The Colour of MemoryIn the race to be first in describing the lost generation of the 1980s, Geoff Dyer in The Colour of Memory leads past the winning post. "We're not lost," one of his hero's friends says, "we're virtually extinct". It is a small world in Brixton that Dyer commemorates, of council flat and instant wasteland, of living on the dole and the scrounge, of mugging, which is merely begging by force, and of listening to Callas and Coltrane. It is the nostalgia