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TYLER COWEN: the future of humanity

Lives Well Lived

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Discussion on Declining Birth Rates, Immigration, and Future Challenges

Birth rates in relatively wealthy countries except for Israel are below replacement levels, leading to shrinking populations. Immigration from poorer to richer countries may not solve the issue globally, as demonstrated by countries like Ecuador with declining fertility rates. Encouraging child-rearing practices in richer countries may be necessary. While some countries like Australia are currently accommodating immigrants without shortages, this may not be a sustainable solution. Aging populations and the impact of AI on addressing this issue are also discussed. Despite challenges such as congestion and climate change costs impacting global GDP, a net utilitarian benefit is seen in having more humans. There are concerns about potential scenarios where parts of the planet could become uninhabitable, although technological advancements in solar power and battery technology provide hope for addressing climate change. The importance of taking proactive measures and increasing efforts beyond the current levels is emphasized to mitigate uncertainties and risks for the future.

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