Why the Roman Empire collapsed | Lars Brownworth and Lex Fridman

The conversation explores the collapse of both Western and Eastern Roman Empires, with Brownworth arguing that the Eastern Empire's decline specifically began after the death of Basil II in 1025. Under Basil II, the last ruler of the Macedonian dynasty, the empire had reached its peak power, wealth, and territorial extent since Justinian, with remarkable achievements including 100% literacy in Constantinople and courtiers required to memorize Plato's works. However, after Basil's death, the powerful Byzantine bureaucracy became convinced they could rule without strong emperors and deliberately selected weak rulers. This bureaucratic overreach led directly to the catastrophic Battle of Manzikert in 1071, where Turkish forces defeated the Byzantine army and conquered Anatolia, the empire's heartland and source of troops, taxation, and food. Once this core territory was lost, recovery became impossible. Brownworth notes that the First Crusade was actually an attempt by Emperor Alexius to recover Asia Minor rather than focus on Jerusalem. The discussion touches on broader themes of imperial decline, including how success can breed inflexibility, bureaucratic stultification, and the weight of tradition. Despite these ultimate failures, both speakers acknowledge the remarkable longevity of the Roman state across 2200 years, maintaining continuity through multiple periods of revival while facing constant warfare on all frontiers.