The post makes a good point about the distinction between two types of text - symbols and human text. Sadly, this is made very complex in our world through the

The post makes a good point about the distinction between two types of text - symbols and human text. Sadly, this is made very complex in our world through the introduction of the markup (and markdown) languages which mix text targeting both machines and humans. As long as you're having to work with embedded structuring or formatting codes, woe betide you. You'll have to deal with script injection, sql injection and what not.