Between the 15th and 18th centuries there was an orgy of superstitious violence across Europe as 50,000 people, overwhelmingly women, were executed for witchcraft. England and Scotland saw more than their share of the action, hanging almost 5,000 people for supposedly consorting with the devil. But unlike its neighbours, Wales stands out for having a far less bloody history, with only five people hanged for witchcraft.

According to historian Mari Ellis Dunning, despite a strong belief in the supernatural in Wales, accusations of witchcraft rarely reached the courts. And when they did, they almost never resulted in punishment. Dunning explains the rather more reasonable approach taken by the Welsh people.

There’s been an explosion in discussion about AI and its future impact on society – is it a force for good that will create faster, more efficient systems or a catalyst for the breakdown of trust and responsibility needed for a functioning society? Tim O'Reilly, Mariana Mazzucato, Ilan Strauss and Rufus Rock come together to argue in this piece that leading scientists, technologists and philosophers have historically made “spectacularly terrible guesses” about how innovation will evolve – including Einstein. Instead of fixating on the unknowable risk posed by AI, they suggest we focus on the very evident misalignment of economic incentives and society’s interests that currently plague the big tech companies.

The drug war between cartels and the government in Mexico has devastated the country. But a new study reveals a surprising truth: the roots of the violence lie not just in criminal activity, but in the unintended consequences of government policy on both sides of the border.

Meanwhile, a new exhibition sheds light on John Alec Baker, who spent years documenting the almost extinct peregrine in Essex. Baker’s observations and evocative prose not only captured the beauty of the endangered bird, but also served as inspiration for other environmentalists, including Sir David Attenborough and Chris Packham.

Siriol Griffiths

Wales Editor

A group of witches offering wax effigies to the Devil in a 17th-century woodcut. Pictorial Press Ltd/Alamy

Why so few witches were executed in Wales in the middle ages

Mari Ellis Dunning, Aberystwyth University

Only five witches were executed in Wales, while thousands were sentenced to death in Scotland and England.

Shutterstock/Chaosamran_Studio

To understand the risks posed by AI, follow the money

Tim O'Reilly, UCL; Ilan Strauss, UCL; Mariana Mazzucato, UCL; Rufus Rock, UCL

Unlike the risks from AI’s capabilities, the economic risks from new technologies are knowable and can be mitigated

Joebeth Terriquez / EPA

How the ‘Mexican miracle’ kickstarted the modern US–Mexico drugs trade

Nathaniel Morris, UCL

The modern Mexico–US drug trade is rooted in the unintended consequences of government policy on both sides of the border.

Photo: Doug Atfield. Special Collections, Albert Sloman Library, University of Essex/Copyright Estate of J.A. Baker

Meet J.A. Baker – the influential nature writer you’ve probably never heard of

Sarah Demelo, University of Essex

John Alec Baker’s 1967 novel, The Peregrine, recounts the story of a bird over ten winters, but his archive is the story of a very private man.

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