Human students who only learned some new words but have not (yet) even began to really comprehend a subject will just throw around random words and sentences that sound great but have no basis in reality too.
For the same sentence, for example, "We need to open a new factory in country XY", the internal model lighting up inside the brain of someone who has actually participated when this was done previously will be much deeper and larger than that of someone who only heard about it in their course work. That same depth is zero for an LLM, which only knows the relations between words and has no representation of the world. Words alone cannot even begin to represent what the model created from the real-world sensors' data, which on top of the direct input is also based on many times compounded and already-internalized prior models (nobody establishes that new factory as a newly born baby with a fresh neural net, actually, even the newly born has inherited instincts that are all based on accumulated real world experiences, including the complex very structure of the brain).
Somewhat similarly, situations reported in comments like this one (client or manager vastly underestimating the effort required to do something): https://news.ycombinator.com/item?id=45123810 The internal model for a task of those far removed from actually doing it is very small compared to the internal models of those doing the work, so trying to gauge required effort falls short spectacularly if they also don't have the awareness.
If we can reduce the precision of the model parameters by 2~32x without much perceptible drop in performance, we are clearly dealing with something wildly inefficient.
I'm open to the possibility that over parameterization is essential as part of the training process, much like how MSAA/SSAA over sample the frame buffer to reduce information aliasing in the final scaled result (also wildly inefficient but very effective generally). However, I think for more exotic architectures (spiking / time domain) these rules don't work the same way. You can't back propagate a recurrent SNN so much of the prevailing machine learning mindset doesn't even apply.
And don't forget the noise. If you look at the Anthropic papers it's clear from the examples they give that the dataset is still incredibly noisy even after extensive cleaning efforts. A lot of those parameters are being wasted trying to predict garbage outputs from HTML scraping gone wrong.
Somewhat apples and oranges given billions of years of evolution behind that human. GPT-5 started off as a blank slate.
"How could a telescope see saturn, human eyes have billions of years of evolution behind them, and we only made telescopes a few hundred years ago, so they should be much weaker than eyes"
"How can StockFish play chess better than a human, the human brain has had billions of years of evolution"
Evolution is random, slow, and does not mean we arrive at even a local optima.
Also consider that during training LLMs spend much less time on processing, say, TAOCP (Knuth), or SICP (Abelson, Sussman, and Sussman), or Probability Theory (Jaynes) than on the entirety that is r/Frugal.
20 thick books turn a smart teenager into a graduate with a MSc. That's what, 10 million tokens?
When we read difficult, important texts, we reflect on them, make exercises, discuss them, etc. We don't know how to make an LLM do that in a way that improves it. Yet.
You're right that we don't call those inherited thought patterns memories; we call them reflexes, emotions, region-specific brain functions, etc.
But it's indeed apples and oranges. There's no good way to estimate the information encoded by the GPT architecture compared to human DNA. We just have to be empirical and look at what the thing can do.
My brain only needs to get mugged in a dark alley by a guy in a hoodie once to learn something.
There are teenagers that win gold medals on the math olympiad - they've trained on < 1M tokens of math texts, never mind the 70T tokens that GPT5 appears to be trained on. A difference of eight orders of magnitude.
In other words, data scarcity is not a fundamental problem, just a problem for the current paradigm.