*Some* people hallucinate. I don't do recreational drugs, nor do I take prescribed drugs, nor does anyone in my family line have genetic predisposition to it. Hallucination is not something I do, but it might be something you do.

If you seriously believe what you are saying, you would not drive a car, nor cross any road, because you could be hallucinating.

Wikipedia is not a credible source. They used to fail students for using it. Its founder says its been hijacked by politically motivated people who use it to quote each other. But since you like Wikipedia so much here you go:

https://en.wikipedia.org/wiki/Why_Most_Published_Research_Findings_Are_False