Its developer, Joris van der Hoeven, is one of the co-authors of this research paper that has been exported to HTML, so I presume that the paper was written specifically in/for TeXmacs: your arbitrary LaTeX document won't be so easily importable into TeXmacs AFAIK.
"And?"
"No damn cat, and no damn cradle.”
> Grape-Nuts actually contains neither grapes nor nuts. It’s made from wheat and barley. So, why is it called Grape-Nuts? As with many great emblems in history, there are two versions of the story. One says that Mr. Post believed glucose, which he called “grape sugar,” formed during the baking process. This, combined with the nutty flavor of the cereal, is said to have inspired its name. Another explanation claims that the cereal got its name from its resemblance to grape seeds, or grape “nuts.”
Does TeXmacs at least have macros? (That's what "macs" stands for in Emacs)
'A cocky novice once said to Stallman: “I can guess why the editor is called Emacs, but why is the justifier called Bolio?”. Stallman replied forcefully, “Names are but names, ‘Emack & Bolio's’ is the name of a popular ice cream shop in Boston-town. Neither of these men had anything to do with the software.”
His question answered, yet unanswered, the novice turned to go, but Stallman called to him, “Neither Emack nor Bolio had anything to do with the ice cream shop, either.'