Tea wrote

Lavish wrote I don't know if I have already replied to this thread or not so here is my opinion;

Yes and no.
If we were to become immortal it wouldn't be exactly what you think it would be like.

The word has a expiration date.
We would run out of resources within 500-1500 years and then what?

OR Nuclear warfare happens and it literally blows up everything.
I mean EVERYTHING, like the world is just gone.

Would the entire population of immortals just be floating around endlessly in space sense there is no longer a earth?

You have a point with resources, but the world is changing to be more dependent on renewable resources and less on non-renewable resources, so it would be possible to survive once oil is gone because by then we should be able to use solar, geothermal etc... for energy and for plastics you can use sugar cane which creates Ethanol, and then you can make it into Polyethylene which you can use to make plastics.

The only problem would be population, as the global population is rapidly increasing, and if you had immortal people then it would increase even more as the death rate would decrease. However it depends on who and how you can become immortal, if it's a biological method, so for example an injection then it would cause a lot of problems as you'd have people replicating it, selling it, and having millions, and eventually billions being immortal. But, if it was a method which is more technology based, such as nano technology, which the factors for it were huge, then it wouldn't cause a huge population problem as it would be highly limited. Back onto the point of population, as it's increasing, more food is needed so as you said, some resources would run out, but that's a global problem which is going to happen anyway, so that wouldn't make much difference if the immortality was limited.

As for Nuclear warfare, I could see this being either the biggest nuclear threat ever by a huge margin, or it being non existent. Most countries which are prepared to use a nuclear weapon, such as North Korea, are only doing it to show the power they have, but it's not so much the nation, more so the leader, and what greater power can you have than being immortal, I'm sure a lot of dictators would try to become immortal, so possibly negotiate something for the immortality, or use resources that would be used for nuclear development to make their own method of immortality. Also, if the world leaders were immortal, it could see the start of world peace, or as I said, the start of a nuclear war, so it's hard to say what would happen in that aspect.

"The world has a expiration date."

That's very true, but this is in billions of years, which if we're immortal, we can use space travel, as a big thing stopping humans exploring space is that we couldn't, I don't know an exact number, but it's something like 30 years to get to the edge of the solar system, so once you're there, and for an astronaut you could be 25, you could either carry on for another 30 years, or however long it takes, or come back to earth, and by the time you've arrived back, you've been gone 60 years, so you'd be near death. However, if people were immortal, you could go for centuries, that's if you had the resources to live, so water, food, oxygen etc... so it could be 1000, 2000... years of space travel until someone finds a planet which is habitable, which is only possible to get there if you're immortal, so the world being billions of years until life couldn't be sustainable there wouldn't matter.

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In reply to the topic, as I said in my earlier reply, it's possible, and it's said that every few years you replace nearly all the atoms in your body, so if your cells could constantly divide you could live forever, as long as you didn't die of other things, such as being killed or starving to death, as you would have a new body of atoms so it's kind of like having a new body in a way, so it would work scientifically, but literally no, I don't believe humans are mentally evolved enough for it to work in practice because of problems like nuclear war, murder, most of which Lavish said above.