The Notes app added Markdown import and export in the version 26 operating system releases, and the macOS 27 Golden Gate update lets us copy and paste as Markdown. Why can’t we just write natively in that hoary, simple format? I use Markdown all day, every day. In fact, I’m writing these words in Markdown without you even knowing it. All content-management systems (CMSes) I’m aware of support native Markdown entries when posting, and many writing and note-taking apps integrate Markdown conventions without needing to trumpet them.1 I typed two hash marks (##) at the start of a line by…