Scratch what darkblood said, he has no idea how to respond intelligently to your question because he hasnt actually tried what your asking. (no offense to darkblood im sure he is intelligent... your personal bias about drugs isnt really called for though in an open forum discussion)
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As for me, the only real success I have had has been while high. Now let me explain, Ive gotten a little faster normally, I can skim a hell of a lot faster, and ive learned a lot of *good* theory. But I have actually had results while high. (im sure ill reach the point where I get great results naturally eventually).
Although the results I have gotten while high arnt the kind of results I want exactly.... In certian *states* I am able to relax and pull up text I have photoread. I presume its exactly what a photographic memory would look like...
Problem with this is my *state* varys up and down and I loose focus after a few minutes. And once Ive lost focus I fool myself into not being able to bring it back into focus again untill I stop caring. Then like 5 minutes later its back as soon as I forgot about trying.
I dont think this is how the system is suppose to work at all.... but Im impressed none the less. I've had my friends write down what I read. Was 99% accurate (grammer ect. The reason i say 99% is when I try to start reading out loud what im reading, sometimes that in itself causes me to loose focus and ive messed up the last bit right before loosing it) .
I was able to transcribe threw a friend 2 paragraphs out of the Solaris 7 System Admin Exam Cram. That was my biggest success so far.. (seeing as I hadnt actually read that half of the book yet, just photoread)
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The bottom line to all of this is, while I dont think drugs are the *key* or even the right path to go with photoreading. It has proven to me beyond all shadow of a doubt that the pages I photoread are somewhere in my head as "photos" perfectly preserved waiting to be tapped.
Has anyone else had similar experience?
BTW While all this was neat, I will admit I think weed hampers your ability to photoread after the fact (for days!)
So I wouldnt advise becoming a pothead to expediate your PRing. But if you have a chance to try it and your not against that sort of thing, a one time deal will infact increase your belief in the entire system.
If your going to try it my only advise is, stay serious, use the best, and have someone sober to verify that something actually did happen. For best results, complete silence and closed eyes. Let your mind start generating random pictures. (of whatever) and then think about the book you lost pred.
My 2 cents, dont look down on me now!