count every F in the following text:
  
 Finished files are the result of years of scientific study combined with the experience of years
  
 ANSWER BELOW
  
  
  
  
  
 how many did you count?
  
  
  
  
 there are 6!
 go back and read it again
  
  
 the brain cannot process 'OF'
 anyone who counts all 6 'f's in the first go is seriuosly clever
 3 is normal 
 4 is rare
  
 this will send people crazy trying to find them and keep them occupied for a few minutes!