Measure, Don't Argue: Testing a "Theory of Everything"
A simple grid of cells looked like it might explain the universe. Here's how we tested every seductive intuition — and how even our metrics fooled us.
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Diffusion vs. the Wave Equation: One Term Apart
I built a 3D grid where energy spreads to its neighbors, then measured what it actually does — and found the exact line between heat and waves.
Run Parallel Claude Code Sessions Safely with Git Worktrees
Why run just one AI session? Git worktrees give each session an isolated copy of your project — shared history, separate files — so several can work at once without colliding.
Plan Mode: Make Claude Code Think Before It Touches Anything
The fastest way to lose an afternoon is letting an AI agent start editing on a vague task. Plan mode forces it to research and propose first — relocating review to where it's cheap.
Custom Slash Commands in Claude Code (They're Skills Now)
Stop retyping the same elaborate prompt. Capture it once as a slash command and invoke it forever — with arguments, live context injection, and control over who can trigger it.
The Neuroscience of Stress: Built for the Wrong Century
Stress is a precisely engineered response built to spike and recover. Here's the two-stage cascade — and why chronic, never-ending stress corrodes the very systems it was meant to protect.
How Habits Form in the Brain (and Why They're So Hard to Break)
A habit is a behavior compressed until it runs without you. The cue-routine-reward loop, why control shifts to autopilot, and why old habits are never really erased.
The Neuroscience of Attention: How Your Brain Picks What to Notice
Your senses deliver far more than you can process. Attention is the ruthless triage system that decides what gets through — which is why you miss the obvious and can't resist a notification.
The Default Mode Network: Your Brain's Idle-Mode Storyteller
Do nothing and your mind wanders — to your past, your future, your self. That's a specific network switching on, and it runs a surprising amount of what you think of as 'you.'
Why Your Brain Replays the Day While You Sleep
"Sleep on it" is real. While you sleep, your brain fast-forwards through the day's experiences to rewrite them into permanent memory — a nightly handoff you can't do awake.
The Context Window Is Your Real Constraint
When an AI session starts forgetting and contradicting itself, it's usually not intelligence that ran out — it's context. How to manage the AI's working memory like the scarce resource it is.