About

Cosmocat is Ian's personal site. It covers three areas:

• AI Frontier — hands-on AI tool tests, model experiments and industry notes
• One-person business — content sites, publishing, and small products run by one person
• Quant & investing — study notes and market observation (personal log only, not investment advice)

The site is bilingual: Chinese is the complete archive at /zh/; English carries a growing selection of posts.

How I write

1. Only what I have verified myself: local tests, real numbers, first-hand logs
2. Conclusions come with reasons — not just what, but why and how to use it
3. Uncertainty is labelled: figures without a source or a reproduction are marked as such