Many people on HN think that, for instance, GPT-3 and that family of works does not represent any real advancement and continually disparage and poke holes in the output of the model. These threads are upvoted to the front page occasionally.
Lots of people think it's essentially a dead end as it's missing some kind of 'secret sauce' that the brain has and which we are just too dumb to figure out.
It's a lack of appreciation for how complicated the brain really is. The "secret sauce" is "it's really frickin' complex and we don't understand a fraction of it". It's like comparing an abacus to the latest AMD or Intel CPU and saying, "The abacus is a dead end because it's obviously missing that "secret sauce" that this magical computing oracle is doing"