this post was submitted on 04 Dec 2023
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I’d give you two upvotes if I could.
We know how a neural network works in the brain. Unless you’re religious and believe in a soul, you’ve only got the reward model and any in-born setup left.
My belief is the consciousness is just the mind receiving a significant amount of constant input and reacting to it. We refuse to feel an LLM is conscious because it receives extremely little input (and probably that it isn’t simulating a neural network as large as ours, yet).
Neural networks are named like that because they're based on a model of neurons from the 50s, which was then adapted further to work better with computers (so it doesn't resemble the model much anymore anyway). A more accurate term is Multi-Layer Perceptron.
We now know this model is... effectively completely wrong.
Additionally, the main part (or glue, really) of LLMs is not even an MLP, but a "self-attention" layer. You can't say LLMs work like a brain, because they don't. The rest is debatable but it's important to remember that there are billions of dollars of value in selling the dream of conscious AI.
I'm with you that LLM's don't work like the human brain. They were built for a very specific task. But that's a model architecture problem (and being gimped by having only two dimension of awareness, arguably two if you count "self attention" another limiting factor in it's depth of understanding, see my post history if you want). I wouldn't bet against us making it to agi however we define it through incremental improvements over the next decade or two.
One of the things our sensory system and brain do is limit our input. The road to agi might involve giving it everything and finding the optimum set of filters, not selecting input and training up from that.
You'd need the baseline set of systems ("baby agi") and then turn it loose with goal seeking.
Yup, broadly agreed. I’m not saying “give it everything”. I’m sure regions would develop to simplify processing via filtering.
Actually, most models are already doing some form of filtering AFAIK, but I don't know how comparable it is to our sensory system. CNN's, for example, work the way our eyes work. The short of it is image data goes through a few layers, each node in the next layer collecting the aggregate data of several from the last (usually a 3x3) grid. Each of these layers has filters to determine the output of that node, which need to be trained to collectively recognize specific patterns in the data, like a dog. Source: lecture notes and homework from my applied neural networks class
This sounds like what I was learning 20-some years ago. The hardware and software are better (and easier!) now and the compute is so, so much better. I priced out a terabyte data server with some colleagues back then using off the shelf hardware: $10k CDN. :)
Edit: point being we are seeing things now that were predicted almost a century ago but it takes time to build all the infrastructure. That pace is accelerating. The next ten years are going to be wild.
I'm only finishing the class now and it's pretty wild to hear "We're only learning this model to help you understand a fundamental concept, the model itself is ancient and obsolete", and said model came out in 2018. Wild