English relaunch

Wiki for what?

A first-principles channel for self-learners. Before you dive into a tool, a tutorial, or a field, we unpack the concept everyone assumes you already know.

Concepts before tutorials

We explain the mental model first, so the next lesson finally has somewhere to land.

Plain English, not jargon fog

Technical terms stay precise, but the path toward them should feel walkable.

New English catalog starts here

The previous Chinese catalog has been retired from public view. New episodes will be English-first.