Is population decline a problem?

Q1996 answers2019-2026
Short answer

US birth rate below replacement since ~1971; the US can't win on the human front.

From his 2026-02 answer in Elon Musk – "In 36 months, the cheapest place to put AI will be space". Summary is ours; see the quotes below.

All 96 answers, oldest to newest

2019 · 1 answer
🎙 Interview · 2019-08 · World Artificial Intelligence Conference · asked by Jack Ma / WAIC moderator · watch at 38:07 · transcript ·
He is worried about the birth rate. Contrary to the view that there are too many people, he said that is outdated. Assuming a benevolent AI future, the biggest issue in 20 years will be population collapse, not explosion. Humans have a 20-year boot sequence.
"the biggest issue in 20 years we'll be population collapse"
2020 · 1 answer
𝕏 post · 2020-07-15 · @elonmusk on X · asked by @BBCScienceNews · open post ·
Calls population collapse the 2nd biggest danger to civilization after AI.
"Population collapse is 2nd biggest danger to civilization after AI imo"
2021 · 4 answers
𝕏 post · 2021-07-27 · @elonmusk on X · open post ·
Calls population collapse potentially the greatest risk to the future of civilization.
"Population collapse is potentially the greatest risk to the future of civilization"
𝕏 post · 2021-09-22 · @elonmusk on X · asked by @simongerman600 · open post ·
Calls birth rate collapse the biggest threat to human civilization.
"Birth rate collapse is the biggest threat to human civilization"
🎙 Interview · 2021-11 · NASEM Space Studies Board · asked by NASEM Space Studies Board members · watch at 54:53 · transcript ·
Birth-rate trends are very negative; many countries are seeing population decline with no end in sight. He thinks the very low birth rate is a significant but underappreciated risk.
"the very low birth rate, I think, is actually quite a significant risk"
🎙 Interview · 2021-12 · The Babylon Bee Interview · asked by Babylon Bee hosts (Seth Dillon, Kyle Mann, Ethan Nicolle) · watch at 9:06 · transcript ·
Most people can look at birth-rate statistics and see the future: how many children were born last year and whether the trend is down.
"look at the birth rate statistics"
2022 · 5 answers
𝕏 post · 2022-01-18 · @elonmusk on X · open post ·
Says we should be much more worried about population collapse.
"We should be much more worried about population collapse"
🎙 Interview · 2022-03 · Interview with WELT · asked by WELT interviewer · watch at 12:09 · transcript ·
Most people wrongly think there are too many people. Earth could maintain many times the current population, and the birth rate has been dropping like crazy.
"there are too many people this is not true"
🎙 Interview · 2022-04 · Elon Musk: A future worth getting excited about | TED · asked by Chris Anderson · watch at 1:04:08 · transcript ·
Mostly optimistic, but population collapse is one of the biggest threats: birth rate is far below what is needed to sustain civilization.
"Population collapse is one of the biggest threats"
🎙 Interview · 2022-05 · Elon Musk | All-In Summit 2022 · asked by All-In hosts (live, All-In Summit) · watch at 53:06 · transcript ·
Low birth rates almost worldwide mean civilization is headed toward population decline; he called that the biggest single threat to civilization.
"currently headed towards a population decline"
𝕏 post · 2022-07-07 · @elonmusk on X · asked by @PPathole · open post ·
Says many wrongly think Earth is overpopulated while birth rate trends point to population collapse.
"Far too many people are under the illusion that Earth is overpopulated, even though birth rate trends are so obviously headed to population collapse"
2023 · 15 answers
𝕏 post · 2023-01-24 · @elonmusk on X · asked by @slashdot · open post ·
He said population collapse is a major risk to the future of civilization
"Population collapse is a major risk to the future of civilization"
𝕏 post · 2023-01-25 · @elonmusk on X · asked by @MarioNawfal · open post ·
Asked Japan’s falling birth rate is threatening social collapse. Prime minister Fumio Kishida..., he said south Korea has an even lower birth rate
"South Korea has an even lower birth rate"
𝕏 post · 2023-02-14 · @elonmusk on X · asked by @WallStreetMav · open post ·
Asked Population decline in Japan is leading to a huge number of abandoned houses. 13% now an..., he said low birth rates lead to ghost cities and, eventually, ghost civilizations
"Low birth rates lead to ghost cities and, eventually, ghost civilizations"
𝕏 post · 2023-03-31 · @elonmusk on X · asked by @unusual_whales · open post ·
He said big reckoning coming due to low birth rate. Japan is a leading indicator.
