What separates Hamlet from other revenge plays (and maybe from every play written before it) is that the action we expect to see, particularly from Hamlet himself, is continually postponed while Hamlet tries to obtain more certain knowledge about what he is doing. This play poses many questions that other plays would simply take for granted. Can we have certain knowledge about ghosts? Is the ghost what it appears to be, or is it really a misleading fiend? Does the ghost have reliable knowledge about its own death, or is the ghost itself deluded? Moving ...