alt Hacker News> LLMs are not brains and do not meaningfully share any of the mechanisms that animals or people use to reason or think
LLMs are a type of neural network. We know that’s how the human brain works, at least directionally. It’s going to be very upsetting to a lot of people when we figure out that the brain is just a neural network. Akin to when we found out that humans and apes evolved from a common ancestor.
Which I don’t understand—most of the people having this cognitive dissonance presumably do not have a theological worldview. And there’s not exactly a direct theological conflict here anyway. Nothing in any major religion I’m aware of ascribes any supernatural explanation to cognition. It’s a biological computational process, just like using ATP to power muscle fibers to move your limbs is a biological mechanical process.
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> It's going to be very upsetting to a lot of people when we figure out the brain is just a neural network.
You're assuming it's inevitable that the truth is what you expect while simultaneously stating that you have no proof of this yet, and then also claiming people who disagree with you have cognitive dissonance.
Unfortunately when it comes to language and intelligence the human population is exceptionally ignorant about it. I like Michael Levins work on intelligence at scale. We are kind of ok at seeing intelligence at human scale but it tends to fall apart after that. When you get to things like non-conscious intelligence humans are pretty bad at that too.
We could be (and are) encoding all kinds of behaviors in LLMs that are not at the word or token level. They are higher dimensional constructs. You won't see these things in the output of the prompt. A kind of subconscious (unstated in tokens) knowing that affects the output.
Neural networks barely share anything with actual neurons. A neuron itself is more of a "dumb" computer, so the whole is more like distributed computer system. Also, the cells next to neurons also have essential functionality.
Nonetheless, I also think it's an irrelevant implementation detail.
You need to do some research on just how complex real neurons are vs ANN, and just how profound our ignorance on the topic is.
We aren't resisting reality because of some theological belief, we just know the basics of neuroscience.
No, we don't. AI researcher Rojas wrote several chapters on the fact that you should not compare neural networks with the human brain.
"directionally"? Have you moved on from being a Trump influencer to an AI influencer?
"We know that’s how the human brain works, at least directionally."
That's an extreme misrepresentation. What happens inside a human neuron is still not properly understood, it's not as simple as a probability function. And the network itself is certainly not feed-forward. Of course LLMs draw inspiration from the brain, so there are some similarities. But because of the language-trick of using terms from medicine and cognitive science to describe LLM architecture, we see a lot of faulty reasoning from the so-called "rationalist movement".
https://www.nature.com/articles/s41467-026-72253-7