The consequence is a lopsided society where there are few young people and a population that continues to grow. Also, the meaning of young will evolve. To combat this having a child becomes something of an ultra rare privilege, like a green card lottery. Most people don’t get to have one. Because of this, becoming a grandparent because a statistical anomaly. You might think if you get to live so long, you’ll become a great great great great grandparent or something but actually the opposite. Family traditions disappear. When you’re not allowed to have kids and become a family, the dynamics of relationships between men and women change drastically.

With no deaths, wealth concentration grows to the extreme. A handful of people get to control the entire world. And most of those people are strange, so the fate of civilization rests on the off chance that they allow regular people to live a good life.

Society as we know it will be unrecognizable in that future. Whether it’s a utopia or dystopia, I think it’s neither, but does sound a bit dystopian.

So yeah, that’s not a free lunch.