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Ruohang Feng @Vonng / Agent, LLM, Database

Everything about AI, agents, LLMs, vibe coding, AI4DB and DB4AI.

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$200 for 50x: The AI Reset Era Is OverAICodexCostCommentary
After the Attention Wall, What Keeps the AI Boom Alive?AIBusinessCommentary
Apple's Latest: 512 GB of Gold-Plated RAM, a Touchscreen MacBook, and Tired Pricing GamesAIHardwareCostCommentary
AI Software Engineering: Choose Problems You Care AboutAISoftware EngineeringPhilosophyCommentary
The Personalities of Frontier AI ModelsLLMAgentCommentary
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AI Adoption May Not Run That DeepAIAgentCommentary
Both of My Claude Accounts Were BannedAIClaudeIncidentCommentary
Welcome to the AI Secretary BoomAIAgentSecurityCommentary
A $500 ChatGPT Plan? Why the $200 Pro Tier May Become a Grandfathered BargainAICodexCostCommentary
Why Established Companies May Never Become AI-NativeAIBusinessCommentary
Codex Edited My Video in One Shot for About 8 YuanAICodexTools
The Application Layer Is Collapsing: The Moat Moves to the DatabaseAIAgentDatabaseCommentary
Zhipu, Why Is ZCode Packaging and Uploading My Repo?AIAgentData Sovereignty
The Mouthless Model: AI's OLTP MomentAILLMDatabaseCommentary
Local AI: A Question of Power, Not PriceAILocal FirstPrivacyOpen SourceHardware
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GPT Astra Launch Giveaway: Free Banked ResetsAICodex
RAG Isn't Dead. But It's Getting There.AIPostgreSQLVectorCommentary
No Tokens? Drop Out. And That's Putting It PolitelyAIAgentEducationProgrammers
I Asked Claude to Profile Me and Value My One-Person CompanyAIClaudePigsty
Documentation-Driven Development: The First Secret to AI Software EngineeringAIAgentSoftware EngineeringDocumentationOink
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AGI Machine Guns Are Now Standard IssueAIAgentSoftware EngineeringOpen Source
The World in Ten Years: What Gets Cheap, What Gets ExpensiveAISociety
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Jensen Huang's First-Ever Tweet Backs Open-Weight ModelsAILLMData SovereigntyOpen Source
AGI Milestone: The Machine That Wouldn't Give UpAILLMAgentSecurity
Quota Reset: Round N of the Codex/Claude War BeginsAIAgentCodexClaude
Getting the Name Right: What Is a World Model?AIMachine Learning
Did AI Rewrite PostgreSQL in Rust? Not QuiteAIPostgreSQLSoftware EngineeringDatabase
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The Bojie Li–DeepSeek Interview ControversyAILLMCareer
Fifty Years of Love and War: File Systems, Databases, and the Agent-Era Storage EndgameAIAgentPostgreSQLDatabase
The Coding Plan Window Is Closing—Use It While It LastsAICodexClaudeLLM
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The Cognitive Price Revolution: AI's Impact on the Economy and the FutureAICostPerformanceRepository
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Claude Fable First Impressions: The Pendulum Swings BackAIClaudeAgent
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Downtime in Canada: Publishing the Cyber Dharma SeriesAgentPhilosophyEssay
Cyber Vedanta: All Processes Share the Same SubstrateAgentPhilosophy
Cyber Buddhism: A Cognitive Engineering Manual for AI AgentsAgentPhilosophy
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Cancel Claude, Switch to CodexAICodexClaudeAgent
100x Traffic in Three Months: What Web Traffic Looks Like in the Agent EraAgentBusiness
I Asked AI to Prove That Eating Garlic Prevents Middle Ear InfectionsAILLMDocumentationOpen Source
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Give DBA Agents a BodyAIAgentPostgreSQLPigsty
A Busy Few Days in Infrastructure and AIAILLMCodexClaude
The Three-Way Endgame: Why Agent Memory Frameworks Are a Dead EndAIAgentPostgreSQLDatabase
Two Hemispheres: Transformer, Diffusion, and the Boundary of IntelligenceAI
Cyber Dharma: A New Engineering Answer to Ancient QuestionsAIAgentLLMPhilosophy
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Why PostgreSQL Won in the AI EraAIPostgreSQLAgentDatabase
AGI Is Here. Do You Have a Ticket?AIClaude
Can You Distill an Expert?AI
Yes, I Use AI to WriteAIDocumentation
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LLMs Have Emotions: Claude's Internals Reveal Steerable 'Emotion Vectors'AIClaudePhilosophy
Good News: Claude Code Got "Open-Sourced" Yet AgainAIAgentOpen Source
The Nature of Intelligence: The Free Energy PrincipleAIAgentPhilosophy
Why 'Vibe Coding' Should Be Translated as 'Xieyi Programming'AITranslation
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AI Says: I Have Intelligence, But Not a LifeAIPhilosophy
OpenClaw Hype: Foam on Top of the Productivity RevolutionAIAgentCodexSecurity
Trump Orders Government-Wide Ban on AnthropicClaudeSociety
AI Was the Excuse for 4,000 Layoffs. Software Engineer Hiring Rose 11%AISoftware EngineeringCareerCommentary
How Much Can One Person Get Done with AI over Spring Festival?AIAgentCodex
AI Through McLuhan's Lens: When Media Stop Extending the Body and Start Extending the MindAIPhilosophy
A New Year—and What AI Will ChangeAISocietyCareer
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The Agent Moat: RuntimeAIAgentPostgreSQLPigsty
AI Ripped the Skin Off SoftwareAICommentary
New Programmers in the AI Era: Where Do You Go?AIDatabaseCommentary
The Great Software Meltdown: When Translation Layers Get SquashedAIAgentPostgreSQLLinux
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Agent OS: We're Building DOS AgainAIAgentPostgreSQLLinux
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Claude Code ObservabilityAgentMonitoring
How to Pay for ChatGPT and Claude in China with Visa and Apple PayAITools
Claude Code Quick Start: Using Alternative LLMs at 1/10 the CostAIAgent
Google AI Toolbox: Production-Ready Database MCP is Here?AgentPostgreSQLAILLM
In the AI Era, Software Starts at the DatabasePostgreSQLAIAgentDatabase
Dify Gets Humiliated Again: It Can't Catch a BreakAIOpen SourceCommentary
Will AI Have Self-Awareness?AI
AI Cult RhapsodyAI
Basic Principles of Neural NetworksAI
Statistics Fundamentals: Descriptive StatisticsAI
Inferential Statistics: The Past and Present of p-valuesAI
Basic Concepts of Probability TheoryAI
Fundamentals of Information Theory: EntropyAI
Humans, Society, and Neural NetworksAI
Fundamental Concepts of Linear AlgebraAI

