I’ve never seen a movie about this:
Strange Ships arrive and circle the globe. The Auterians visiting Earth then, in all languages, announce their peaceful alien takeover of our planet has begun. They promise that there will be no property damage, and also no living humans will be killed. Even better, all people with diseases (except natural aging) will be cured for a maximum healthy lifespan. Then they announce that as of the bright flash everyone just saw, all human gametes, including those in fertility clinics in test tubes, were deactivated. Therefore, sorry, but humans will be eliminated completely in probably less than 100 years. They will not interfere, so how long it lasts is up to us. Then they leave, saying they will be back in 150 years to take our place on the planet. What would happen?
The question of how long humans would last on Earth if everyone became sterile on the same day is complex and speculative, as it involves numerous societal, economic, and environmental factors. However, we can consider a variety of aspects to provide a general perspective:
1. Natural lifespan: Since the human population could no longer reproduce, the duration would be limited to the lifespan of the existing population. Assuming an average life expectancy of around 70-80 years, humans would gradually die off as they age.
2. Social and economic collapse: With no new births and an aging population, there would be severe consequences for society and the economy. The labor force would shrink, leading to a decline in productivity and eventually impacting the infrastructure, food production, healthcare, etc. This could result in a societal collapse, humanitarian crises, and widespread chaos.
3. Technological advancements and resource management: Over time, if technological advancements, such as automation and artificial intelligence, continued to progress, they might compensate to some extent for the declining population. However, it would depend on the rate of technological development and whether it is sustainable without the ability to reproduce.
4. Preservation of knowledge and civilization: The survival of knowledge, culture, and civilization would depend on the efforts and sustainability of those individuals who remained during the decline. With time, maintaining institutions, education, and transmission of knowledge would become increasingly
challenging.
Ultimately, it is impossible to provide a precise timeline for how long humans would last under these circumstances due to the vast number of variables involved. However, it is reasonable to assume that the impact on human civilization would be humanity’s demise within a century.
