We explain the mental model first, so the next lesson finally has somewhere to land.
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.
Technical terms stay precise, but the path toward them should feel walkable.
The previous Chinese catalog has been retired from public view. New episodes will be English-first.