Originally Posted by
Alric
Overpopulation isn't a problem. You tell people if they become immortal they can't have any more children until we expand out into space. They are immortal so shouldn't have an issue with waiting a few hundred years before having children right? In fact, I don't think you even need to tell people that, they will do it on their own. If you are immortal and you can have children at any time during your life, why would you have children when you are 20-30? People rush children now because they feel like they are running out of time, without that time pressure, everyone is more than happy to wait. In fact even with that time pressure a lot of people are putting off children.
There will probably be some religious people who wouldn't want to take part in immortality, but eventually they will die out because they are not immortal like everyone else. That should help reduce population as well. Though really we just need to wait until we can expand into space. We have the technology today that we could travel to other solar systems. The only problem is that it takes a really long time, however time isn't an issue to people who are immortal. So we are definitely going to travel to other planets and stuff.
As for using all the energy in the universe, that might be true but not for trillions of years. With trillions of years, that is more than enough time to solve all the problems regarding that issue. By then it may be possible to travel to other dimensions, or create new universes. Look at how much advancements are made in the last 10 years, with a trillion years it is mind boggling what people might come up with. Either way, why would you die at 80, instead of living a few trillion years and using all the energy, then dying? Stopping at 80 seems a bit silly because of something happening a trillion years in the future. Might as well give it a few million, or a billion years first to see how it is going before you decide.