Comment Re:"the headache of memorizing arcane HTML tags" (Score 4, Interesting) 58
It's a lot easier to remember that your asterisks will be converted.
For neurotypical people not trained in programming languages, it actually is easier to use 'symbols' for *emphasis*, because they work as augmenters of the written text (i.e. they take the same role as punctuation, parentheses, question marks and exclamation signs), instead of changing the reading processing mode into a totally different mental context (i.e. as code tags instead of natural text with markings). Markdown was a clever hack to get that natural reading experience to digital text formatting.
For the untrained eye, <i> and <b> look more like alien ships from an Invaders videogame that somehow got stuck in the middle of one paragraph, not as helpful commands to change the behaviour of the computer; you need to have a quite thorough understanding of how a computer processes digital text in order to understand those tags, which is simply not needed to use markdown.