Rich text editing is a foundational interaction in productivity software. Slim joins Mark and Adam to explain how rich text is more than just bold and italics for prose, but also includes math equations, diagrams, slideshows, and sheet music. Their discussion includes WYSIWYG versus markup languages for end users; how block-based editors change our understanding of rich text; and why Pandoc is Slim’s favorite piece of software. Plus: how to choose the best wagon in Oregon Trail.