Gemini is like modern Gopher, but it is also very opinionated. The protocol does not support extensions and revision, it refuses HTTP, mandates TLS, etc...

That's not the same as having browsers support the markdown content type.

You might disagree about where to draw the line but you can see why they drew a line in the sand. text/markdown would very quickly grow to be everything HTML is.

There's probably a pithy "every internet protocol expands until it can serve ads" lesson in there somewhere.

Markdown generally does include everything HTML is (because you're allowed to write HTML in markdown)

I like your pithy remark! I'm calling that "Flir's Law" from now on, after your username.

I just stole it from jmz - "every program attempts to expand until it can read mail" - I think attribution might be overkill. But thanks for the thought.

Gemini isn't over HTTP and it's not Markdown.