The diaper pyramid inversion
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In Japan, adult diapers outsell baby diapers.
Link to video -
I think the video missed an important point. Mr. Musk seems to think that if we head off to other planets, he seems to assume that all of a sudden, people will start having a lot of babies.
What if we colonize other planets and birthrate stays the same (below replacement). Not sure why that would change.
It seems like the higher the percent of the population that has education and technology, the lower the birthrate.
We would be sending people to other planets that have both high education and high technology.
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Nice video, thanks for sharing. Sometimes it's good to have someone (or people) really pushing the envelope, it doesn't happen by itself. He seems to have the money (and already had the smarts) to be one of those people.
BTW - I have NO problem with a declining population rate. We could use a good deceleration/decline of how many people are on earth, for so many reasons. We'll figure out the social safety net problem for the older population, but I don't think we'll figure out the health/economic/climate/resource problem that comes with the fact that 100 years ago we only had 25% of the world population we have now. (2 billion vs 8 billion today)
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(https://www.foxnews.com/health/us-population-growth-lowest-rate)
Last year, the US had the lowest % population growth since the beginning of the country
