Two readers, one page. The agent never sees the surface you designed; it reads the structure underneath. AI assisted.The semantic structure screen readers have used for decades now also decide whether ChatGPT, Claude, Gemini, Grok, and Perplexity can read your page at all.In 2016 I had a series of calls with the federal government’s top accessibility expert as the leader of a design team, and I learned more in those conversations than in years of reading specifications. I had already been building accessible web applications since 2006, chasing Level AAA when most teams would not commit to AA. I learned so much, and it’s always been top of mind.The lede even back then: accessibility matters, and we should pay attention to it.For a long time that work served a small, often-overlooked audience you defended on principle alone.That argument just changed just got larger.Your website has a...