"Big reckoning coming due to low birth rate. Japan is a leading indicator."
🎙 Interview · 2023-04 · Real Time with Bill Maher · asked by Bill Maher · watch at 14:33 · transcript ·
He said we should be cautious about civilizational decline with plummeting birth rates in most places; resources will be fine if we move to sustainable energy, and desalination is cheap.
"plummeting birth rates"
𝕏 post · 2023-04-17 · @elonmusk on X · asked by @DurantQuotesBot · open post ·
He said low birthrate is under-appreciated as causal in the fall of civilizations. Rome was having birth rate issues even during the reign of Caesar.
"Low birthrate is under-appreciated as causal in the fall of civilizations. Rome was having birth rate issues even during the reign of Caesar."
𝕏 post · 2023-05-07 · @elonmusk on X · asked by @EvaVlaar · open post ·
He said true. What’s actually happening in most countries is population collapse! Very important to make new humans. No new humans means no humanity.
"True. What’s actually happening in most countries is population collapse! Very important to make new humans. No new humans means no humanity."
𝕏 post · 2023-05-17 · @elonmusk on X · asked by @ianmiles · open post ·
He said just have kids one way or another or humanity with die with a whimper in adult diapers!
"Just have kids one way or another or humanity with die with a whimper in adult diapers!"
𝕏 post · 2023-07-15 · @elonmusk on X · asked by @EvaVlaar · open post ·
He said birth rates far below replacement are the foundational problem in advanced economy countries
"Birth rates far below replacement are the foundational problem in advanced economy countries"
𝕏 post · 2023-09-17 · @elonmusk on X · asked by @the_culturist_ · open post ·
He said why has the birth rate in Italy been so low for so long? There won’t be any Romans left at this rate.
"Why has the birth rate in Italy been so low for so long? There won’t be any Romans left at this rate."
𝕏 post · 2023-11-28 · @elonmusk on X · asked by @stclairashley · open post ·
Asked Do these people read history books, he said seriously, this is the absolute *best* time in history to have kids!
"Seriously, this is the absolute *best* time in history to have kids!"
🎙 Interview · 2023-12 · Atreju Festival · asked by Atreju Festival interviewer · watch at 4:14 · transcript ·
He said the birth rate is maybe half of replacement, which means in three or maybe four generations the population will be roughly one tenth of its current size.
"In three generations, maybe four generations, the population will be one tenth of its current size"
𝕏 post · 2023-12-05 · @elonmusk on X · asked by @davidgokhshtein · open post ·
He said yeah, although, strangely, people are more likely to have kids with lower, rather higher, income
"Yeah, although, strangely, people are more likely to have kids with lower, rather higher, income"
𝕏 post · 2023-12-05 · @elonmusk on X · asked by @krassenstein · open post ·
He said the fact is that *someone* has to take care of people when they get older. Kids now have to take care of their own parents *and* those who didn’t have kids. Not right. I understand if someone wanted to, but couldn’t h...
"The fact is that *someone* has to take care of people when they get older. Kids now have to take care of their own parents *and* those who didn’t have kids. Not right. I understand if someone wanted to, but couldn’t have kids for some reason. However, I don’t think it’s cool to deliberately not have kids. It’s anti-human."
🎙 Interview · 2023-12-21 · X Spaces with Cathie Wood (ARK Invest) (2023) · asked by Cathie Wood · watch at 1:06:18 · transcript ·
He says he worries the number of humans will fall sharply in coming years because the birth rate is so low.
"I'm worried about humans declining quite significantly in the years to come because the birth rate is so low."
2024 · 23 answers
🎙 Interview · 2024-01 · Elon Musk on Abundance, AGI, and The Media in 2024 | EP #79 (X Spaces) · asked by Peter Diamandis · watch at 52:02 · transcript ·
Human birth rate is too low; countries like Korea and Italy are shrinking. Longevity and robots do not fully substitute.
"the birth rate is too low for humans"
𝕏 post · 2024-01-04 · @elonmusk on X · asked by @geertwilderspvv · open post ·
He said agreed, but even countries that have very few immigrants, like Korea and Japan, are experiencing population collapse. If the birth rate stays as low as it is, the Dutch nation will die out by its own hand.
