Preface: PDF Black Magic in the Gemini 3 Era

As a developer who loves integrating AI into side projects, my relationship with Google Gemini over the past six months has been like a roller coaster: from a honeymoon phase to a disappointing breakup (turning to hand-coded wheels), and finally to …

In the tech investment landscape of 2025, the most compelling showdown is undoubtedly between Google’s Gemini and xAI’s Grok. This is not just a technical contest between two Large Language Models (LLMs), but a collision of two distinct business models and capital logics.

With …

Preface: AI + LLM = A Second Brain?

A few days ago, I came across a post in a Facebook group discussing how AI + LLM can act as a second brain.

As I recall, the author’s example involved integrating Obsidian (a note-taking app) with an LLM plugin. This allows your past notes to truly become a …

Introduction: A Lazy Idea

Around March of this year (2025-03), I was chatting with a colleague who mentioned he had recently subscribed to The Wall Street Journal.

He also receives the daily print version of the WSJ in his email. However, for a working engineer, reading a full newspaper every day is …