Here is the useful version, without the incense-cloud certainty: Psychedelics can make ideas feel novel, connected and cosmically important. That is not the same thing as making the ideas good. Creativity requires generation and selection; altered states may help the first while making the second hilariously unreliable.
Why the idea stuck
Studies and self-reports suggest psychedelics can alter divergent thinking, openness and associative processing, but results depend on timing and measurement. The useful boundary is not between wonder and skepticism; it is between a claim we can inspect and a story we merely enjoy repeating.
The cultural residue
During an acute experience, novelty and significance can be amplified, which can produce both brilliant material and absolute nonsense. There is no need to sand the mystery out of the subject. We can keep the mystery and stop pretending it already came with footnotes.
The version worth rescuing
Many artists use altered-state imagery without working while intoxicated; memory, sketching and later sober editing are part of the creative process. The practical question is what this changes for the reader, not whether it can be made to sound profound in a caption.
What the poster on the wall is really saying
The romantic myth of chemically guaranteed genius ignores craft—the boring thing that makes inspiration usable. What people report matters, but reports and controlled evidence answer different questions and should not be forced into the same box.
Put together, those pieces make a better map than the old yes-or-no framing. The subject remains interesting precisely because some parts are established, some are plausible and some are still genuinely unresolved.
The bit worth remembering
The strongest takeaway is not a slogan. It is a boundary: what we know, what we suspect, what people report and what culture has layered on top. Once those are separated, the subject gets clearer without becoming dull.
Keep going with Set and Setting: The Old Psychedelic Idea Science Keeps Rediscovering.
The visual side of the rabbit hole
This is also where the subject escapes the essay and becomes visual culture. Browse Visionary dreamscapes, the psychedelic art posters collection, or see The Psychonaut poster.