>Let me explain it for you in mathematical terms. Think of a really, really, really big number ... plus 1

And then if you subtract that number from an infinite number, the result is still that same infinite number...

>On a more serious note; What bothers me with this whole eternity thing is that after spending, say, a few million years there you will have completely forgotten what non-hell is like and start to feel that hell is the norm. Then, when hell feels normal, it won't feel so bad anymore. It will be somewhat like being a VFP programmer waiting for the next version. And you might actually get to like it! Either way, you will be able to practice living in the Zen of the moment. :)

...and at any moment during the eternity, there's still a whole eternity left. So yes, learn to enjoy the moment.