The Four Hobbies, and Apparent Expertise by [[Marc Brooker]]
Most hobbies, sports, and areas of interest can be split into four quadrants by an individual's particular sub-interest along the lines of doing/discussing versus the activity/gear for the activity. Many people will self-select into one of the four at the expense of the other three and this can affect the type and tenor of communities around that particular activity.
Excellence in one area doesn't imply excellence in the others. "True" fanatics ought to attempt to excel in all four quadrants.
