Field notes from the First Brain.
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Can a Brain Chip Be Hacked? Build a Mental Firewall
Can a brain chip be hacked? In principle yes, researchers call it brainjacking. The one store no attacker can reach is knowledge held natively in your head.
BCI Implants for the Elite: What Neuralink Really Costs
Reported Neuralink prices start around 10,000 dollars, but cost is the wrong number to watch. A brain chip only amplifies the mind you plug into it.
Before the Machine Saves You: A Word on Human Enhancement
The honest final word on human enhancement: no app, chip, or AI can save a mind that has gone to sleep. Build your First Brain before you reach for the machine.
Do Binaural Beats Work for Studying? The Evidence
Do binaural beats work for studying? The evidence is mixed and modest, and the entrainment claim is unproven. At best they set a focus state, not the learning.
How to Increase Gamma Brain Waves for Insight
How to increase gamma brain waves? Meditation reliably raises them, but you cannot will an insight. Gamma binds distant ideas: feed it material, train attention.
Can Wearables Track Mental Fatigue? Gauge vs Upgrade
Can wearables track mental fatigue? Indirectly yes, HRV and pupil signals flag the load. But the gauge only shows the RAM is full. The First Brain adds RAM.
Best Biohacks for Mental Clarity? Hack the Software
Best biohacks for mental clarity? Cold plunges and nootropics tune the hardware and work. But a sharp brain running no real thinking is a fast machine idling.
Black Swans and Biological Imagination
You cannot predict a Black Swan; by definition it is outside the data. AI is worse at it than you. The human edge is imagining the impossible and building to survive it.
Brain Energy: The Mitochondria of the First Brain
Mental energy is literal: the brain burns a fifth of your energy as ATP. Fuel the engine with sleep and exercise, then make it efficient with a connected First Brain.
How to Connect Ideas in the Brain: Build the Edges
How to connect ideas in the brain? Co-activate them. Neurons that fire together wire together, so you build an edge by thinking two concepts together, repeatedly.
Building an Off-World Second Brain for a Space Colony
How to build a database for a space colony: design for total isolation. With Earth minutes away, it must be offline-first, redundant, and shaped to how the crew thinks.
Object-Based Note-Taking: Why Objects Beat Pages
Object-based note-taking treats every note as a typed thing, a person, a book, an idea, instead of a page in a folder. It mirrors how your First Brain already works.
Is AI Bad for the Environment? The Hidden Footprint
Is AI bad for the environment? One query is small, but about 10x a search. Routing every document through cloud AI multiplies a tiny cost by a huge volume.
Codebases as External First Brains
To understand a large codebase, don't read it; build a mental model. A codebase is an externalized knowledge graph, and understanding it means rebuilding it in your head.
What Are Neurorights? Cognitive Liberty in the BCI Era
What are neurorights? Five proposed protections for the brain: mental privacy, identity, free will, fair access, no bias. Chile enshrined them first.
Cognitive Longevity and the First Brain
Keeping the brain sharp is largely modifiable: up to 45% of dementia is preventable, and a densely connected First Brain builds the cognitive reserve that resists decline.
How to Heal Screen Brain: Active Cognitive Rehab
How to heal screen brain? Deleting apps stops the harm but rebuilds nothing. Recovery is active rehab: daily node-linking that retrains attention like a muscle.
How to Stop AI From Thinking for You: Sovereignty
How to stop AI from thinking for you? Reverse the order. Form your own view first, then bring in AI to challenge it. Consult it first and you surrender authorship.
Data Privacy and the Exocortex: Feeding AI Your Notes
Is it safe to feed your second brain to AI? Consumer AI often trains on your inputs by default. Reduce the risk, but keep your most private thinking in your First Brain.
Debugging the First Brain: Logic Building in Programming
Logic building is not syntax; it is an accurate mental model of the system. A bug is a broken edge in that model, and offloading code to AI quietly stops you building it.
Can We Survive Without Computers? The 20-Watt Brain
Can humanity survive without computers? Yes, the original one runs on 20 watts of glucose and oxygen, not a power grid. The First Brain is the resilient substrate.
How to Spot Deepfakes in 2026: Check the Story
How to spot deepfakes in 2026? Pixel hunting is a losing arms race. The durable test is narrative: does the video fit the subject's known behavior and context?
Why You're Addicted to Organizing Your Notes
Why am I addicted to organizing notes? Rearranging the vault is productive procrastination: a cheap dopamine hit. Real learning pays out after friction.
How to Interview Retiring Experts: Extract the Graph
How to interview retiring experts? Don't ask for facts; their best judgment is tacit. Use cognitive task analysis to extract the conceptual graph, not the data.