XML is not a language in the sense of a programming language any more than sketches on a napkin are a language.

Programming today is the opposite of diamond mining. In diamond mining you dig up a lot of dirt to find a small bit of value. With programming you start with the value, the real intention, and bury it in a bunch of dirt.

HAM radio is very inexpensive, it is nearly unlimited and free to use. The only limitation is that you can only talk for five minutes to any given person because the station gets out of range within that time.

XML is not a language in the sense of a programming language any more than sketches on a napkin are a language.

Basically, most good science in space flight has to do with the behavior of the human body in space. That is where we are lacking info, and where info can only be obtained by flying in space.