In chapter 1 of his book Goldstein states, "The mutability of the past is central tenet of Ingsoc." Give two reasons why it is so,

The party can change the past. They simply destroy all record of the past and create a new one. This, in essence, is Winston's job. Winston was forced to memorise this idea: "Who controls the past controls the future: who controls the present controls the past,"is repeated Winston obediently. Once the past is controlled, the party can create any future it wants to: time becomes malleable.