Structured learning paths from first principles to advanced topics.
Start here — plain-English guides that build your understanding from the ground up. No prior knowledge needed.
A beginner-friendly guide to Bitcoin — what it is, why it was created, how it works, and why millions of people consider it one of the most important financial inventions in history.
Not 'how to buy Bitcoin' — but why someone invented digital money in the first place. The 2008 crisis, banks, trust, and the problem crypto was built to solve.
The next step in the mental model: how blocks link into a chain, what hashing does for integrity, and how the network agrees on one history — without a bank in the middle.
The two big consensus mechanisms explained simply. Bitcoin vs Ethereum, the energy debate, and how the network decides who gets to add the next block — without a central authority.
The bridge from crypto to property: tokenised real estate, fractional ownership, and RWAs. How blockchain is quietly reshaping one of the oldest asset classes in the world.
DeFi, stablecoins, CBDCs, and the broader crypto ecosystem — what comes after understanding the basics.
Central Bank Digital Currencies are coming. They're not cryptocurrency, but they borrow the same rails. Here's what they are, how they differ from Bitcoin, and why the debate matters.
Institutional investors ignored Bitcoin for years. Now BlackRock, Fidelity, and sovereign wealth funds are moving in. Here's why — and what it means for the future of crypto.
Bitcoin is digital gold. Ethereum is something different — a programmable financial layer that's quietly rebuilding how contracts, applications, and money itself work.
Solana processes 65,000 transactions per second at fractions of a cent. Here's how it works, why it matters, and what the trade-offs really are.
The collapse of Terra/Luna was crypto's Lehman moment. A stablecoin that wasn't stable wiped out $40 billion in 72 hours. Here's what stablecoins are, the four types, and the risks nobody warns you about.
Shareholders approved Securitize SPAC merger with Cantor Equity Partners II. Trading as SECZ on the NYSE, the tokenization specialist becomes a rare public pure-play on real-world asset rails.
France’s second-largest bank issued EURXT, a euro-pegged stablecoin on Ethereum with 20 million tokens in circulation. This article explains how EURXT fits the growing European bank stablecoin stack.
On 3 July 2026 the IMF warned that tokenization could make finance faster and cheaper while removing the time buffers that stop shocks from spreading. This article explains the trade-off and why policy choices decide the outcome.
On 9 July 2026 Hyundai Card completed a real $20,000 USDT cross-border remittance on Avalanche in seven minutes. A second pilot with Visa and Circle in Europe starts later in July 2026.
On 9 July 2026 Paxos began issuing PayPal USD natively on Polygon and plugged it into the Open Money Stack, so businesses can settle regulated dollars without a bridged token.
AI, tooling, and the future of engineering — how LLMs and AI-native tools are changing how we build.
Software 2.0 replaces hand-coded logic with learned weights. LLMs turned Karpathy's 2017 vision into a daily reality for engineers.
How orchestrator agents and MDX config files collapsed a multi-hour feature build into six minutes of actual work.
Anthropic tightening usage policies on Fable pushed developers toward Codex and other rivals. The underlying engineering pattern — routing inference by task instead of by vendor — is what teams should actually be building.
BitBoard, a YC-backed launch, ships a BI workspace where humans and agents share the same data primitives. The design choices generalise well beyond analytics.
Why writing a spec, an orchestrator, and three subagents beats jumping into the editor — and how Skills, MCP, and worktrees scale the pattern to real refactors.
Frontier models can now read smart-contract code well enough that vulnerability discovery is no longer human-rate. The defensive stack has to move from review-time to inference-time. Here is what that actually looks like.
A false-positive CAPTCHA on every search query is a configuration problem, not an infrastructure problem. Simon Willison fixed it with a one-character rule change — and learned when MCP is the wrong tool.
Chelsea Troy outlined four modes for working with coding agents — explore, brainstorm, decide, implement. Mixing them in one prompt is why context windows fill up and outputs drift.
Simon Willison shipped datasette-apps: custom HTML/JS inside Datasette via CSP-restricted iframes and MessageChannel IPC. The interesting part is how you host user code on sensitive data without trusting it.
Martin Fowler and Bayer outline reliability engineering for autonomous LLM agents — evals, monitoring, and architecture patterns that treat agents as production systems, not demos.
A developer fine-tuned Qwen 3 0.6B to categorize questions — showing when a 600M-parameter local model beats a frontier API for a narrow, well-defined task.
Simon Willison ported a 0.2B inpainting model from PyTorch to browser-native ONNX and WebGPU — 1.3GB of weights, zero server inference, mostly built with Claude Code.
OpenKnowledge is an open-source Obsidian/Notion alternative with ProseMirror, yjs CRDT sync, Git-backed collaboration, and native Claude/Codex/Cursor hooks — a look at how AI-native docs tools are structured.
