HTML is Dead, Long Live HTML

The DOM has become bloated with over 350 properties per node and 660 CSS properties, making it unsuitable for modern web applications. CSS's inside-out layout model creates complexity, while features like flexbox require speculative layout passes that can cause performance issues. The author argues for rethinking web UI from first principles, proposing simpler layout models that separate concerns and provide better primitives for building applications. Current proposals like HTML-in-Canvas are insufficient because they don't address the fundamental architectural problems of the web platform.