site banner
Jump in the discussion.

No email address required.

Birthrates only matter because of mass immigration. If you don't have mass immigration they're irrelevant, especially with the pace at which automation via LLM (including in the material world with PaLM-E and other multimodal models for robotics) is advancing.

It doesn't really matter if South Korea's population falls from 50m to 10m provided two things are true:

  • Firstly, that total productivity can be maintained (this seems likely with LLMs able to take over a large percentage of white collar labor over the next few years, and robotics + multimodal LLMs likely to take over a large percentage of blue collar labor over the next decade or two). In this case, no economic collapse is likely, and while fiscal policy might need to adjust to redistribute generated wealth, that's not an existential issue.

  • Secondly, that those very same advances mean that military preparedness isn't damaged by falling number of young men, which again, advances in drone warfare suggest is likely. Plus, North Korea's birthrate is also collapsing (see Kim's recent comments) and it has half SK's population, so any disadvantage is unlikely to be large.

The main reason to be worried about birthrates is demographic competition as in Lebanon, in Israel, in India and so on. If a minority group has much higher birthrates than the native population, the long-term balance of power in a nation is almost guaranteed to shift.

Mass immigration is only one angle of change with late stage demographic transition. You can apply the same logic you apply to immigrants to demographic collapse. Some things:

  • Dysgenic effect of this demographic collapse. The population that is more likely to have children in modern context is population that is more likely to be prone to risky behavior. We are talking about teen mothers, people who also are more prone to addictive substances and so forth. It also makes huge difference when it comes to regional birth rate difference as well as various subcultures: for instance orthodox vs secular Askhenazi Jews in Israel.

  • The structure of post-collapse population is impacted in very important way. If you will have 15 million South Koreans in 2100 their median age can be close to 60 years. I is far worse than just having small population, it means that small number of working age people will have to take care of so many unproductive ones. Even if everything that you say is true and we will have some sort of robot revolution, this whole affair will impact the underlying political structure. I do not think that democracy as we know it can thrive in a situation where over 50% of the population is literally living on government dole or its equivalent.

Nevertheless I think you and Kevin Dolan are agreeing here. Birth rates are "not a problem" as long as some societies somehow will find a way to organize economic and political life so that people don't need to work and everybody will get what they need and want - as if this "don't work and get rich" is somehow a novel idea. I think in that case you just solved the people bottleneck by making people obsolete, as easy as that.