[atleastoptimal]

The apparent shallowness IMO is due to the lack of long term memory and limited context. In terms of depth, the depth of the human mind is fairly limited. Put any average human to task on any creative endeavor and it's surely a regurgitation of things they've seen. The high standard of true creativity that people hold LLM's to is only a capability of a small minority of humans.

I'd wager it's far more likely 5 years than 50 LLMs get to the full depths all humans are capable of. Simply compare the state of LLMs today vs 2018.