> No Language model is yet even close to the scale of the human brain
If GPT-4 has 100 trillion parameters, it has as many parameters as the human brain has synapses. Synapses are a lot simpler than parameters; they're digital. A single neuron needs many synapses, all of roughly equal weight, emitting many pulses over a short time in order to convey a single weighted value.
On top of that, you may have heard that the human brain does a lot of things besides writing. You subtract the motor cortex, the visual and limbic systems etc... a 100 trillion parameter model is unambiguously larger than the language processing portions of the human brain.
> Brains don't start at 0. Evolution, dna/rna etc. There's obviously some pre disposition for language learning in humans but that alone isn't enough ground for a "universal grammar"
The human genome is 24 gigabits long. It's negligibly small compared to a language model.