Explore the critical role of markup in enhancing web accessibility in this 33-minute JSConf talk by Hidde de Vries. Discover how the markup you write impacts the Document Object Model (DOM) and Accessibility APIs, with specific examples and optimization techniques for end users. Gain insights into the future of web accessibility as de Vries introduces the upcoming Accessibility Object Model (AOM) and its potential benefits. Learn from Hidde's expertise in web standards, browsers, and authoring tools to create a more inclusive web that prioritizes user needs.