I'm not sure how to interpret your comment. It could be

- a response to my comment saying that I am "illiterate" and cannot differentiate LLM output vs actual human comments (in that case I'm not sure what you're adding to the discussion here beyond a personal attack)

- a general comment saying it's getting harder for people in a position similar to us (i.e. tech / tech-adjacent who interact a lot with others who write with LLM assistance or via LLMs) to differentiate human/AI output.

I'll assume good faith and you mean the second. In that case maybe you can explain the "fundamental problem" you're referring to?