You can reduce hallucinations with rules and guardrailes for sure.

And Anthropic clearly shows that we can reduce hallucination in models. Progress is made which you can see in benchmarks.

And at the end of the day, a normal human being doesn't 'hallucinate' but 'missunderstand' things or just doesn't know what they are missing.

A LLM doesn't has to be perfect, it just has to be cheaper with the min. same quality as a human.

So why are you screaming into the void? Because LLM leave deterministic world? A lot of people don't even life in that world anyway.