Reasoning that users know more about the buildings they need than any architect could, he produced and validated a "pattern language" designed to empower anyone to design and build at any scale. Alexander is often overlooked by texts in the history and theory of architecture because his work intentionally disregards contemporary architectural discourse. As such, Alexander is widely considered to occupy a place outside the discipline, the discourse, and the practice of Architecture. In 1958 he moved from England to the United States, living and teaching in Berkeley, California from 1963. He is professor emeritus at the University of California, Berkeley. Now retired, he is based in Arundel, Sussex, UK.