“I’m Jaan. I’m the [cofounder] of Skype.” Originally from Estonia, Jaan Tallinn was a computer programmer who developed the peer-to-peer technology underpinning Kazaa, one of the first file-sharing services used to pirate music and movies in the early 2000s. He repurposed that technology for Skype and took a stake in the free calling service before getting a massive windfall when eBay bought Skype for $2.5 billion in 2005. Now he was sprinkling some of his winnings into other start-ups. When Tallinn heard Hassabis speak, his ears pricked up. He’d recently become passionate about the dangers of
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