Is it just my auditory processing being wonky again, or did John really suggest that Sherlock's got Asperger's? I've been thinking for awhile that his style of taking in all the details at once instead of 'zooming out' to see the big picture is very similar to the way autistics handle sensory input. The difference is that he's actually got the brainpower/speed to handle it, with room to spare for deductive reasoning in realtime, instead of getting overloaded. His method of recalling information, complete with images and sound clips as shown in tonight's episode likewise seemed quite familiar, though of course I've never had quite that much control over it.