[root_axis]

There are quite a few motivations for this, but the primary advantage is that it causes markup elements to become first-class entities within your code, allowing your view composition to be checked by the compiler as well as allowing you to design your own reusable markup elements that fold up application level concerns. It's also nice when your views have lexical access to your application state variables so you don't have to pre-render a big string template and interlace it with an explicit map of serialized parameters - it's very nice when the compiler lets you know a view simply cannot display the type of data you're trying to shove into it rather than rendering a broken looking page.