In a review article in PNAS Nexus, Claire Robertson and colleagues explore how human morality, which evolved in the context of small in-person groups, functions on the internet with over five billion users. In a review article in PNAS Nexus, Claire Robertson and colleagues explore how human morality, which evolved in the context of small in-person groups, functions on the internet with over five billion users. Social Sciences Political science Phys.org – latest science and technology news stories