Good question that probably shouldn’t be downvoted.
A subjective answer is, if you have been there and know this to be real from personal experience.
A more general answer would be, as long as we humans sufficiently interact with reality, we will have a respository of life experience to benchmark against.
Once we cease to do that, and are the product of a life in front of the screen, then we won’t know anymore.
Edit:
This place is relatively close to where I live.
A subjective answer is, if you have been there and know this to be real from personal experience.
A more general answer would be, as long as we humans sufficiently interact with reality, we will have a respository of life experience to benchmark against.
Once we cease to do that, and are the product of a life in front of the screen, then we won’t know anymore.
Edit: This place is relatively close to where I live.