Marcus Hutter: Universal Artificial Intelligence, AIXI, and AGI | Lex Fridman Podcast #75
2,270Marcus Hutter is a senior research scientist at DeepMind and professor at Australian National University. Throughout his career of research, including with Jürgen Schmidhuber and Shane Legg, he has proposed a lot of interesting ideas in and around the field of artificial general intelligence, including the development of the AIXI model which is a mathematical approach to AGI that incorporates ideas of Kolmogorov complexity, Solomonoff induction, and reinforcement learning.
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EPISODE LINKS:
Hutter Prize: http://prize.hutter1.net
Marcus web: http://www.hutter1.net
Books mentioned:
- Universal AI: https://amzn.to/2waIAuw
- AI: A Modern Approach: https://amzn.to/3camxnY
- Reinforcement Learning: https://amzn.to/2PoANj9
- Theory of Knowledge: https://amzn.to/3a6Vp7x
OUTLINE:
0:00 - Introduction
3:32 - Universe as a computer
5:48 - Occam's razor
9:26 - Solomonoff induction
15:05 - Kolmogorov complexity
20:06 - Cellular automata
26:03 - What is intelligence?
35:26 - AIXI - Universal Artificial Intelligence
1:05:24 - Where do rewards come from?
1:12:14 - Reward function for human existence
1:13:32 - Bounded rationality
1:16:07 - Approximation in AIXI
1:18:01 - Godel machines
1:21:51 - Consciousness
1:27:15 - AGI community
1:32:36 - Book recommendations
1:36:07 - Two moments to relive (past and future)
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