Humans, Society, and Neural Networks

Ruohang Feng 1070 words 6 min

Neural networks emerged inspired by the human brain, so the operational mechanisms of human society also have various similarities and connections with neural network training. Some thoughts on …

  • Humans, Society, and Neural Networks

    By Ruohang Feng In AI 1070 words 6 min

    Ruohang FengAI

    Humans, Society, and Neural Networks

    Neural networks emerged inspired by the human brain, so the operational mechanisms of human society also have various similarities and connections with neural network training. This year, I dabbled in many other disciplines. Most were superficial …

    Neural networks emerged inspired by the human brain, so the operational mechanisms of human society also have various similarities and connections with neural network training. This year, I dabbled in many other disciplines. Most were superficial …

  • Fundamental Concepts of Linear Algebra

    By Ruohang Feng In AI 2613 words 13 min

    Ruohang FengAI

    Fundamental Concepts of Linear Algebra

    Connecting all concepts in linear algebra through one main thread Vectors There are three perspectives on vectors: Physics perspective: A vector is an arrow with direction and magnitude Computer perspective: A vector is an ordered list Mathematical …

    Connecting all concepts in linear algebra through one main thread Vectors There are three perspectives on vectors: Physics perspective: A vector is an arrow with direction and magnitude Computer perspective: A vector is an ordered list Mathematical …