Researchers have shown that artificial intelligence (AI) could be a valuable tool in the fight against conspiracy theories, by designing a chatbot that can debunk false information and get people to question their thinking.

In a study published in Science on 12 September1, participants spent a few minutes interacting with the chatbot, which provided detailed responses and arguments, and experienced a shift in thinking that lasted for months. This result suggests that facts and evidence really can change people’s minds.

Chatbots can be biased, too.

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