No thank you I already miss too many people I have loved.

I would never be bored with life.

Nuclear war would happen and I would survive? Immortality is kinda horrifying!

[en.wikipedia.org]

The sense of existence as an individual body is heavily dependent on memory. Take away memory and it is seen that self is an illusion. Take away conscious awareness and that kind of self is nonexistent, body or not.

Our selves are constantly changing—I’m not the same person that I was last year. Project yourself a thousand years into the future. Of what possible use would be the memories of today?

I lean toward the concept of universal consciousness. That is what we are collectively. In that scenario the idea of living forever has no meaning. Forever is right now.

The truth, I would guess, 100% would choose immortality, and once chosen would choose to REMAIN immortal at any given point.
I think the repulsion from death is 'infinite.' One would always choose the knowledge of life.
This is because no one knows for sure WHAT happens when we die--not a theist, agnostic, not atheist. If we DID know, our decision would be much, much easier.
True annhilation and Oblivion---immortality would be a no-brainer.
Afterlife---depends on what kind.
Reincarnation---death, because the ultimate destination is immortal enlightenment.
Seems pretty simple to me.

I suspect the biggest problem with living forever would be overpopulation. Aside from that, I think the biggest individual down side would be minimizing the relevance of life. What is life without the inevitable eventuality of death?

There was a tv show called the Good Place. I won’t go into all the premise and twists of the show. It was decided that the Good Place was where you came when your time on Earth was finished and were deemed, through your actions in life, the right person to come there and enjoy eternity with all your wants and desires there.
After a time many people grew weary of eternity and no longer were social. The Good Place Leaders adjusted and had a place in a forest for when you decided that eternity was not for you anymore, you walked through an opening and you were no more.
It was not religious in any way. There was not a God deciding anything.

The first world problem with living forever is sheer boredom. The reality is that a lot of people are scratching-out-a-living poor. Others are physically or mentally disabled. Still others are nasty bullies or criminals. So those guys don't get to live forever? Or are you saying everybody lives forever? Do your loved ones get to live forever? What about the people you really despise? '

But as an abstract thought experiment, what are the parameters? Do you KNOW before you will not die that you will not die? Maybe you can make some preparations if that is the case, but if it catches you by surprise after living what you thought would be a normal lifespan, I can see problems beyond boredom.

But no, it's not for me regardless, which is lucky, because one day I'll be gone regardless of what I want.

Kevin Hearne has a good series of novels called the Iron Druid series, where the main character is 2100 years old. He has some good insights into the problems associated with perpetual life.

Maybe it is like reincarnation. In time you would forget most experiences and keep starting over an indefinite amount of times.

It would be worth the experiment if you had the option to pull the plug.

If I could live forever, without physical and mental deterioration, I could choose a different life every so often. For instance I have no children and it would be impractical and selfish to adopt one at my age, considering the years I may have left. If they were unlimited, I could choose to adopt a child. Or I might decide to live for several years in different countries. Or try out different vocations. Seems like there would be lots of things, but maybe at some point, after another century or so, it would get tiresome, but one could then opt out.

Dorian Gray end up committing suicide, did he not?

Your conditions for making “living forever” acceptable, are the same ones for making living “one day” acceptable.
In the same vain, I think immortality would mean indefinite deterioration of the body. And so, if it was possible to stop deterioration, the question is, at what point (age) of your life, would you wand to be stuck, forever?
And, would we continue learning and becoming wiser forever? Would we then get to a point when we would be wise enough to know we don’t want to live forever?
In that case, some of us have attained that wisdom within our mortal constrains.

Read Simone de Beauvoir's novel, "All Men Are Mortal ".

I don't think living forever would entail sheer boredom. I always find new, interesting stuff to do right here at home. In fact, I may have enough projects started that to finish them I need to live forever. My fear of living forever is running out of money. Unless I continue to work forever, which I have absolutely less than zero interest in doing. I wanna die about the time my money runs out. Unless the government fucks me over I think I have 20 years depending on when I retire.

Yes, because interesting things to do are dying off daily right? Or is that hypothetically too?