Deja Vu: Did a secret book fuel a witch-hunting frenzy in Europe?

The latest episode of Deja Vu, a programme from the Qatar-based news network Al Jazeera, looks at how new ways of spreading information have helped conspiracy theories take hold. The episode's title asks whether a secret book fuelled a witch-hunting frenzy in Europe.

According to the channel's description, the programme traces this pattern through history. It starts with the witch-hunts in Europe and arrives at present-day artificial intelligence. The comparison suggests that concern about the influence of new media on public beliefs is not unique to the current era.

The source gives no further detail about the episode, such as the name or author of the book, or specific historical events covered. This summary therefore describes only the episode's theme and approach, not its conclusions.