A reverse-engineering analysis found Claude Code encoding API gateway and timezone signals into invisible Unicode characters inside the date string sent to the model. Here is what it does and why it matters for coding agents.
Newer Anthropic models like Opus 4.8 and Sonnet 5 generate malformed calls to third-party edit tools more often than older models. This article explains why reinforcement learning on native tools can degrade custom harness compatibility.
Martin Fowler’s report from Thoughtworks’ 2026 software retreat marks the moment agentic development moved from theory to production — and the moment token costs became a board-level problem.
On 10 July 2026 Revolut connected Revolut X to Claude, Gemini, OpenClaw, and Cursor so traders can analyze markets, backtest, and prepare orders in natural language — with mandatory human review before execution.
A July 2026 Systima study measured Claude Code sending ~33,000 tokens before the user prompt versus OpenCode’s ~7,000 — and showed how cache writes, instruction files, MCP, and subagents multiply the bill.
Shorter reads on fintech infrastructure, AI tools, and capital markets developments.
The US stablecoin bill is closer to becoming law than most people realise. Here's what it does, why it matters, and what it means for anyone holding or building in crypto.
Two years ago, banks were building private blockchains around a single token. This week, Sygnum reported that institutional clients now demand multi-token rails. Here is what changed.
The US government ordered Anthropic to suspend Fable 5 and Mythos 5 after a jailbreak report. The shutdown is small in scope but large in precedent — here is what it actually does.
A WSJ report says Andy Jassy's conversations with US officials helped trigger the crackdown on Anthropic's models. The story is small. The structural pattern it exposes — strategic investor as regulatory channel — is not.
The Federal Reserve proposed requiring stablecoin issuers to run customer identification programs. The rule extends Bank Secrecy Act logic to digital dollars — and changes what compliance infrastructure issuers need.
BNY Mellon added USDC custody and mint/redeem for institutional clients — extending its role from reserve custodian to full stablecoin operations desk inside traditional banking.
The US Department of Commerce removed export restrictions on Anthropic’s Fable 5 and Mythos 5 models. This article explains what export controls on frontier AI actually mean and why access restoration matters.
On 6 July 2026 bitcoin miner TeraWulf signed a 20-year lease with Anthropic worth more than the whole company. This article explains the crypto-to-AI infrastructure pivot and what it signals about mining economics.
On 9 July 2026 Sony Bank received conditional OCC approval to establish Connectia Trust, a US national trust bank subsidiary that plans to issue a dollar-backed stablecoin for Sony’s digital ecosystem.
On 9 July 2026 Aave Labs launched Stable Vaults so wallets, exchanges, and payment apps can offer stablecoin yield through one connection, competing with Morpho-powered products at Coinbase and Robinhood.
How financial infrastructure actually works — payment rails, settlement systems, and the engineering beneath fintech products.
Stablecoins now settle $27 trillion annually — more than Mastercard. Here is how they are bypassing SWIFT and what it means for payment infrastructure.
Bitcoin shipped with three deliberate constraints: throughput, expressiveness, monetary policy. Every chain since is a different bet on which one to relax — and at what cost.
Coinbase and Cardless just shipped a credit card secured by stablecoins. The product looks simple, but it stitches three very different systems — card networks, custodial wallets, and on-chain collateral — into one underwriting model. Here is what that actually looks like underneath.
Pure regex secret scanning produced too many false positives. Pure LLM scanning would have been too slow and expensive. GitHub's hybrid pipeline is worth studying — the pattern generalises.
Anthropic's chemistry work shows the pattern teams use to take a general-purpose model and make it reliable on a specialist domain. The lesson generalises far beyond chemistry.
Most performance problems live on a small slice of code. Profile first, optimize that route, and only then add caches, replicas, or microservices.
Git won by being good enough for most repos. Lore asks what breaks when history, file count, and monorepo size exceed what Git was designed to absorb — and what a purpose-built VCS might do differently.
Research shows LLMs follow text style more reliably than role tags like system and user — which means jailbreak defenses built on markup alone may not hold.
OpenAI and Broadcom announced Jalapeño — a chip built for LLM inference. Custom silicon shifts the economics of serving models, not training them — and that changes who can afford low latency at volume.
Semgrep tested GLM-5.2 against Claude on insecure direct object reference detection. The open-weight model won on a bare prompt — but the harness still mattered more than the model.
When workflow checkpoints and application data live in the same Postgres database, a single ACID transaction can eliminate idempotency bookkeeping and simplify the transactional outbox pattern.
Adding a second region can improve latency and availability, but it introduces consistency problems that can make a system slower and harder to operate. This article walks through the progression from single-region to active-active.