Engineers have spent decades trying to create functional humanoid robots, which look and act like humans. But these machines, which combine complex mechanics with generative artificial intelligence models, like ChatGPT, are finally coming-of-age. Are they good enough to sustain a human-like conversation, though?

Host Alok Jha travels to Cornwall to meet Ameca, a robot made by Engineered Arts. Will Jackson, the company’s boss, explains how the technology behind Ameca works and the advantages of having robots that look and behave like people. Plus, Paul Markillie, The Economist’s innovation editor, assesses the state of the field and how to prepare for the rollout of humanoid robots. 

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Alcohol is the most widely used drug in the world, but it is also the cause of three million deaths each year and has been linked to many other long-term illnesses. In addition, the loss of productivity due to hangovers has an outsized impact on some economies. People still want to have a good time, though, and innovators are dreaming up ways to enjoy the effects of alcohol, without the costs.

Jason Hosken, our producer, visits Brixton Brewery to speak to co-founders Jez Galaun and Xochitl Benjamin about the rise of alcohol-free beer. Natasha Loder, The Economist’s health editor, investigates the herbal drinks that claim to mimic the effects of alcohol. Plus, David Nutt, a professor at Imperial College London explains how alcohol affects the brain and why his synthetic alcohol could reduce excessive drinking and end hangovers forever. 

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Three firms are racing to become the first private company to land on the Moon. The potential commercial opportunities range from mining lunar resources to establishing a human base with communications infrastructure. But the commercialisation of the Moon raises tricky questions about who owns Earth’s closest neighbour.

Steve Altemus, CEO of Intuitive Machines, explains what he hopes his company’s missions will achieve, while Ian Jones of Goonhilly Earth Station describes how the blossoming private space sector is boosting the economy. And Dhara Patel, an expert at Britain’s National Space Centre, explores how the international community has attempted to govern space. Alok Jha hosts with Tom Standage, The Economist’s deputy editor.

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Digital fakery, from the latest generation of deepfakes to lower-tech trickery, threatens to erode trust in societies and can prevent justice from being served. But how can technology be used to both detect deepfakes and authenticate real images?

Patrick Traynor, a professor at the University of Florida, explains a novel method to expose audio generated by artificial intelligence. Ilke Demir of Intel Labs demonstrates how to spot visual fakery by analysing colour changes in the face. Plus, The Economist’s Benjamin Sutherland investigates the flipside of deepfakes: how to prove that footage is real. And Wendy Betts of eyeWitness to Atrocities explains how her technology is being used as evidence for war crimes. Alok Jha hosts.

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SpaceX’s Starlink was designed to provide off-grid high-bandwidth internet access to civilians. But the mega-constellation of satellites has become more famous for its role in Ukraine. In 2022, it became vital to the country’s war effort, revealing the military potential of near-ubiquitous communications. Now, with more companies and countries piling in to build their own mega-constellations, a new space race is on.

Shashank Joshi,The Economist’s defence editor, and Tim Cross, our technology and society editor, examine how the satellites have saved Ukraine and changed warfare. Aaron Bateman of George Washington University explores the military history of satellite communications. And Herming Chiueh, Taiwan’s deputy minister for digital affairs, explains why the threat from China has led the island to pursue its own Starlink-like satellite system. Alok Jha hosts.

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Since covid-19 emerged three years ago, mRNA vaccines have taken the world by storm. How will they keep up with new variants of the coronavirus, and where does the mRNA revolution go from here?

Natasha Loder, The Economist’s health policy editor, talks to Ugur Sahin, the co-founder of BioNTech, whose covid vaccine changed the course of the pandemic. They consider the development of a universal coronavirus vaccine, and the other infectious diseases that will be targeted by mRNA jabs. Plus, the immunologist explains how mRNA technology can treat illnesses such as cancer, and his expectations for the technology in 2023. Alok Jha hosts.

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ChatGPT is just one example of a new type of artificial intelligence, which could become the next major general-purpose technology. This week, we revisit one of our favourite episodes of 2022, which explains why "foundational AI" promises to be so transformative.

The Economist’s Ludwig Siegele explains why ChatGPT has been taking the world by storm, and why foundation models, or generative AI, could end up having an economic impact similar to that of electricity. Jack Clark of Anthropic AI tells us about the new AI ecosystem that is emerging. Reeps One, a beatboxer, explains how he uses machine learning to compose music. And Kate Crawford, the author of “Atlas of AI”, considers why the technology is proving so controversial. Alok Jha hosts.

Babbage will be published every Wednesday from January 4th 2023.

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In 2022, the Nobel prize for physics was awarded to a trio of scientists for their work on the fundamentals of quantum mechanics. This week, host Alok Jha asks one of the laureates, Anton Zeilinger, how he proved Einstein wrong and how his research into a phenomenon called quantum entanglement can help make sense of the universe. Plus, can “quantum teleportation” usher in a new era of technology? 

Anton Zeilinger is a physicist at the Austrian Academy of Sciences and professor emeritus at the University of Vienna.

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Soon after the pandemic began, another health crisis started to emerge. Long covid now affects millions of people around the world. But finding the causes of the condition—and how to treat it—has been a challenge. Three years after the SARS-CoV-2 virus was first detected, are scientists any closer to understanding long covid?

Natasha Loder, The Economist’s health policy editor, explores the latest research into the condition, and catches up with Tom Stayte, a patient we met in 2020. Jason Hosken, our producer, visits Britain’s first long-covid clinic at University College London Hospital. Melissa Heightman, the team’s clinical lead, explains how to treat symptoms. Plus, we ask whether the hunt to solve this medical mystery could have implications for other chronic conditions. Alok Jha hosts.

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When Russia invaded Ukraine, for the first time ever, two mature cyber-powers began to fight over computer networks in wartime. But while Russia’s cyber-war may have been intense, its impact has been modest. Has the country’s cyber prowess been overrated?

The Economist’s Benjamin Sutherland describes the cybercriminals joining the war effort in Ukraine. Paul Chichester, operations director at the UK’s National Cyber Security Centre, analyses why Russia hasn’t had more success in the cyber domain. And Shashank Joshi, our defence editor, finds lessons from Ukraine on cyber warfare more broadly. Alok Jha hosts.

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