this post was submitted on 14 Apr 2025
354 points (98.9% liked)

World News

45792 readers
3308 users here now

A community for discussing events around the World

Rules:

Similarly, if you see posts along these lines, do not engage. Report them, block them, and live a happier life than they do. We see too many slapfights that boil down to "Mom! He's bugging me!" and "I'm not touching you!" Going forward, slapfights will result in removed comments and temp bans to cool off.

We ask that the users report any comment or post that violate the rules, to use critical thinking when reading, posting or commenting. Users that post off-topic spam, advocate violence, have multiple comments or posts removed, weaponize reports or violate the code of conduct will be banned.

All posts and comments will be reviewed on a case-by-case basis. This means that some content that violates the rules may be allowed, while other content that does not violate the rules may be removed. The moderators retain the right to remove any content and ban users.


Lemmy World Partners

News !news@lemmy.world

Politics !politics@lemmy.world

World Politics !globalpolitics@lemmy.world


Recommendations

For Firefox users, there is media bias / propaganda / fact check plugin.

https://addons.mozilla.org/en-US/firefox/addon/media-bias-fact-check/

founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[–] MrMakabar@slrpnk.net 6 points 2 days ago (2 children)

It is not an inverse pyramid though. The older humans are the more likely they die. So you always and up with a pyramide at the top, at least somewhat. With low birth rates a society has to care for fewer children. That results in an actually fairly stable ratio of working age population to dependents.

A shrinking population also means build infrastructure is already built. They just have to keep things running.

[–] NoneOfUrBusiness@fedia.io 1 points 2 days ago (1 children)

So you always and up with a pyramide at the top

Let's assume for a second that in society X every couple has one child at the age of 30 on average, and that child mortality doesn't exist. In that case the average couple has to care for one child and four grandparents for a total of 2.5 dependents per working adult. That's an inverse pyramid; there are more old people than young people. The older humans are the more likely they are to die, but also when they die new old people come to take their place so it cancels out. Anyway for comparison let's consider society Y where every couple has two children on average. In that case two sets of grandparents will give birth to four children who will then have four children in total, producing a cuboid and a ratio of 2 dependents per working adult. More than 2 and you get a pyramid at the bottom.

[–] MrMakabar@slrpnk.net 1 points 2 days ago

People are always born with the same age namely 0, but they do not all die at the same age. In fact getting older increases chances of death. Hence 2 babies per mother ends up in a pyramid too.

Even if you presume people all die at the same age, things will be stable. If say people all get childten at 30 and only work between 30-60 and then all die at 90. If we then assume 1 child per couple and everybody has a child at 30, we would get a stable dependency ratio of 2.5 dependents per worker. Obviously those numbers are not realistic. Btw that also is not a pyramid, but a trapezoid.

[–] ripcord@lemmy.world 1 points 2 days ago

It'a a bit pear-shaped, then.