[psytrancefan]

I think it probably correlates with low openness. If you are low in openness, I could see psychedelics having long lasting effects on a person's personality. I have never found the effects to be lasting at all either but my openness is already at 11. If anything, I probably need less.

I wouldn't do Ketamine because I know for a certain type of person, they instantly fall in love with "spiritual heroin". I know almost for certain I am that type of person.