Build First Brain Journal
The Build First Brain Journal

Field notes from the First Brain.

Page 4 of 38.

Schützt Gehirnjogging vor Demenz? Was wirklich hilft
Mind & Learning

Schützt Gehirnjogging vor Demenz? Was wirklich hilft

Schützt Gehirnjogging vor Demenz? Kaum: Rätsel trainieren nur sich selbst. Was kognitive Reserve wirklich aufbaut, von breitem Lernen bis Bewegung.

Jun 10, 2026 · 10 min read
Warum Tech-Eliten ihre Kinder von Bildschirmen fernhalten
First Brain & PKM

Warum Tech-Eliten ihre Kinder von Bildschirmen fernhalten

Lassen Tech-CEOs ihre Kinder ans iPad? Auffällig selten: Was sie schützen, ist der Aufbau von Konzentration und Verknüpfung, und das ist übertragbar.

Jun 10, 2026 · 10 min read
Raus aus der Tutorial-Hölle: vom Zuschauen zum Können
Networked Thought

Raus aus der Tutorial-Hölle: vom Zuschauen zum Können

Aus der Tutorial-Hölle entkommst du, indem du aufhörst zu konsumieren und anfängst zu bauen. Warum Zuschauen Können vortäuscht und die Reibung das Lernen ist.

Jun 10, 2026 · 10 min read
Bestes Team-Wiki? Warum euer Notion im Chaos versinkt
First Brain & PKM

Bestes Team-Wiki? Warum euer Notion im Chaos versinkt

Das beste Team-Wiki ist keine Tool-Frage: Euer Notion versinkt im Chaos, weil 50 Denkstrukturen in eine Hierarchie gepresst werden. Diese Regeln retten es.

Jun 10, 2026 · 10 min read
Linke und rechte Gehirnhälfte verbinden: Mythos und Fakten
First Brain & PKM

Linke und rechte Gehirnhälfte verbinden: Mythos und Fakten

Linke und rechte Gehirnhälfte verbinden? Beide arbeiten über den Balken längst zusammen. Was der Mythos verspricht und was dem Denken wirklich hilft.

Jun 10, 2026 · 10 min read
Kann die Polizei meine Notion-Notizen beschlagnahmen?
First Brain & PKM

Kann die Polizei meine Notion-Notizen beschlagnahmen?

Kann die Polizei Cloud-Notizen beschlagnahmen? Ja, mit Anordnung. Dein Gedächtnis nicht: Warum das erste Gehirn der einzige wirklich private Speicher ist.

Jun 10, 2026 · 10 min read
AI offloads reasoning, not just memory
AI & Cognition

AI offloads reasoning, not just memory

Calculators offloaded computation, GPS navigation, writing memory. AI is the first tool to offload reasoning itself, which is different in kind.

Jun 9, 2026 · 10 min read
Does becoming ambidextrous make you smarter?
Networked Thought

Does becoming ambidextrous make you smarter?

Adult hand-switching is motor learning, not a brain upgrade. The corpus callosum is real, but the bridging that matters is connecting ideas, not hands.

Jun 9, 2026 · 10 min read
Caffeine limits: why more focus is not more insight
Networked Thought

Caffeine limits: why more focus is not more insight

Caffeine sharpens focused, convergent work but narrows the associative thinking insight needs. Past a dose, it locks the mind into linear tracks.

Jun 9, 2026 · 10 min read
Claude Fable 5 vs GPT-5.5: which is better?
AI & Cognition

Claude Fable 5 vs GPT-5.5: which is better?

No clean overall winner: Fable 5 leads Anthropic's benchmarks, GPT-5.5 is cheaper at $5/$30 vs $10/$50, both have 1M context. Test on your own task.

Jun 9, 2026 · 10 min read
Cognitive augmentation starts with your biology
Future & Language

Cognitive augmentation starts with your biology

Every tool amplifies the mind it is attached to. Real augmentation builds a connected internal structure first, then adds the AI and the hardware.

