In Tobias Wolff’s story “Bullet in the Brain,” a curmudgeonly book critic is shot at point blank range by a bank robber whose linguistic clichés the critic can’t help mocking. The bullet’s physical speed of 900 feet per second, becomes “a pathetically sluggish, glacial pace compared to the synaptic lighting” inside the critic’s skull. “Once it entered the brain,” Wolff writes, “the bullet came under the mediation of brain time.”