Thanks for sharing these talks!  - I can get my head around narrow AI: It's domain specific, it solves particular sets of problems. How would you define AGI though? Is it quantitatively different, meaning it's just the sum total of many narrow AIs? Or is there a difference in quality? If so, what's the extra ingredient that distinguishes it from narrow AI? I feel like these terms are getting thrown around a lot, but I'm missing precise definitions.