Could you explain? A genuine mystic revelation would mean, in my opinion, something that cannot be explained by the laws of physics. Acute schizophrenia would mean the exact opposite.

On the other hand if we broaden the meaning of mystic revelation, a "light" mystic revelation, like being in awe in front of nature for example, would have nothing to do with acute schizophrenia.

William James suggested a criterion to tell these two apart.

Its not new. its been a question for centuries, probably millennia.

A great insight? Where is the insight if there is no way to know?

Objectively speaking, you end up exactly the same way you started.

It is as if I said: oh, the app hangs: infinite loop or crash and frozen? It is one or the other, but never both. Yet you do not know if there is no way for further inspection.