Essays & Field Notes

Following interesting questions.

Curiosity wherever it leads: technology, markets, AI, creativity, decision-making, and beyond.

Sep 23, 2026research9 min read

Teaching a Small Transformer to Play Wordle

I trained a 7.2M Transformer on Wordle games. After SFT, DPO and GRPO, soft distillation and full-word scoring reached a 95.64% win rate on 719 known words.

Sep 10, 2026essay7 min read

Does Shorter HBM Mean Less AI Memory Demand?

A technical and economic guide to HBM stack height, capacity, bandwidth, packaging yield, qualified high-speed supply, and the competing interpretations of lower-layer AI memory.

Aug 13, 2026research7 min read

I Abliterated Qwen3.5-9B and Traced the Refusal Through the Weights

I weakened refusal in Qwen3.5-9B and found that most of the change came from one simple update in layer 15.

Jul 29, 2026essay9 min read

I Put Windows in a VM So I Never Have to Dual-Boot Again

How I run FL Studio in a Windows 10 KVM on Ubuntu instead of dual-booting: the setup, the mistakes, the fixes, and the shortcuts that make the VM feel like a normal Linux app.