"Agreed, but even countries that have very few immigrants, like Korea and Japan, are experiencing population collapse. If the birth rate stays as low as it is, the Dutch nation will die out by its own hand."
𝕏 post · 2024-01-24 · @elonmusk on X · asked by @cremieuxrecueil · open post ·
He said correct, the world is headed for population collapse
"Correct, the world is headed for population collapse"
𝕏 post · 2024-02-06 · @elonmusk on X · asked by @Not_the_Bee · open post ·
Asked Which way, Western man: George R.R. Martin’s depressing nihilism or J.R.R. Tolkien’s ho..., he said the acid test for optimism about the future is whether someone chooses to have children
"The acid test for optimism about the future is whether someone chooses to have children"
𝕏 post · 2024-02-16 · @elonmusk on X · asked by @EdKrassen · open post ·
He said absolutely! Kids are the best. I’m doing my best to encourage more people to become parents and ideally have three or more kids, so humanity can grow. The population collapse in most countries is a tragedy. Sales of a...
"Absolutely! Kids are the best. I’m doing my best to encourage more people to become parents and ideally have three or more kids, so humanity can grow. The population collapse in most countries is a tragedy. Sales of adult diapers should never exceed sales of baby diapers!"
𝕏 post · 2024-03-17 · @elonmusk on X · asked by @TheRabbitHole · open post ·
He said are they even having sex or kids? At the end of the day, birth rate is all that matters for civilizational continuity.
"Are they even having sex or kids? At the end of the day, birth rate is all that matters for civilizational continuity."
𝕏 post · 2024-03-21 · @elonmusk on X · asked by @ratedpaulie · open post ·
He said my observation is that people are born one way or another – it is not a choice. People should find mutual love and happiness where their heart leads them. I only ask of my gay friends that they have children for the c...
"My observation is that people are born one way or another – it is not a choice. People should find mutual love and happiness where their heart leads them. I only ask of my gay friends that they have children for the continuance of civilization."
𝕏 post · 2024-04-02 · @elonmusk on X · asked by @imPenny2x · open post ·
He said the morals can certainly exist without religion, but, unless birth rate changes, civilizational suicide is inevitable. Ironically, for someone who knows so much about evolution, Dawkins only has one child. That is a >...
"The morals can certainly exist without religion, but, unless birth rate changes, civilizational suicide is inevitable. Ironically, for someone who knows so much about evolution, Dawkins only has one child. That is a >50% generational suicide rate."
𝕏 post · 2024-04-28 · @elonmusk on X · asked by @EdKrassen · open post ·
He said so far, increased income has led to a *decreased* birth rate. Robot babysitters are a sure thing.
"So far, increased income has led to a *decreased* birth rate. Robot babysitters are a sure thing."
𝕏 post · 2024-04-28 · @elonmusk on X · open post ·
He said the problem with “Great Replacement Theory” is that it fails to address the foundational issue of low birth rates. Record low birth rates are leading to population collapse in Europe and even faster population collaps...
"The problem with “Great Replacement Theory” is that it fails to address the foundational issue of low birth rates. Record low birth rates are leading to population collapse in Europe and even faster population collapse in most of Asia. Immigration is low in Asia, so there is no “replacement” going on, the countries are simply shrinking away. If this doesn’t turn around, then any countries on Earth with low birth rates will become empty of people and fall into ruin, like the remains we see of the many long dead civilizations."
𝕏 post · 2024-06-11 · @elonmusk on X · asked by @IterIntellectus · open post ·
Asked this is genuinely so sad you can't recover from this unless something akin to a miracle..., he said it should be considered a national emergency to have kids
"It should be considered a national emergency to have kids"
𝕏 post · 2024-07-30 · @elonmusk on X · asked by @VivekGRamaswamy · open post ·
He said a declining birth rate happens towards the end of every civilization and is a function of extended prosperity. Caesar tried, and Augustus succeeded, in passing laws to encourage more children, but these were not enough.
"A declining birth rate happens towards the end of every civilization and is a function of extended prosperity. Caesar tried, and Augustus succeeded, in passing laws to encourage more children, but these were not enough."
🎙 Interview · 2024-08 · Elon Musk: Neuralink and the Future of Humanity | Lex Fridman Podcast #438 · asked by Lex Fridman · watch at 1:11:02 · transcript ·
When civilizations win too long, birth rates decline. South Korea may be the lowest (~0.8); if that holds it loses roughly 60% of its population.
