This is a tale of two cities, of sorts. In one, the quarters are cramped, but the creative energy is palpable. In the other, the rooms are spacious, but the energy is less frenetic, more subdued. One resembles a street fair or tent revival, people bustling around, talking over each other, searching for opportunity with a sense of urgency. In the other, civility reigns: people shuffle politely into well-ordered rows, listen quietly, weighing what’s being sold with a certain coolness and distance—more like a medical conference or a cathedral service. Both are friendly; both offer…