Noah Falstein writes:
''I've written before about the clustering of personality traits that many game designers share, most recently in the December 2006 issue of Game Developer magazine. In that article, I talked about how two scores on the Myers-Briggs personality test are quite common among game designers (INTJ and ENTJ). But there are many other less esoteric similarities, and one intriguing one is how many designers first began creating and modifying games, long before their professional careers began.
To a great degree, all kids are natural game designers. With make-believe play, children may start with an established game, then often get caught up in the rules of play. "That's not fair, you have to touch me with your hand, jabbing my coat with that stick doesn't count!" But I know from my own experience that some people show their interest in game design in more concrete terms.''