The irony about opening of a diary is that if detected it was reasonably certain that it would be punished by death, or at least by twenty-five years in a forced-labour camp.
The central focus of 1984 by George Orwell is to inform the reader the highest level of control and power likely under a truly totalitarian regime. It explores how such a governmental system would impact society and the people who live in it.
Therefore, death or at least by twenty-five years in a forced-labour camp is ironic about law regarding the opening of a diary.
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