What does Winston not understand about the party's destruction of the past?

Winston struggles to grasp the extent to which the Party manipulates history to maintain its power. He does not fully comprehend that the Party's destruction of the past is not merely about altering facts, but about controlling thought and reality itself. By erasing and rewriting history, the Party seeks to eliminate any reference point for truth, effectively making its version of reality the only one that exists. This manipulation leaves individuals like Winston feeling disoriented and powerless in their pursuit of objective truth.