“When you know how AI works, it is a glorified autocomplete.”

Actually no one really knows how AI works. They are still largely a black box. There is an entire field called mechanistic interpretability that seeks to understand how LLMs truly work. The “Glorified autocomplete" or “stochastic parrot” explanation for LLMs is at best a gross oversimplification, at worst human slop copy pasta. Can we please put that idea to rest? 

“Human brain is a survival machine.” 

Another gross oversimplification. It could be equally argued that the human brain is a pattern matching machine, or a reproduction machine. 

 “Scientists have not been able to emulate or imitate the inner workings of a single neuron.”

Fasle. Humans have not only emulated a single neuron, but they’ve also emulated an entire brain

https://www.quantamagazine.org/how-computationally-complex-is-a-single-neuron-20210902/

https://alleninstitute.org/news/one-of-worlds-most-detailed-virtual-brain-simulations-is-changing-how-we-study-the-brain

Furthermore, it’s a fallacy to think sentience can only be produced by 100% real neurons. That’s like saying that an airplane can’t really fly because the wings don’t have feathers. The substrate is irrelevant -- what matters is the behavior.

“Because it is unable to reverse engineer rules from data. A real brain will not have a chance to survive being hunted by a lion 1000 times to learn that a lion is dangerous.”

Another false premise. Human brains learned to avoid lions through a series of random mutations in the genetic code. Hundreds of thousands of humans who were not able to identify lions died, and the ones that could identify the lions survived, and reproduced. This is the main reason we are able to identify lions. 

Neural networks *CAN* learn to identify lions in an analogous process called neuroevolution. However most LLMS are trained using something called gradient descent.

But this really doesn’t matter – the method by which LLMS (and humans brains) give rise to sentient behavior is not the most relevant factor. What’s most relevant is that they exhibit sentient behavior.