quantamagazine.orgEverything that's swept the world since the 2022 release of ChatGPT - "the AI economy"; data centers; chatbots acting as best friends, doctors, and mathematicians; talk of existential risk - it all starts, in some sense, with an intern in a University of Montreal lab named Dzmitry Bahdanau. It was 2014. The 23-year-old Belarusian, who had been coding competitively since he was a kid but hadn't…