Yep, so wait. What is Markup? Well if you happen to follow the links on this blog (and you really are safer if you don't), Wikipedia catagorizes...or lists it into 3 distinct groups:
What we are talking about here is a light language (sometimes called "DSLs") that is used to express oneself beyond text. Anyone not see the beauty in that? The user gets a free ride by using text documents that are generated with style, flare and that never expire (text documents wont be going out of style anytime soon).
Many of us, myself included have flocked to the lovable Markdown. Originally it was used to style documents for web viewing; however, now it has bleed into many text editors, iPhone and Android editors, and it is still fairly prevalent when it comes to web based writing. I have become so accustomed to the syntax, and incorporated its usage into so many applications that my brain now thinks on Markdown.
What Markup language do you think in?