Tina, you consider the consequences of mortality and immortality brilliantly in this piece of writing. I especially liked the examples you gave. Your writing has a very sincere, honest quality that is very compelling. You said to be immortal is to be "the obstacle of the progress of human beings"--this is an excellent interpretation of how literature explores immortality. If you know the story of Adam and Eve, you know that ultimately, their mistake (which makes them mortal) represents progress. Good work!