My theory on this is that human minds parallel process and are in effect quantum computers.  LLMs are basically very fast single thread CPUs in comparison.  So while blazingly fast, they can't compete with our brains yet in areas of experiential "common sense".  I think with breakthroughs in quantum computing this will change, but the path there will be volatile. 

If the universe is quantum, so are we. We also haven't given LLMs embodiment yet.  Imagine an infant LLM in a Tesla bot body.  Able to learn via interaction with the natural world - just like a human baby does. I believe our minds are not just 'in our heads" but rather extend out into the physical world.  This is why children count on their fingers for example. This is also why creativity skyrockets in the "big city" versus in the "sticks".  Our cities are basically super computers comprised of human brains/minds. 

One other point that I think is overlooked. If a person lives 100 years, that 100 years of life experience is lost when they pass.  Not so with digital brains. Compound that with exponential intelligence growth based on cycles.  Imagine a brain "living" for 1,000 years in a synthetic world that happens in less than a nanosecond of human time. This might not make sense at first blush.  I grokked this when I learned that since Bitcoin trades 24/7/365, it has been around longer than the entire US stock market in actual time (real time) in only 16 years, since the stock market closes every day and is closed on weekends. So time is relative, just like Einstein said.