A little test...

This came from my Aunt Valera.

Count every ' F ' in the following text:

FINISHED FILES ARE THE RE
SULT OF YEARS OF SCIENTI
FIC STUDY COMBINED WITH
THE EXPERIENCE OF YEARS...

HOW MANY ?

WRONG, THERE ARE 6 -- no joke.
READ IT AGAIN !
Really, go back and try to find the 6 F's before you scroll down.

The reasoning behind this:

The brain cannot process 'OF'.