Diffusion policy: teaching AI to teach itself

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  The Economist Hello, this is Alok Jha,

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  host of Babbage, our weekly podcast on science and technology.

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  Welcome to Editor's Picks.

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  We've chosen an unmissable article from the latest edition of The Economist.

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  Please do have a listen.

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  a group of robots are busy cooking.

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  There is nothing special about that.

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  Robotic chefs have been around for a while,

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  but these robots are more proficient than most,

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  flipping pancakes, slicing vegetables, and making pizzas with ease.

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  The difference is that instead of being laboriously programmed to carry out their tasks,

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  the Cambridge robots have been taught only a basic set of skills.

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  Using the wonders of artificial intelligence or AI,

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  they quickly improved upon those skills to become far more dextrous.

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  Despite their extraordinary culinary capabilities,

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  these robots are not destined for a career in catering.

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  If you give a robot the confidence to work in a kitchen,

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  it will also have the confidence to work in a factory or a person's home,

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  says Gil Pratt, Toyota's chief scientist.

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  Cooking involves lots of complex tasks,

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