In The Social Organism, Luckett and Casey offer a revolutionary theory: Social networks – to an astonishing degree – mimic the rules and functions of biological life. In sharing and replicating packets of information known as memes, the world’s social media users are facilitating an evolutionary process just like the transfer of genetic information in living things. Memes are the basic building blocks of our culture, our social DNA. To master social media – and to make online content that impacts the world – you must start with the social organism.