Philosopher Derek Parfit died on January 1st. Let us hope he will go to heaven. Will he? Parfit, who was an agnostic, was not much concerned with the existence of heaven or hell. But, he did famously argue that, even if such places do exist, the person going there would not be the same person who previously died. And, thus, someone would be punished or rewarded for the deeds of another person. This is deeply unjust, as unfair as sending someone to prison because of the crimes committed by his identical twin brother.