Host Niall Ferguson compares the great network revolution of our time with one that happened 500 years ago – the Protestant Reformation. With the help of experts in network theory and precedents from history, Ferguson argues that the printing press had similar consequences for 16th-and 17th-century Europe as the personal computer and the Internet have for the world since the 20th century, leading to polarization and the dissemination of fake news.

• Niall Ferguson