Indecision
There was one especially important thing in Lisbeth’s life: “She wished she had had the guts to go up to Mikael and say hello. Or possibly break his legs.” She was not sure what to do, and thus the author shows her indecision. The irony is that because young women are supposedly so unpredictable, they do not know what they want, and when it concerns Lisbeth it is even more ironic as she is a girl who could not be very romantic, but rather rude.
Genetic failure
The author always compares Lisbeth with her sister; they were so different that it seemed “grossly unlikely that they could have come from the same womb.” Lisbeth would have been as radiantly beautiful as her sister would, and probably as crazy. The irony is that the author makes fun of it, he says that there is “something wrong with her genetic code.” She is the complete opposite of her sibling.
Mikael’s profession
When Mikael has a conversation with Harriet, he affirms that she “should not believe what is in the newspapers.” They have a false information, and this moment is very ironical because despite the fact that Mikael is a journalist, he ridicules his profession.
North and South
Lisbeth Salander always is not eager to think about her sister. She is different from her, since her sister is more beautiful and she is better in everything. For Salander “it is an irony of fate that she and her sister are so dramatically dissimilar.” They are twins, born within twenty minutes of each other, but they are like North and South.