This will blow your mind 
Just try it but no cheating!
Count the number of F's in the following text:
FINISHED FILES ARE THE
RESULT OF YEARS OF SCIENTIFIC
STUDY COMBINED WITH THE
EXPERIENCE OF YEARS
*
*
*
*
*
*
*
Managed it?
Scroll down only after you have counted them!
*
*
*
OK?
*
*
How many?
*
*
*
Three?
*
*
*
*
*
*
*
*
*
*
Nope, there are six - no joke!
*
*
*
*
*
Try again!
FINISHED FILES ARE THE
RESULT OF YEARS OF SCIENTIFIC
STUDY COMBINED WITH THE
EXPERIENCE OF YEARS
*
*
*
*
*
*
The reasoning is further down...
The brain can't process the word "OF".
Anyone who counts all six F's on the first go is a genius
Three is normal.
Just try it but no cheating!
Count the number of F's in the following text:
FINISHED FILES ARE THE
RESULT OF YEARS OF SCIENTIFIC
STUDY COMBINED WITH THE
EXPERIENCE OF YEARS
*
*
*
*
*
*
*
Managed it?
Scroll down only after you have counted them!
*
*
*
OK?
*
*
How many?
*
*
*
Three?
*
*
*
*
*
*
*
*
*
*
Nope, there are six - no joke!
*
*
*
*
*
Try again!
FINISHED FILES ARE THE
RESULT OF YEARS OF SCIENTIFIC
STUDY COMBINED WITH THE
EXPERIENCE OF YEARS
*
*
*
*
*
*
The reasoning is further down...
The brain can't process the word "OF".
Anyone who counts all six F's on the first go is a genius
Three is normal.
