Do traditions still serve a purpose or should they be overhauled? We hear from Clay Shirky, writer and technology theorist, about why a number of industries – from the media to higher education – need to shape up. David Crystal, British linguist and author, explains that technology isn't changing language as radically as people fear. Then, Ruth Reichl talks about how food journalism is changing and why sitting down together for meals still matters. Plus, the story of a brightly colored treat invented by an accountant.