Business ideas can be tested so this epistemic haze isn’t as much of an issue as you’re making it out to be especially when error rates are taken into consideration.

I have a friend who has business experience and has been getting verifiably helpful marketing advice from LLMs.

Sales are up. That’s all that matters for any set of instructions: does it lead to the expected end result.

These “do LLMs always hallucinate” questions are in the category of “do humans have a soul”. This is fine and dandy but the conversation doesn’t always need to go there as there is practical utility to discuss as well.