Jun 9, 2026 · 10 min read
What If the Internet Went Down Forever? Think Locally
Networked Thought

What If the Internet Went Down Forever? Think Locally

What to do if the internet goes down forever? The real risk is not lost files but a mind that cannot think without the cloud. Build the knowledge into yourself.

Jun 9, 2026 · 10 min read
Cyborg vs Centaur: how to work with AI
AI & Cognition

Cyborg vs Centaur: how to work with AI

Three ways to work with AI, and the research favors one. A 2026 study of 244 consultants found Centaurs, just 14%, hit the highest accuracy.

Jun 9, 2026 · 10 min read
Divination, decoded: random input for new ideas
Networked Thought

Divination, decoded: random input for new ideas

Tarot and the I Ching work as thinking tools, not prediction: a random prompt breaks fixation and forces you to synthesize a new perspective.

Jun 9, 2026 · 10 min read
Is Voice Journaling Effective? Escaping Your Own Echo
Networked Thought

Is Voice Journaling Effective? Escaping Your Own Echo

Is voice journaling effective? It can be, but spoken venting loops your own biases. It works when you force yourself to map the contradictory case aloud.

Jun 9, 2026 · 10 min read
How Does Vision Pro Eye Tracking Work? Gaze as Input
Neural Interfaces

How Does Vision Pro Eye Tracking Work? Gaze as Input

How does Vision Pro eye tracking work? Infrared cameras map where you look, and the gaze becomes the cursor. A controllable interface needs a controllable mind.

Jun 9, 2026 · 10 min read
Fasting for neurogenesis: what BDNF actually does
Networked Thought

Fasting for neurogenesis: what BDNF actually does

Fasting raises BDNF and growth chemistry tied to new neural connections. It improves the substrate, but it does not build knowledge on its own.

Jun 9, 2026 · 10 min read
How Thought-to-Text Actually Feels: Formatting the Mind
Neural Interfaces

How Thought-to-Text Actually Feels: Formatting the Mind

Thought-to-text does not feel like telepathy. It feels like formatting: breaking a vague feeling into discrete nodes a brain interface can actually read.

Jun 9, 2026 · 10 min read
What GLP-1 drugs do to motivation and reward
Networked Thought

What GLP-1 drugs do to motivation and reward

GLP-1 drugs act on the dopamine reward system, not just appetite. If cheap thrills fade, the motivation left has to come from structural synthesis.

Jun 9, 2026 · 10 min read
HRV and cognitive flexibility: what the link means
Networked Thought

HRV and cognitive flexibility: what the link means

Higher HRV tracks with flexible thinking through shared prefrontal-vagal circuitry. It is a marker of readiness, not a switch for synthesis.

Jun 9, 2026 · 10 min read
How do I access Claude Fable 5?
AI & Cognition

How do I access Claude Fable 5?

Claude Fable 5 is on the API (claude-fable-5) and claude.ai now; paid plans are phased. Bedrock, Vertex, and Copilot are unconfirmed; Mythos 5 is not public.

Jun 9, 2026 · 10 min read
How to stop hoarding notes and start synthesizing
Future & Language

How to stop hoarding notes and start synthesizing

Stop hoarding notes by redefining a note as a claim you can defend and connect. Capture less, process to claims, link on the way in, write on a schedule.

Jun 9, 2026 · 10 min read
What Nick Land's philosophy means for enhancement
Future & Language

What Nick Land's philosophy means for enhancement

Land's accelerationism reads the urge to enhance as a systemic pull, not a free choice. The disciplined response is to strengthen your substrate first.

Jun 9, 2026 · 10 min read
How much does Claude Fable 5 cost?
AI & Cognition

How much does Claude Fable 5 cost?

Claude Fable 5 is $10 per million input tokens and $50 output, double Opus 4.8. 1M context at standard rates; Batch API halves it; subscriptions are phased.

Jun 9, 2026 · 10 min read