The puzzle for designers isn’t how people read. It’s how people think. And people don’t all think the same way. Ask a mathematician and an artist to describe the night sky and you’ll get two completely different answers. We need to ask whether one content format can best serve the needs of everyone on the spectrum of thought styles.
Finding better ways for users to cut and paste or find and replace isn’t the answer. We’re not talking about streamlining functions — we’re talking about breaking a 2000-year-old habit of writing on rectangular sheets of paper and replacing it with something completely new, something better suited to the way we think.