Look around the Boston area, or any old manufacturing center, and you’ll see industrial infrastructure repurposed for the post-industrial age. Big, solid factory buildings and warehouses have been turned into restaurants, bars, museums, convention centers, stores of all kinds. Condo conversions turn some of these buildings into residences, and high-ceilinged lofts make for good artists’ studios, but our main impulse in refitting manufacturing facilities is to create places where consumers can spend their dollars in the leisure economy.