https://www.quantamagazine.org/a-math-theory-for-why-people-hallucinate-20180730/
Druggos please confirm whether or not youve see them. 
The paper is called What Geometric Visual Hallucinations Tell Us about the Visual Cortex.
Your brain does secret coordinate transforms it turns out
Jump in the discussion.
No email address required.
Upper left is my default for too much weed. Acid is fractal lions and smeared stuff mostly.
Jump in the discussion.
No email address required.
More options
Context