How perceptive are you?

Count the "F's" in the following text:

FINISHED FILES ARE THE RE-

SULT OF YEARS OF SCIENTIF-

IC STUDY COMBINED WITH THE

EXPERIENCE OF YEARS...(see below)

==============================

Managed it? Scroll down only after you have counted them, okay? Do you

think there are three?

>

How many? 3?

Wrong, there are 6!--No joke.

Read it again.

The reasoning behind is further down.

The brain cannot process "OF".

Incredible or what? Go back and look again!!

Anyone who counts all 6 "F's" on the first go is

a genius. Three is normal, four is very rare.

I got 4 at first.

..well it only strengthens my selfconfidence, I didn't think I was normal.