The OP doesn't elaborate on the details of such a thought experiment. For example, how old (physically and mentally) is the person? What if said person were five, and were just granted immortality? Would they still age as every other person would? Would they age until a certain point? Or would they stop aging entirely? That last one has some pretty horrific implications.
In just the state of being immortal itself. Are they still liable to sustain fatal injuries, or would those injuries even faze them? What about basic needs, such as eating and sleeping? These are only just considerations I thought of so far. There may be more to account for.
That was just me stalling; the answer here is a big
NO.
Absolutely not. Earlier this year, someone made a thread here on the topic of life existing after the End (death), and I concluded my
syllogism by criticizing the idea of life suddenly starting, and just... never ending... at any point. I find it absurd because it ignores the fact that life being so short and limited is what
makes it valuable in the first place.
Immortality spits in the face of this fact because it takes away the agency of knowing your time is limited, so you should be responsible and spend it wisely. No hardship is tense because of how inconsequential it all ultimately is. At one point of another, all of the interests, hobbies, and aspirations you had will eventually start to become dull after so many countless years of partaking in them — people have this feeling even when they
know they're
mortal.
Being able to be in a state of living that involves every single person dying while you remain as you are — still alive, and with no friends and family to make your social life worth exploring, is unthinkable. Making new friends and family won't replace the ones lost to time, and forming new attachments with other people can only result in more heartbreak at the thought that these new strangers who come into your ever-existing life will
also die. You
never will. I guess the one positive, though, is that the human race will eventually become extinct at some point (sans one immortal human, of course), so the unimaginable suffering immortality would undoubtedly bring might actually be worth it just to have a single solid minute of no filthy annoying erect apes in the universe to ruin everything.
Death is an
inevitability. It's not the so-called "fear of death" that I'm worried about, but how I'll
end up in that condition of expiration. That's the difference, and we can pontificate on being "afraid to die", but how is living forever in a world rife with catastrophes, war, and endless suffering and an uncaring, hostile universe that's not obligated to concern itself with insignificant life on a planet that amounts to a mere
pixel when its entire galaxy is taken into account, somehow the better alternative?
If you
are immortal,
what do you actually have to live for? Rather or not the mortal lives we live are for naught, we still live for the people who have either passed on, currently in the realm of the living, or those who will join us in passing. Remember the mistakes of the past, and try to glean something out of it. Live for the present and do what you can that helps people. Plan ahead for the future to ensure the youth will live happier, more fulfilling lives than you did, have, or possibly ever will.