A conceptual guide to understanding Optimism’s experiment in digital democratic governance and retroactive public goods fundingIn his best selling book Sapiens: A Brief History of Humankind, Yuval Noah Harari argues that the unique human ability to transmit information about things that don’t really exist is what separates us from our closest primate ancestors. Large numbers of strangers are able to effectively cooperate by conjuring up and communicating shared abstract ideas such as religion...