Coming to Tbilisi, the capital of Georgia, always feels like traveling through time. The city can be spectacular, with its winding streets and mountains all around. But as soon as the sun disappears what begins to stand out is how dilapidated it is. In the past quarter century Tbilisi has endured the collapse of the Soviet Union, a civil war, and a revolution. What remains is a maze of broken sidewalks, haphazard residential structures that were probably conceived as temporary, and clotheslines that stretch between them: children’s clothes and men’s pants, and giant duvet covers, all of which have…