Watching the US Market

What to look at first in the US market

Using a Mac mini as a Proxy Server

Heading back to China soon? Stand up a proxy server at home.

A Long-Term Bullish Options Strategy: LEAPS

Leaning on QQQ’s long-run national luck

An Options Strategy for Range-Bound Markets: the Iron Condor

Profit by betting a stock stays inside a range for a period of time

Options 101

The basics of options

Why Does GPT Use a Decoder-Only Architecture?

Why keep only the decoder? What if you add an encoder? The reversal curse?

Why Do We Need Embeddings?

What is an embedding?

Training an LLM from Scratch: The Full Pipeline

Three main stages

RAG vs. Fine-Tuning: How to Choose?

Some ideas on helping decide.

Retrieval-Augmented Generation (RAG)

What is it and how to utilize it?