Some of this sounds like it really complicates the layout code, but I'm not sure I'm reading it right. Take, for example, a standard dialog template. If I have a large number of dialogs for editing user/products/whatever, all with the same basic `<div><label><span><input>` layout, it sounds like he's saying that I can't rely on the dialog template to format my labels, I have to apply the `dialog-label` class to every label in every dialog. Almost every tag in my doc will have a class attribute, since I can never rely on selectors to apply the right styling. In general, selectors are almost never used and classes do all the work.

Am I reading this right? Or are templates an exception? I need to re-read the template/component thing a few times to figure out exactly what nomenclature he's using here. But in general, I'm not sure I see the advantage of `.modal__form__item` vs. `.modal .form .item` except that the first is exponentially more verbose in the html.