[kranke155]

During one particular episode I was convinced that the LSD-psychedelic world was actually what we now call Dark Energy. I was absolutely convinced of it.

At this point I have no idea, but it's an interesting hypothesis to your question. If dark energy exists, and we never figure out exactly what it is, is it possible that when we take LSD we're actually perceiving it, or some equivalent part of the universe that's non-visible?

I mean if we have non-visible dark energy and dark matter, who is to say that when we solve dark matter/energy, we don't again go back to figuring out that "another 90%" of the universe is detectable but unexplainable? What if the borders of our knowledge will always remain incomplete?