In order for something to be a punishment, must there be an ending to it?
Hell, many say, is a punishment. But isn't the purpose of a punishment to try to make somebody learn that what they did was wrong and make them a "better person"?
Many believe in eternity in hell, but how can this be? What is the point of "punishing" somebody forever, if they will never be able to do good again? If they will never be faced with another opportunity to be a better person?