# Richard Klein Up: [[Consciousness, Neural Transduction and Human Origins]] Paleoanthropologist at Stanford ⚠️. Leading proponent of a sudden "human revolution" about 50,000 years ago. ## Relevance - Proposed that a genetic or neural change around 50 ka triggered modern behavior (*The Dawn of Human Culture*, 2002, with Blake Edgar ⚠️ from memory). - The "50,000-year explosion" behind the post and NTT comes from this view, which most archaeologists now reject in its strong form.