This is the most realstic flashback EVER!!!

That is probably becasue it is not a flashback. Amir, in order to rescue his nephew, scowers the shattered remains of hischildhood home. Eventually he finds him.. .to bad he is in the care of his childhood bully. Assef is once again threating Amir with beating him to death, and the reincarnation of Hassan in his son, allows Amir to understand the significance of what he should have done so many years ago. Hassan risked his life for his best friend. And now his son was doing the same thing. Amir should ahve known that in that alley, he may have gotten hurt, but Hassan would have been his saving grace, right by his side. Instead, Hassan took all of the punishment, without a word of protest. Amir was silent also, but in the wrong way. Now his nephew is sticking up for him, jsut has his father would have. Amir finally beleives that his debt has been paid. His suffering has been lifted.