Sherlock did have his seven-percent solution... and L (from Death Note) had to sit a certain way to keep his reasoning processes from dropping forty percent... so it's certainly a reasonable parallel.

In case anyone's curious - the Dee in this scene is at least based on (if not the same character as) a particular character in a small set of comic strips, stories, and pictures; but since most of that background was extraneous to the ideas of this scenelet, I consciously left them out to avoid interfering with said ideas. "We Were Here", http://www.datapacrat.com/sketches/FinalWebSafe1.jpg , is one of the better pictures of that version of the character - though, of course, that may have nothing to do with the version of the character you prefer to envision or enaudion.