More than one‐third of the world's population uses a writing system that includes both uppercase and lowercase letter forms.

A Reddit post about a child’s alphabet quilt sparked debate over what “P” stood for—was it a pagoda, a pinafore, or something else entirely?

Okay: Lyft CEO David Risher. Here we go. This interview has been lightly edited for length and clarity. David Risher, you’re the CEO of Lyft. Welcome to Decoder.