Those who think make about 5% of general population according to statistics. The statistics don't seem to say how it is split between females and males but from the author's experience it might be somethig like 2:1 in favor of femeles. It shouldn't be surprising considering that according to recent MRI studies females think with both halves of their brains while males only with one. They claim that it allow them to concentrate better however concentration helps only when there is a mind that can concentrate and if most of the mind happen to be located in the other half of the brain than the one they usually concentrate with, females can use it, but males can't. It might be the reason for so many females making various discoveries in astronomy and for males discovering the "expansion of the universe".