Blog posts

2025

Always Day One

12 minute read

Published:

In 2012, Jeff Bezos wrote in his annual letter to Amazon shareholders: “Day 2 is stasis, followed by irrelevance, followed by excruciating painful decline, followed by death.” He used “Day One” to describe a state of perpetual beginning—curious, disruptive, restless. Years later, ByteDance adopted this philosophy as the first principle of its corporate culture: Always Day One.

Finding My Way

11 minute read

Published:

Today, I’ve decided to start writing blogs again—or perhaps to start properly for the first time. Three years ago, as a freshman at Beijing University of Posts and Telecommunications, I kept a site at momoyeyu.github.io. But those posts were closer to study notes than real writing. So here, on March 31, 2025, I’m starting over.