Michiko Kakutani remembers David Foster Wallace.

David Foster Wallace used his prodigious gifts as a writer — his manic, exuberant prose, his ferocious powers of observation, his ability to fuse avant-garde techniques with old-fashioned moral seriousness — to create a series of strobe-lit portraits of a millennial America overdosing on the drugs of entertainment and self-gratification, and to capture, in the words of the musician Robert Plant, the myriad “deep and meaningless