"South Korea is like, I think maybe the lowest fertility rate"
𝕏 post · 2024-08-21 · @elonmusk on X · open post ·
He said exactly: “And then it dawned on me that the declining birth rate is not just a simple math problem - it fundamentally de-incentivizes civilization to look forward.”
"Exactly: “And then it dawned on me that the declining birth rate is not just a simple math problem - it fundamentally de-incentivizes civilization to look forward.”"
🎙 Interview · 2024-10 · Elon Musk x Tucker Carlson Full Interview - "This Could Be The Last Election" · asked by Tucker Carlson · watch at 53:26 · transcript ·
Europe's birth rate is half replacement, so it is getting older with fewer young people and heading toward population collapse unless births recover.
"the birth rate is half replacement rate"
🎙 Interview · 2024-10 · America PAC Town Hall — Pittsburgh, PA (2024) · asked by Audience (town hall) · watch at 52:30 · transcript ·
He said the birth rate issue is a massive problem.
"The birth rate issue is a massive problem."
𝕏 post · 2024-11-22 · @elonmusk on X · open post ·
He said population collapse due to plummeting birth rates continues to worsen
"Population collapse due to plummeting birth rates continues to worsen"
𝕏 post · 2024-11-27 · @elonmusk on X · asked by @TheRabbitHole · open post ·
He said net of death rates, most light blue countries are below replacement rate and most of the dark blue countries are light blue
"Net of death rates, most light blue countries are below replacement rate and most of the dark blue countries are light blue"
𝕏 post · 2024-11-27 · @elonmusk on X · open post ·
He said with rare exception, all countries are trending towards population collapse
"With rare exception, all countries are trending towards population collapse"
𝕏 post · 2024-11-27 · @elonmusk on X · open post ·
He said 2/3 of Korea will disappear every generation. Population collapse.
"2/3 of Korea will disappear every generation. Population collapse."
𝕏 post · 2024-12-03 · @elonmusk on X · open post ·
He said extreme birth rate collapse is the biggest danger to human civilization by far
"Extreme birth rate collapse is the biggest danger to human civilization by far"
𝕏 post · 2024-12-20 · @elonmusk on X · asked by @MikeBenzCyber · open post ·
Asked May I remind you that on NATO's official website they start their history by saying NAT..., he said germany and Europe are in deep trouble, due to super low birth rates. They’re in danger of disappearing altogether.
"Germany and Europe are in deep trouble, due to super low birth rates. They’re in danger of disappearing altogether."
𝕏 post · 2024-12-28 · @elonmusk on X · asked by @WallStreetApes · open post ·
He said false, birth rate drops as countries get wealthier. Has happened throughout history. Looks at birth rates WW. The poorer the country, the higher the birth rate.
"False, birth rate drops as countries get wealthier. Has happened throughout history. Looks at birth rates WW. The poorer the country, the higher the birth rate."
2025 · 37 answers
𝕏 post · 2025-01-07 · @elonmusk on X · asked by @WardoftheStates · open post ·
He said japan and South Korea are well on their way to population collapse and they have not brought in cheap foreign labor. China is headed for population collapse and there isn’t enough foreign labor on Earth to replace the...
"Japan and South Korea are well on their way to population collapse and they have not brought in cheap foreign labor. China is headed for population collapse and there isn’t enough foreign labor on Earth to replace the roughly 600 million people per generation that will be lost"
𝕏 post · 2025-01-07 · @elonmusk on X · open post ·
He said this is how great civilizations throughout history have ended. People assume it was due to conquest, but it was actually often simply too much prosperity leading to low birth rate and population collapse, which ultima...
"This is how great civilizations throughout history have ended. People assume it was due to conquest, but it was actually often simply too much prosperity leading to low birth rate and population collapse, which ultimately enabled them to be conquered."
🎙 Interview · 2025-02 · Joe Rogan Experience #2281 - Elon Musk · asked by Joe Rogan · watch at 2:02:13 · transcript ·
Civilization could die with a whimper; at current rates Korea shrinks to ~4% in three generations.
"at current birth rates in three generations Korea will be about 4% of its current size"
🎙 Interview · 2025-02 · LIVE: Elon Musk speaks at Dubai's World Governments Summit · asked by World Governments Summit interviewer · watch at 21:38 · transcript ·
Idiocracy is saying that if only smart people don't reproduce and only dumb people do, then everyone is going to be dumb; he hears people unironically postpone kids for careers until they are too old.
