I'm surprised no one else has asked this question. It's not explained very well in the FAQ or site descriptions either.
I know many of you will think "LMGTFY", "RTFM", or "ask wikipedia", but I'd rather get the answer straight from the experts.
I'm so green I don't even know what to tag this question.
- what is it?
- what is it used for?
- who uses it?
- what is it in alternative to?
- how widespread is its use?
- does the average user type the language in as plain text or are there WYSIWYG tools?
And finally, a nice fun subjective bit to end things on a sour note. I guess this leads a bit back to the question regarding what TeX is the alternative to.
Is it a worthwhile technology to invest time in learning as a programmer/technology junkie who hates word processing apps with a passion? I'd rather write a wiki page than a letter in Word. But I don't know if that means I should switch from plain text to TeX or if that's like using a bazooka when all i need is a hammer?