My eye was caught by a striking photograph in the most recent edition of Charles Arthur’s Substack newsletter Social Warming. It shows a narrow street in the aftermath of the “rain bomb” that devastated the region of Valencia in Spain. A year’s worth of rain fell in a single day, and in some towns more than 490 litres a square metre fell in eight hours. Water is very heavy, so if there’s a gradient it will flow downhill with the kind of force that can pick up a heavy SUV and toss it around like a toy. And if it channels down a narrow urban street, it will throw parked cars around like King Kong in a bad mood.

The photograph in Arthur’s article showed what had happened in a particular street. Taken with a telephoto lens from an upper storey of a building, it showed a chaotic and almost surreal scene: about 70 vehicles of all sizes jumbled up and scattered at crazy angles along the length of the street.

It was an astonishing image which really stopped me in my tracks. Not surprisingly, it also went viral on social media. And then came the reaction: “AI image, fake news.” The photograph was so vivid, so uncannily sharp and unreal, that it looked to viewers like something that they could have faked themselves using Midjourney or Dall-E or a host of other generative AI tools.

But it........

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