Elon Musk's Brain Model: Limbic System, Cerebral Cortex, and a Tertiary Layer of Digital Super-Intelligence

The discussion posits a two-layered model of the human brain: a primal "monkey brain" (limbic system) responsible for impulses and basic drives (hunger, anger, sex), and a "computer" (cerebral cortex) that rationalizes and attempts to satisfy these primal urges. A key argument is that the limbic system, not the cortex, primarily steers human behavior, with the cortex serving to narrate and justify the actions driven by the more primitive brain. The intelligence difference between these two layers is described as "gigantic," with the limbic system having little to no comprehension of the cortex's complex operations.

A crucial distinction is made between the perceived control and the actual influence within the brain. While one might assume the "smart" cortex controls the "dumb" limbic system, the argument presented is the inverse: the limbic system dictates the cortex's activities. This dynamic is exemplified by behaviors like sex without procreation, where immense cortical computation is expended solely to satisfy limbic desires, highlighting the limbic system's powerful, often irrational, influence over higher cognitive functions. The human brain is also characterized as a biological neural net, setting the stage for its interaction with digital neural nets.

The conversation explores the potential for machine learning and natural language processing to facilitate two-way communication between digital systems and the brain, aiding in understanding and controlling functions like movement and visual processing. This suggests a future where AI, as a digital neural net, could interface directly with the biological neural net of the brain. The idea of a "tertiary layer" of digital super-intelligence is introduced, which would be vastly more intelligent than the cortex but, drawing parallels from the limbic-cortex coexistence, could still integrate peacefully with the existing biological layers.

The broader implication is an optimistic vision for human evolution through technological integration. The peaceful, albeit hierarchical, coexistence of the limbic system and cortex serves as a hopeful precedent for the integration of a digital super-intelligence. This tertiary layer is envisioned not as a replacement, but as an augmentation that could bring humanity "along for the ride" into a new era of vastly expanded intelligence, suggesting a symbiotic future where biological and artificial intelligences merge and co-evolve in a "benign manner."

"we've got like a monkey brain with a computer stuck on it that's that's the human brain"

"the cortex is the part that tells the story of the whole thing so we convince ourselves it's it's more interesting than just the monkey brain"

"surely the really smart thing should control the dumb thing but actually I don't think it rolls this one thing"

"we're a neural net and that you know AI is basically neural net so it's like digital neural net will interface with biological neural net"

"the difference in intelligence between your cortex and limbic system is gigantic"

"your allylic system really has no comprehension of what the hell the cortex is doing"

"a massive amount of thinking like truly stupendous mal thinking has gone into sex without purpose without provocation without procreation"

"there's a tertiary layer which will be digital super intelligence and I think there's room for optimism"

"that that will be vastly more intelligent than the cortex but still coexist peacefully and in the end of an EIN manner with the cortex and limbic system"