will eventually lead to an apathetic existence regardless of the severity of punishment or level of joy
You will simply have to master to set yourself goals. It is true, some excitements can only be had in our real, limited and risky life. But that doesn't mean that nothing matters anymore.
Just consider the people who
do want to stop to live life.
They either fell overburdened or isolated, or are plagued with physical decay or are mentally ill. The scenario of a person having all possibilities for sure but feeling unchallenged nevertheless and hence apathetic and hence wants to die is pure fiction and IMO not very plausible in the face of human nature.
Without risk, you also take out one of the greater opponents of apathy.
There is risk. Just none with consequences that you couldn't outweigh on the long run. Just think of a game of poker. Is its risk meaningless just because you don't play over a million bucks or something? Of course not. You just have to take it as important for the sake of itself instead of some gain or loss by loosing it. People all over world have managed that and are having fun doing so.
If you have no limits, what do you have to strive for?
Exploring the limitlessness.
Are there any challenges left for you?
Of course. Just because I can't die doesn't mean I am omnipotent.
I'm glad to hear you have formed an opinion on my views on the matter. I defer to your superior understanding of eternal life.
I am flattered.
There are an infinite amount of subtle ways to say "hello", but I wouldn't really interpret them all separately.
That misses my point. You now assumed that infinite just means finite stuff that only becomes infinite by differences which don't really matter to the human mind, which I didn't argue.
As long as you wouldn't eventually start remembering what you've done from the millions of times you circle the universe.
Do you remember most days of 10 years before?
Apathy over dreariness isn't just a matter of emotion.
It in fact
is an emotion. And emotions aren't "programmed" to turn suicidal after having existed for a long time or something.
I'm sure you're very convinced of your correctness, allow me to congratulate you on it.
I'll allow you to do when you see that I am right.
Gawd, for someone like me, who has closure OCD-ness, that's really unappealing; I want things to have definite beginnings and definite ends.
Hugh?
At some point it will be too much and you will want to end it.
The problem is - when you end it, you end it. Forever. Sure, at some point one may feel fed up with living. So what, go get a good sleep for a year, get rest and then things can go on.
especially if all you have left to read are great Shakespearian type plays ... written by monkeys
Write your own stuff

But as already said. When you finished reading all books. You could probably start with the first one again and it felt like it was the first time. There is only so much your memory can save.