Quote:
Originally Posted by Build.It
The defining challenge of our civilization throughout the rest of the century won't be climate change - it will be population collapse due to plummeting birth rates.
This has also happened before, and is how many civilizations have ended. Basically life gets so good that there is no need for most people to have kids, and then a population collapse follows leading to the end of that civilization.
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Population collapses have occurred throughout history (e.g., Yucatan peninsula, Easter Island, Black Death in Europe), mostly due to pandemics, disease, famine, and war.
History does not chronicle cases of civilizations collapsing on account of life getting so good that people forgo having kids. This is not to say that it cannot occur in the future, but it hasn't yet. Besides, the causality implied in your statement has no evidence. Japan had a higher standard of living back in the 1990s when its birthrate was considerably higher. The United States has, per capita, the highest standard of living of any large (non city-state/petro-state) country, yet also has one of the highest birthrates in the developed world.