The very nature of mathematics is such that we can't determine what is true and what is not, e.g. incompleteness, undecidability.
The very nature of your brain and its construction means that you hallucinate your reality and you can not determine what is [objectively] true. (cf. all of neuroscience)
I'd go as far as to claim that ChatGPT is far more reliable than the average person.
by "everyone" you mean "OpenAI"
the very nature of its construction means that it can't determine what is true and what is not
(and I'd quite like people to continue to regurgitate that it is inherently unreliable until this viewpoint hits the mainstream)