University of Pennsylvania Carey Law School Penn Law: Legal Scholarship Repository Faculty Scholarship at Penn Law 12-12-2018 Paul Baran, Network Theory, and the Past, Present, and Future of Internet Christopher S. Yoo University of Pennsylvania Carey Law School Follow this and additional works at: https://scholarship.law.upenn.edu/faculty_scholarship Part of the Computer and Systems Architecture Commons, Computer Law Commons, Digital Communications and Networking Commons, Information Security Commons, Internet Law Commons, Law and Economics Commons, OS and Networks Commons, Science and Technology Law Commons, and the Systems Architecture Commons Repository Citation Yoo, Christopher S., "Paul Baran, Network Theory, and the Past, Present, and Future of Internet" (2018). Faculty Scholarship at Penn Law. 2040. https://scholarship.law.upenn.edu/faculty_scholarship/2040 This Article is brought to you for free and open access by Penn Law: Legal Scholarship Repository. It has been accepted for inclusion in Faculty Scholarship at Penn Law by an authorized administrator of Penn Law: Legal Scholarship Repository. For more information, please contact
[email protected]. Paul Baran, Network Theory, and the Past, Present, and Future of the Internet Christopher S. Yoo* Paul Baran’s seminal 1964 article “On Distributed Communications Networks” that first proposed packet switching also advanced an underappreciated vision of network architecture: a lattice-like, distributed network, in which each node of the Internet would be homogeneous and equal in status to all other nodes. Scholars who have subsequently embraced the concept of a lattice-like network approach have largely overlooked the extent to which it is both inconsistent with network theory (associated with the work of Duncan Watts and Albert-László Barabási), which emphasizes the importance of short cuts and hubs in enabling networks to scale, and the actual way, the Internet initially deployed, which relied on a three- tiered, hierarchical architecture that was actually what Baran called a decentralized network.