When Lonis Hamaili steps out of the elevator on the 10th floor of Duna Tower, he looks out over an avenue of palm trees, blue sea stretching to the horizon, and a barrier guarded by a man with a pistol. In front of the roof terrace of the residential and office tower, the world lies neatly arranged before him like a string of shells. The handful of buildings in the private city of Próspera line a single road. Hamaili looks at the barrier, which sits on the main street like a higher authority.