‘Growing pains’ declares The Spectator’s cover image this week, as our political editor Katy Balls, our new economics editor Michael Simmons, and George Osborne’s former chief of staff Rupert Harrison analyse the fiscal problems facing the Chancellor.

‘Dominic Cummings may have left Whitehall,’ write Katy and Michael, ‘but his spirit lives on.’ ‘We are all Dom now,’ according to one government figure. Keir Starmer’s chief aide Morgan McSweeney has never met Cummings, but the pair share a diagnosis of Britain’s failing economy. Identifying a problem is not, however, the same as solving it. As Rachel Reeves prepares her Spring Statement, ministers are bracing themselves for cuts in day-to-day spending as the public finances deteriorate.

Is austerity back? Michael and Rupert joined the podcast to discuss further. (1:02)

Biologist and Conservative peer Matt Ridley writes about the concept of sexual selection in the magazine this week, explaining that evolution might not just be driven by survival of the fittest but also by section by the hottest. This, he says, would explain some of nature’s most colourful oddities, particularly within birds, as outlined in his new book Birds, Sex and Beauty. Charles Darwin proposed this as a later part of his evolutionary theory, but it caused a rift amongst his contemporaries – why is it a controversial concept? And could it be true for other species such as humans?

Matt joined the podcast alongside David Puts, Professor of Anthropology and Psychology at Penn State University. (19:13)

Historian and author Hallie Rubenhold’s new book, Story of a Murder: The Wives, the Mistress and Dr Crippen, retells the famous murder case from the perspective of the women involved. Lisa Hilton declares it an ‘intellectual adventure’ in the lead book review in the magazine this week. But why do these cases continue to capture our imaginations, decades and even centuries later? And, whether as victims or as accomplices, what makes women such compelling subjects in historic cases like these?

Hallie joined the podcast alongside the historian and broadcaster Alice Loxton, author of Eighteen: A History of Britain in 18 Young Lives. (30:40)

Presented by William Moore and Lara Prendergast.

Produced by Patrick Gibbons.