Connectivism is a learning theory developed by George Siemens in 2004 that argues traditional learning theories do not adequately address learning in today's digital world. The key aspects of connectivism are: - Learning and knowledge are distributed across diverse information networks and connections formed by people. - Learning involves connecting specialized information sources and involves decision making about what to learn and how to learn it. - Technology has changed how we live, communicate and learn, so learning theories need to account for this impact of technology.