A Number review " dizzying double-take on the question of cloning
Royal Lyceum, EdinburghA crisp combination of stillness and urgency powers Caryl Churchill's teasing speculations on identityCaryl Churchill's two-hander zips along in an hour, so most evenings there's a talk scheduled beforehand. Presented with the Edinburgh international science festival, each of these conversations picks up on the playwright's theme about the meaning of identity in a hi-tech world. On the night I …