I think AK works but is a very complex stuff.
When I first read of it, I thought it was an almost impossible thing... but I gave it a try.
There was a paper near me that I haven't read. And I tried to guess if the first letter on the page was a vowel or a consonant. I was right. I did it again with other page (without looking at the text, of course...). I was right.
I did it 6 times, and I was right all of them.
But sometimes I've had wrong results, basically because of two things:
-Not doing the technique right. (Wrong hand position because I forgot the exact way...)
-Doing a "confusing" statement, not asking "permission", etc.
It only will work if you follow the instructions. If you just figure how it works it won't work... this ain't like a remote control.
Plus not everyone can do it and you won't have access to all the information you ask.