AI is not the only innovation troubling the art world. An analysis of a related area – NFTs, or non-fungible tokens – according to the website dappGambl, found that 95% of more than 73,000 studied are now of “no practical use or value”, two years after the market peaked at $22bn (£18bn) in 2021. “This daunting reality should serve as a sobering check on the euphoria,” it said.