^ ^ I'm going to have to agree moreso with what you just said, DrEIMiller. I mean, I'm also not discounting what anyone else has said, but I tend to feel intuitively that the "long-term effects" that a lot of people notice after taking large amounts of psychedelics were there all along. The psychedelic experience caused me to notice a lot of stuff, and now I can't go back to NOT noticing that stuff.
I find this concept to be comparable to when I taught myself to program in QuickBasic, when I was like 11 years old. After I got good at writing programming code, and was constantly playing games on my computer, I couldn't help but "deconstruct" (in my head) each game I would play. I would sit there and think about the program code that went into the drawing of the character, or I would wonder about all the different IF/THEN statements I was encountering in the playing of the game.... basically I was changed for life after "expanding my mind" to program code, and I could never enjoy computer games on the same level ever again.
Another similar analogy is about when I first started teaching myself to play guitar. I loved music, and it just made me feel good, like a drug. Then after a while, after my skills increased, I couldn't listen to music without deconstructing it into chords, and keys, and time signatures. It changed my life, and my perception of life, and I must deal with it forever until I die.... But it's not such a bad thing.
I feel the same things have happened from my psychedelic usage. It changed my life. I can't look at a tree without simultaneously seeing all the individual leaves, and the birds, and insects, and leaking tree sap. I no-longer just see a tree anymore.
People can call that HPPD if they want. I don't care. All I know is it hasn't negatively impacted my life in any way that I see all the minute details of existence now. In fact, quite the opposite, it has caused me to take things a lot more seriously. Some people might say I've gone overboard, because I can't walk down the street anymore without glancing down at my feet (through my peripheral vision) to make sure I don't step on any insects or small critters... Some might not understand that. But it's all subconscious to me. I'm not walking down the street Rainman-style saying "don't step on the ants, dont step on the ants, dont step on the ants...."
I just think psychedelics point out all the details that were there all along, and eventually you just can't NOT notice them. I can see how some people with a weaker mind might not be able to handle this....
Church