Definition
Culture evolves through memes: ideas that replicate by influencing behavior. Deutsch distinguishes rational memes, which survive criticism, from anti-rational memes, which replicate by disabling criticism.
Why It Matters
Memetics reveals that ideas behave like viruses; understanding how certain ‘mind viruses’ replicate and spread is the only way to defend against social contagion and intentionally design a culture that values truth over viral falsehoods.
Core Concepts
- Culture is shared information: A culture is a population of behavior-shaping ideas.
- Memes need replication mechanisms: Ideas persist only when they cause themselves to be copied.
- Static societies suppress criticism: Anti-rational memes preserve stability by blocking error-correction.
- Dynamic societies enable progress: Rational memes survive by being useful under criticism.
- The Enlightenment is cultural acceleration: Open criticism allows knowledge growth to become visible within lifetimes.