a much less exciting and much bigger story.
- Stablecoins Are the Internet's Dollar, and Nobody Noticed
- Tokenized Treasuries Are a Better Savings Account Than Your Bank Offers
- Real-World Asset Tokenization: Four Industries That'll Actually Change
5 articles · about 54 min in total
How the Internet Actually Works
Follow one request from the name you typed to the bytes on your screen, then find out why your connection is slower than the number on the box.
- What Is DNS and How Does It Actually Work
- TCP vs UDP: What the Difference Actually Means
- HTTP vs HTTPS: What the S Actually Buys You
9 articles · about 68 min in total
Distributed Systems From First Principles
Once there are two machines, everything you assumed about a single process stops being true. This is the set of trade-offs that replaces those assumptions.
- Monolith vs Microservices: How to Actually Decide
- CAP Is Not “Pick Two of Three”, and It Describes the Rare Case
- Exactly-Once Delivery Does Not Exist. Your Consumer Has To Be Idempotent.
10 articles · about 91 min in total
Design an API People Can Live With
Picking REST or GraphQL is the smallest decision you will make. Retries, auth and rate limits are the ones your callers will actually feel.
- What Is an API, Really
- REST vs GraphQL vs gRPC: How to Actually Pick an API Style
- Rate Limiting: The Algorithm Is the Easy Part
8 articles · about 74 min in total
The AI Agent Stack
What it takes to put an agent in production: giving it context, giving it tools, and then stopping it from being talked into using them against you.
- What Is MCP (Model Context Protocol), Really
- Context Engineering Is the New Prompt Engineering
- RAG Explained: Why Your Chatbot Still Makes Things Up
12 articles · about 124 min in total
Application Security, Attack by Attack
Start at the password store and work outward through the attacks that keep landing, then finish on why known vulnerabilities sit unpatched for years.
- Password Hashing: bcrypt vs Argon2id, and Why Fast Is a Bug
- If Your JWT Needs a Denylist, You Have Rebuilt Sessions With Extra Steps
- Your App Got CSRF Protection in 2020 Without Doing Anything. Three Holes Remain.
11 articles · about 99 min in total
Learn to Program, Properly
The concepts that stay true after the language you learned them in goes out of fashion, starting from the editor and ending at complexity and character encoding.
- What Is an IDE, and Why Does It Matter
- Compiled vs Interpreted Languages Explained
- Comment Syntax in Every Major Programming Language
13 articles · about 90 min in total
Ship It: Delivery and Platform
From a pipeline that builds one container to a platform a hundred engineers use, and the measurement mistakes that make all of it look fine while it is not.
- What Is CI/CD, Really
- Docker vs Virtual Machines: What a Container Actually Is
- Kubernetes in Production: The 2025 Survival Guide
10 articles · about 89 min in total
Where the Data Lives
Choosing a database is mostly choosing which guarantee you are willing to give up. Then it is about making the one you chose go fast.
- SQL vs NoSQL: How to Actually Choose
- Database Architecture Patterns for High-Scale Systems
- Database Indexes: Why Postgres Ignores the One You Added
6 articles · about 55 min in total
The Frontier Model Race
Who is ahead, what a token costs this quarter, and the research that decides whether the next jump comes from more compute or from a smarter shape.
- GPT-5.5 vs Claude Opus 4.7: Where Each Actually Wins
- The Model Price War Is Here. Raw Token Access Is Now a Commodity.
- GPT-5.6 Sol, Terra, Luna: How to Actually Pick a Tier
12 articles · about 123 min in total
AI and the Engineering Job
The honest version of what coding agents do to a career: which rungs of the ladder they remove, which skills they make more valuable, and what happens to the people who stop thinking.
- AI Coding Agents and the Death of the Junior Developer Pipeline
- How I Use Claude Code and Coding Agents Without Becoming Useless
- Knowledge Collapse and Cognitive Debt: Two MIT Papers on AI
6 articles · about 60 min in total
The Modern Web Front End
From the two files every page is still made of, up to a rendering model where half your components never reach the browser at all.
- How HTML and CSS Actually Work Together
- How JavaScript and jQuery Are Related
- Advanced TypeScript Patterns Every Senior Engineer Should Know
9 articles · about 91 min in total
The Languages and the Machine
Memory safety went from a preference to a federal position in about three years. Here is the argument, the hardware underneath it, and how the choice gets made in practice.
- Memory-Safe-by-Default: The US Federal Push and What It Does to Your Stack
- Rust Adoption Stalled: What It Means and What I'd Bet On Instead
- Rust vs Go: How to Choose Your Next Backend
7 articles · about 67 min in total
Math From First Principles
Short derivations rather than formulas to memorize. Where each result comes from, so you can rebuild it when you forget it, which you will.
- Why Pi Is 3.14
- Deriving the Pythagorean Theorem
- What Is a Factorial
7 articles · about 36 min in total
How the Stock Market Actually Works
The conventions nobody explains: why prices are quoted in percentages, what a ticker symbol is, when the market is shut, and what the indicators on every chart are really measuring.
- Why Stocks Have Ticker Symbols (and Why Apple Is AAPL, Not APPL)
- Why Stock Traders Quote Percentages, Not Dollars
- What Is a Stock Split and Why Companies Still Do It
8 articles · about 42 min in total
Inflation, Rates and the Fed
What the central bank actually controls, what it does not, and why the rate that matters to your mortgage is set somewhere else entirely.
- What Is Inflation and How It Actually Eats Your Money
- What Are Bonds, Really, and How Do They Work
- Why Mortgage Rates Don't Follow the Fed
6 articles · about 54 min in total
Startup Funding and Exits
Where venture money is actually going, why the IPO window opens and shuts, and what happens when a famous investor publicly drops a company.
- Where Venture Capital is Flowing in 2025: A Deep Tech Investment Map
- Europe Just Had Its Best VC Quarter in Four Years. It Still Loses.
- Tech IPOs in 2025: What Every Investor Needs to Know Before the Window Opens
5 articles · about 49 min in total
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