One day, it all disappeared.   We lived in a gated condominium housing several hundred families, spread over four tower blocks. There was a swimming pool, gardens with fruit trees and a convenience store, but not much in the way of resources really. It happened sometime before dawn, when the night shift reported a strong wind blowing. They said trees outside were being toppled. Then the noise died down. Only dawn revealed the true nature of our predicament. Everywhere we looked outside, there was only sky. All utilities were cut. For a while, some residents argued about trying to find help. Some tried to peer over the edge to see if they could spot land below, but all they saw were clouds. We wondered what kept us up? How stable was the ground we had left?