Software 1.0 is hand-written code; Software 2.0 is the weights of neural networks; Software 3.0 is the prompt.
The AI-Pilled Daily
The AI world keeps moving.I'm watching it for you
News
What happened in AI todayNotes
FeldnotizenPerspectives
Stimmen, die bleibenThe most durable skill of this era is learning anything you want to learn.
Plans
In ArbeitCarol's Website
Built this site in two days with Claude Code — a full idea-to-product exercise. You're looking at it.
The Big Inventory of AI Products
A taxonomy I built in late 2025. Quietly bookmarked by a handful of friends since.
AI Product Weekly
A curated weekly note: things I noticed, things I changed my mind on, things worth re-reading.
Digital Twin Agent v2
Upgrading from system-prompt context to RAG + conversation history. Make the twin actually answer for me.
About
Über dieses QuartalTsinghua undergrad · AI PM @ major tech co · 100M+ user product growth · AI-pilled
I'm Carol. By day I build AI products; by night I write down the people, ideas and observations I want to keep. This isn't a blog — it's closer to an AI-pilled daily, kept open to whoever finds it useful.
AI gives us more information and less judgement. So this daily walks through it for you, then keeps the part I actually wanted to say after reading it. Each piece should be worth reading twice.
If you're also thinking about AI in relation to product, expression, or the shape of your life, drop a contact — or just talk to my digital twin.