A professional quizzer who wins contests thanks to their vast general knowledge is utilising impressive crystallised intelligence. Alternatively, Sherlock Holmes, who uses the information available from a crime scene, combines it with what he’s got in his head, and applies it to a situation to work out solutions and explanations, is relying more on fluid intelligence. In a sense, crystallised and fluid intelligence are like your computer’s hard drive and CPU, respectively… More here.
A very interesting read. Obviously your parents have an impact on much of who you are, but IQ does not seem to be a given.