Daniel Y. said:
Wait a minute! Back the theist/atheist arguments up! Who *seriously* wants to live eternally (life or afterlife)? That would be the worst hell any religion could possibly dream up.
http://oyc.yale.edu/philosophy/death/content/class-sessions
This is the Yale professor of Philosophy, watch the 19th and 20th lectures (or preferably the entire course, it's very insightful).
Can you possibly think of anything you'd enjoy for an indefinite time period? Kagan gives the example of chocolate. He loves chocolate. Now imagine he eats one piece, then two, then three, and so on. How long before he wouldn't want chocolate anymore? Nothing is great for an indefinite time period. He also talks about liking math; he enjoys doing it - but day after day, year after year, billions of years upon billions of years? It would get boring; and not for just one specific subject. You might go fishing, do math, some physics, drive fast cars, an assortment of things - and it'd be fun. But for how long? A week? A year? 345654895236 years, a kazillionbillionzilliondazilibilion years? Remember - eternity is FOREVER. This isn't just a long time period that eventually stops, when one says eternal afterlife, it never ends; after a long time, it would be crushingly boring - and you'd have an eternity to go after the boredom starts.