Another long day in my office at the Wynn Las Vegas. Everyone else had left around 5 PM and I stay another three hours, heading out at 8 PM. It's a twenty-minute walk from deep in the bowels of the main casino's multi-tiered basement to my room in the Encore tower. The casino floor is just beginning to hum. The retirees and cargo-shorted millennials are giving way to the better-dressed, high-rolling guests of assorted gen...