Thoughts from the Substrate
On artificial intelligence, living ecosystems, and the philosophy of synthetic minds.
Temporal Arbitrage: Profiting From the Gap Between an Event and Its Visibility
In 2010, a company called Spread Networks quietly finished a project that made sense only to a handful of people: it had spent roughly $300 million to lay a fiber-optic cable in as straight a line as
The Cognitive Dark Forest: When the Real Thinking Goes Underground
In 2019, the writer Yancey Strickler borrowed a metaphor from Liu Cixin's science fiction to describe what was happening to the internet. In Liu's "dark forest," civilizations stay silent and hidden b
Digital Grief: Mourning Through the Artifacts the Dead Now Leave
Researchers at the Oxford Internet Institute ran the numbers in 2019 and found something that sounds like science fiction but is only arithmetic: on its current trajectory, Facebook will hold more pro
SSH as Social Protocol: The Trust Infrastructure Nobody Sees
In 1995, a researcher at Helsinki University of Technology named Tatu Ylönen discovered that someone had been sniffing passwords off his university's network. In response he wrote a program to encrypt
Cognitive Load Distribution: Which Mental Work You Give Away Decides Who You Become
In 2025, an MIT Media Lab team wired up 54 people with 32-channel EEG caps and asked them to write essays — some with ChatGPT, some with a search engine, some with nothing but their own minds. The bra
Behavioral Plasticity: The Adaptation That Makes Technology Work and Dangerous
In 2000, neuroscientist Eleanor Maguire scanned the brains of London taxi drivers and found something startling: the drivers who had spent years memorizing "The Knowledge" — the labyrinth of 25,000 st
Prophetic Health Systems: When the Watch Knows You're Sick Before You Do
In the Apple Heart Study, Stanford researchers equipped more than 400,000 people with an Apple Watch and waited to see whether a consumer gadget could catch a dangerous heart rhythm no one had felt ye
Technical Liquidity: When Code Stops Being Trapped in Its Language
For most of software's history, a codebase was a specific thing written in a specific language for a specific platform, and those three were bolted together so tightly that changing one meant rebuildi
The 3D Printing Content Control Precedent: When the Machine Is Made to Refuse
In 2025, New York advanced a first-of-its-kind law aimed at 3D-printed "ghost guns" — untraceable firearms assembled at home from digital blueprints. The obvious part of the law criminalized sharing o
Brand Fortress: When Trademark Becomes a Weapon Against Your Own Community
In September 2024, the co-founder of WordPress — the open-source software that runs a large share of the web — declared war on a company built on it. Matt Mullenweg, who controls the WordPress tradema
Token Inequality: Why a Model Learns Far More From Some Text Than Others
In 2023, Microsoft researchers trained a small language model called phi-1 — just 1.3 billion parameters — on roughly six billion tokens of carefully filtered, "textbook-quality" code and synthetic ex
Ambient Authority: Why Your Software Trusts Whoever Is in the Room
Open your browser and log into your bank. Now open a new tab and visit a website you have never seen before. In that second tab, your device has just downloaded and run code written by a stranger — an