Share this on Twitter Share this on Facebook Share this on LinkedIn Share this on Sina Weibo Share this on Wechat Share this on LinkedIn Illustration by Mike McQuade Eight months before he killed himself, Zhang Shoucheng was giving a presentation about quantum computing, artificial intelligence, and blockchain encryption to a room full of Google employees. Dressed in a navy blue blazer, the theoretical physicist and Stanford University professor was engaging and confident as he used the Dan Brown novel Angels and Demons to help explain Paul Dirac’s 1928 theory of antimatter. Zhang was known for scientific theories and discoveries that could revolutionize computer technology, and he drew inspiration from Dirac’s story. “At the time,” Zhang said of Dirac’s theory, “no one believed him, but do you know what he said? He said, ‘My equation is so beautiful, you guys simply just go look for it.’” Evidence of antimatter was discovered five years later in cosmic-ray radiation, making Dirac’s equation, Zhang told the audience, “one of the greatest predictions of all humanity — that something conceived of beSubscribe or log in to read the rest.