When it comes to the chips used in artificial intelligence, one firm has the market locked up. We look at the rivals minded to steal Nvidia’s crown. The death toll from the war in Gaza has been disputed since the start; we cut through the numbers to find a reliable estimate (10:19). And our correspondent examines the great rematches of fiction (16:07).

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Artificial intelligence is already making its mark in health care—but new, bigger, models promise to improve how patients access services, help doctors spot diseases faster and transform how medical research is done. In the first of two episodes on the potential of AI in health care, we ask: how will patients benefit from the technology behind ChatGPT?

Host: Alok Jha, The Economist’s science and technology editor. Contributors: Natasha Loder, The Economist's health editor; Gerald Lip of NHS Grampian; Peter Kecskemethy of Kheiron Medical; Pranav Rajpurkar of Harvard Medical School; Hugh Harvey of Hardian Health.

Want to learn more about generative artificial intelligence? Listen to our series on the science that built the AI revolution.

Transcripts of our podcasts are available via economist.com/podcasts.

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Domestic divisions are already complicating the daunting task William Lai Ching-te has set himself: strengthening Taiwan while maintaining its ambiguous geopolitical status quo. With more and more big firms choosing to stay private—with good reason—the stockmarket is shrinking (09:37). And dating apps are putting an end to the lonely-hearts advertisement (16:47).

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