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"The Cognitive Revolution" | AI Builders, Researchers, and Live Player Analysis

A Brief History of Biological and Artificial Intelligence with Max Bennett

Feb 7, 2024
Max Bennett, author of A Brief History of Intelligence, discusses the five major breakthroughs in evolution leading to human brains and cognition. Topics explored include the emergence of multicellular organisms, the evolution of brains, the role of dopamine and serotonin, trial and error learning, the development of the mammal brain, energy efficiency, and understanding primate abilities and brain function.
01:57:45

Episode guests

Podcast summary created with Snipd AI

Quick takeaways

  • Different breakthroughs in brain evolution led to the development of valence, reinforcement learning, mental maps, mentalizing, and language.
  • The basal ganglia and cortex played a vital role in enabling reinforcement learning and pattern recognition.

Deep dives

Breakthrough 1: Steering

Around 600 million years ago, the first biotariants emerged with the ability to navigate and pursue food using a simple algorithm called taxes navigation. This algorithm allowed the organisms to turn away from dangers and move towards food by detecting smell gradients. This breakthrough introduced the concept of valence or reward, where certain stimuli were classified as good or bad, directly mapping to a movement repertoire. From an evolutionary perspective, the brains of these organisms needed to consolidate into a nucleus to make trade-offs and integrate different sensory inputs. This breakthrough marked the beginning of the exploration of the world based on valence and the development of the ability to navigate and find food.

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