Yes, I have seen it. Derren Brown has written in his book that what he does is showmanship. It's only done for entertainment. It's not for real. I've written a blog post for my blog but not posted it yet about this subject.

If you want to get your reading done 3 times faster with the same or better comprehension learn PhotoReading the way it's taught.

If you want to want to do what Derren Brown does. Which is entertain people by fooling them visually and hypnotically. And that is brilliant in it's own right. It isn't quality reading, for comprehension or passing exams yet brilliant for entertaining people. Become an entertainer and the place to start learning is stage magic tricks.

AlexK