ALL OVER THE COUNTRY, PEOPLE ARE SINGING—climbing to the rooftops, to the bridges, to lamppost and road sign, steeple and water tower, singing gloriously, triumphantly, tirelessly—and dying. When it’s all over, Manhattan has to rebuild a new society, and it seems to be having a lot of help in the form of angles, gods, and walking myths. What’s real? And how much does it matter?