Maps are necessary, but flawed. (By maps, we mean any abstraction of reality, including descriptions, theories, models, etc.) The problem with a map is not simply that it is an abstraction; we need abstraction. A map with the scale of one mile to one mile would not have the problems that maps have, nor would it be helpful in any way.
alfred korzybski
BUSINESS: Helps in understanding that business strategies or market analyses are simplifications and should be regularly updated to reflect the current reality.