If you limit it to births to date, it’s going to be mostly Africa again, for a different reason. If you were to stick to a few millenniums back it could be interesting, I guess, because agricultural regions will dominate. I would suspect data for the late Paleolithic isn’t known with any certainty.
Past a century into the future, it becomes basically all assumptions. Humans are a very prosperous species and it seems likely we’ll have descendants on Earth for hundreds of millions of years. Even if we manage to destroy civilisation, any group of survivors could be back up and building cities in a geological instant.
If things stay progressive and prosperous, the natural birth rates are going to collapse because people just don’t bother to reproduce. Are we going to do Brave New World baby factories? If we do, population becomes a matter of policy. Unless people migrate far more than today, which doesn’t seem impossible, in which case you have to make assumptions about where they’ll want to go.
Yeah, population sizes overall would have been much smaller in the past, so paleolithic times would probably be comparitively insignificant (even 2000 years ago the entire population was less than 200 million and now it’s 8 billion more than that).
I wonder if you could get a very rough statistical estimate of humanity’s downfall just by assuming that we are somewhere in the middle of history. Like if I was born as a random person, I’m more likely to be born at a time where more people are born than when few people are born. So if you model that and make some assumptions about population growth/decline rates, could you put some numbers on when the last person is likely to be born within a margin of error?
Yeah, population sizes overall would have been much smaller in the past, so paleolithic times would probably be comparitively insignificant (even 2000 years ago the entire population was less than 200 million and now it’s 8 billion more than that).
True, but it was also an unfathomably long time, so IIRC it cancels out. Uhh… nope, I remembered wrong. Per OurWorldInData, pre-agricultural people about equal living people in count, meaning about 15% of the total. I’ll cross that out.
I wonder if you could get a very rough statistical estimate of humanity’s downfall just by assuming that we are somewhere in the middle of history
I feel like I’ve seen this done. Yep, it looks like it was a guy named Richard Gott that first wrote about it in the 90’s with respect to population, while the whole concept is called Lindy’s law.
Humans are a very prosperous species and it seems likely we’ll have descendants on Earth for hundreds of millions of years. Even if we manage to destroy civilisation, any group of survivors could be back up and building cities in a geological instant.
As longs as climate doesn’t change faster than we and our food systems can adapt, scorching heat, unbreathable air and raging storms can end our prosperity in a geological instant too.
It’s so, so far between where we are now and dying.
The Inuit survived with primitive tools, no land prey or edible plants and almost no wood in an environment that’s lethal within minutes without protection. We’d have to somehow be in tougher conditions than that even with our technology. Basically, if there’s still flies or earthworms, there will still be some of us clinging to life somewhere.
At worst, fossil fuel-induced climate change might cause large-scale migration away from the equator, maybe mostly in poor regions. In no scenario is the air unbreathable (and if it were, there are ways to adapt to that as well). It’s not even sure to cause a decline in harvests, because many agricultural regions will benefit from hotter temperatures and CO2 fertilisation.
Other animals and whole biomes will probably be fucked. Our quality of life will be degraded. But, there will still be future generations to judge us.
That’s true, I’d expect they’d go to our old ruins and scrapyards for ore rather than natural deposits. It’s way higher grade anyway. And, they’d have aluminum right off the bat!
They probably couldn’t use fossil fuels the same way, which would slow them down, but obviously renewables can work for power. I’d estimate a century or two of additional time to industrialise. For the refining, where they still need to refine, they’d have to slum it with biomass. I wonder if they’d figure out hydrogen refining faster with the different economics.
If you limit it to births to date, it’s going to be mostly Africa again, for a different reason. If you were to stick to a few millenniums back it could be interesting, I guess, because agricultural regions will dominate. I would suspect data for the late Paleolithic isn’t known with any certainty.
Past a century into the future, it becomes basically all assumptions. Humans are a very prosperous species and it seems likely we’ll have descendants on Earth for hundreds of millions of years. Even if we manage to destroy civilisation, any group of survivors could be back up and building cities in a geological instant.
If things stay progressive and prosperous, the natural birth rates are going to collapse because people just don’t bother to reproduce. Are we going to do Brave New World baby factories? If we do, population becomes a matter of policy. Unless people migrate far more than today, which doesn’t seem impossible, in which case you have to make assumptions about where they’ll want to go.
Yeah, population sizes overall would have been much smaller in the past, so paleolithic times would probably be comparitively insignificant (even 2000 years ago the entire population was less than 200 million and now it’s 8 billion more than that).
I wonder if you could get a very rough statistical estimate of humanity’s downfall just by assuming that we are somewhere in the middle of history. Like if I was born as a random person, I’m more likely to be born at a time where more people are born than when few people are born. So if you model that and make some assumptions about population growth/decline rates, could you put some numbers on when the last person is likely to be born within a margin of error?
True, but it was also an unfathomably long time, so IIRC it cancels out. Uhh… nope, I remembered wrong. Per OurWorldInData, pre-agricultural people about equal living people in count, meaning about 15% of the total. I’ll cross that out.
I feel like I’ve seen this done. Yep, it looks like it was a guy named Richard Gott that first wrote about it in the 90’s with respect to population, while the whole concept is called Lindy’s law.
As longs as climate doesn’t change faster than we and our food systems can adapt, scorching heat, unbreathable air and raging storms can end our prosperity in a geological instant too.
It’s so, so far between where we are now and dying.
The Inuit survived with primitive tools, no land prey or edible plants and almost no wood in an environment that’s lethal within minutes without protection. We’d have to somehow be in tougher conditions than that even with our technology. Basically, if there’s still flies or earthworms, there will still be some of us clinging to life somewhere.
At worst, fossil fuel-induced climate change might cause large-scale migration away from the equator, maybe mostly in poor regions. In no scenario is the air unbreathable (and if it were, there are ways to adapt to that as well). It’s not even sure to cause a decline in harvests, because many agricultural regions will benefit from hotter temperatures and CO2 fertilisation.
Other animals and whole biomes will probably be fucked. Our quality of life will be degraded. But, there will still be future generations to judge us.
Idk about that. Some social science people say that due to lack of surface deposits, it becomes much harder to restart civilization again.
That’s true, I’d expect they’d go to our old ruins and scrapyards for ore rather than natural deposits. It’s way higher grade anyway. And, they’d have aluminum right off the bat!
They probably couldn’t use fossil fuels the same way, which would slow them down, but obviously renewables can work for power. I’d estimate a century or two of additional time to industrialise. For the refining, where they still need to refine, they’d have to slum it with biomass. I wonder if they’d figure out hydrogen refining faster with the different economics.