On the then-new phenomenon of dead downtowns.
It is not only for amenity but for economics that choice is so vital. Without a mixture on the streets, our downtowns would be superficially standardized, and functionally standardized as well. New construction is necessary, but it is not an unmixed blessing: its inexorable economy is fatal to hundreds of enterprises able to make out successfully in old buildings. Notice that when a new building goes up, the kind of ground-floor tenants it gets are usually the chain store and the chain restaurant. Lack of variety in age and overhead is an unavoidable defect in large new shopping centers and is one reason why even the most successful cannot incubate the unusual--a point overlooked by planners of downtown shopping-center projects.