ABSTRACT
Supreme Court Justice Potter Stewart penned a remarkable concurrence opinion joining the majority decision in the High Court’s obscenity case Jacobellis v. Ohio (1964). He memorably wrote, “I can’t define hard-core pornography, but I know it when I see it.”1 For quite a few years after the term “24-hour city” was coined in the 1995 edition of Emerging Trends in Real Estate, that level of descriptive definition was the standard for discussion of urban centers and their commercial property markets.
