Thoughts
The Vim learning curve is just so unbelievably steep.
I have a file without an extension. I want to tell Vim to syntax highlight it as markdown. In a GUI editor, that would be a button. But I've read the Vim help pages for `:colorscheme` `:language` `:syntax` and `:highlight` and none of them can be used to change the language Vim thinks the file is. (`:language` is for changing the interface language.)