We must preserve the US Second Amendment so that the people will be able to buy the near-military-grade augmentations that make them remain a non-trivial threat.
Like, the obvious question is: will the price you’re willing to pay be a price you can pay? The institutions of society (including authoritarian restrictions on reproduction, if any) are going to be designed for the service of the most powerful, and agelessness will considerably widen the gap between the most and least powerful (a stricter immortality such as through hand-waving “backup” technology is actually even worse).
There’s little reason to think that there is a fundamental physical cost that is highly expensive, like with flying cars.
The rules for agelessness cannot openly be designed so that only the wealthy benefit because people have accepted democratic principles. They’ll revolt if that happens. The powerful will have to make concessions whether they like it or not.
and the “being dead is terrible in principle” element is unconvincing to me simply because we’re all still going to die in an ageless world, or even an “immortal” one, and it’s not at all clear that we’d even die later than we would in this world.
Considering that the world is still getting safer overall, I’m not sure how reasonable that projection really is.
Additionally, postponing death by 10 or 50 or 100 years is still a very big deal, and here you’re treating it like “well you’re still going to die eventually, so it’s irrelevant.” Like another 50 years to know your loved ones or fulfill your potential (with things like art) is irrelevant.
and there’s a good chance that the quality of life we’d have in that world would be drastically worse overall, because society is made for the powerful and on average the powerful now live 100 times longer than everybody else and that will have really significant effects on how society, law, and work are structured.
Your argument hinges on this, but I feel it’s overstated and don’t find it compelling.
How hard would people be willing to fight if they knew it meant a lot more than just their ordinary limited lifespan?
And how do the powerful justify and maintain their power?
Political support for things like basic income are growing. If there is a big wave of mass displacement by automation, I think it will even go through, even though it would have been unthinkable ten years ago. The reason people aren’t thinking about these problems in the mainstream is that the technology doesn’t seem plausible yet. The political landscape will change as it does.
In other words, I expect the boring liberal democracies to essentially remain as such, with some set of politically-palatable compromise solutions. Some of the elites will even believe these solutions are good ideas.
