If categorization is central to thinking, then what mechanism carries it out? Analogy is the answer. - Douglas Hofstadter

Think of a dentist who has a list of
patients, and for each patient, a list of teeth. It makes perfect sense (and
plenty of money) to hold the patient fixed and vary his teeth-but it makes
no sense at all to hold one tooth fixed and vary the patient. (Although
sometimes it makes good sense to vary the dentist ... )

A term meant to convey a person's inability to make sense of the numbers that run their lives.

A computer program can modify itself but it cannot violate its own instructions — it can at best change some parts of itself by *obeying* its own instructions.