According to today’s Times, the following question is "doing the rounds of the e-mail universe, often seemingly targeted at aspirational workers and would-be intellectuals". (The preceding quote is a typical Times quote, meaningless, uncheckable, and lazy, i.e. copied out from somewhere. And, Frank and Bryan, they don’t even say "failed" intellectuals, tut tut, I ask you.)
Whinging aside, here’s the question. Please follow the instructions honestly and look in the comments to see if you got it right at first read.
"Read the following sentence — just once, at normal speed, with no looking back — and say how many times the letter F occurs: “Finished files are the result of years of scientific study combined with the experience of years.” "