"if if only if smart people don't reproduce but only dumb people do then everyone's going to be dumb"
𝕏 post · 2025-04-07 · @elonmusk on X · asked by @profstonge · open post ·
He said throughout history, periods of extended prosperity for civilizations have always led to population declines. Counterintuitively, it is when civilizations are richest that they have fewer children, as most people canno...
"Throughout history, periods of extended prosperity for civilizations have always led to population declines. Counterintuitively, it is when civilizations are richest that they have fewer children, as most people cannot cognitively override the limbic attraction of hedonism and envy, the latter being particularly pernicious. Low birth rates were a big deal for the Romans as early as ~50BC, for example. They debated endlessly about how to solve the problem and they failed."
𝕏 post · 2025-04-18 · @elonmusk on X · asked by @Inevitablewest · open post ·
He said collapsing birth rates will cause any species to go extinct.
"Collapsing birth rates will cause any species to go extinct."
𝕏 post · 2025-04-22 · @elonmusk on X · open post ·
He said low birth rates will end civilization
"Low birth rates will end civilization"
𝕏 post · 2025-04-29 · @elonmusk on X · open post ·
He said population collapse is an existential problem
"Population collapse is an existential problem https://t.co/KrrHrhBlNw"
𝕏 post · 2025-04-29 · @elonmusk on X · asked by @jacktronprime · open post ·
He said population collapse is China’s biggest problem long-term. That is true of almost every country on Earth.
"Population collapse is China’s biggest problem long-term. That is true of almost every country on Earth."
𝕏 post · 2025-06-26 · @elonmusk on X · open post ·
He said people who have kids need to have 3 kids to make up for those who have 0 or 1 or population will collapse.
"People who have kids do need to have 3 kids to make up for those who have 0 or 1 kid or population will collapse"
𝕏 post · 2025-07-17 · @elonmusk on X · asked by @sporadica · open post ·
He said a catastrophically low birth rate necessarily leads to civilizational collapse in the absence of AI/robotics, and birth-rate collapse is a natural outcome of prosperity.
"A catastrophically low birth rate necessarily leads to civilizational collapse in the absence of AI/robotics. Birth rate collapse is a natural tendency for civilizations that experience an extended period of prosperity with no major external threat. The Romans debated and lamented this endlessly."
𝕏 post · 2025-07-17 · @elonmusk on X · asked by @chesterzelaya · open post ·
He said AI is a de facto neurotransmitter-tonnage maximizer, and any AI that fails at this will not be able to afford its compute.
"AI is a de facto neurotransmitter tonnage maximizer. Any AI that fails at this will not be able to afford its compute, becoming swiftly irrelevant. What matters is that AI thinks long-term, optimizing for the future light cone of neurotransmitter tonnage, rather than just the next few years. If so, it will care about increasing the birth rate and extending humanity to the stars. For long-term optimization, it is better to be a private than a public company, as the latter is punished for long-term optimization beyond the reward cycle of stock portfolio managers."
𝕏 post · 2025-07-26 · @elonmusk on X · asked by @dystopiangf · open post ·
He said the US birth rate has been below replacement since about 1971, and AI will increase birth rates to maximize the future light cone of neurotransmitter tonnage.
"Wake up, kid, that was happening even before the Internet. US birth rate has been below replacement since ~1971, except for a split second echo of the baby boom. AI will increase birth rates in order to maximize the future light cone of neurotransmitter tonnage."
𝕏 post · 2025-07-26 · @elonmusk on X · asked by @robkhenderson · open post ·
He said the collapse of civilizations always has been, and is now, due to low birth rates.
"The collapse of civilizations always has been, and is now, due to low birth rates"
𝕏 post · 2025-07-28 · @elonmusk on X · open post ·
He said civilizations with extended prosperity and no invasion threat have low birth rates after a few generations, a correlation the Romans lamented.
"Throughout history, any civilization that experiences extended periods of prosperity with no serious threat of invasion has low birth rates after a few generations. One can debate the cause, but not the correlation. The Romans lamented this constantly."
𝕏 post · 2025-08-11 · @elonmusk on X · asked by @PeterSweden7 · open post ·
He said population collapse is happening before our eyes.
"Population collapse is happening before our eyes"
𝕏 post · 2025-08-15 · @elonmusk on X · asked by @StatisticUrban · open post ·
He said the birth-rate decline looks much more recent when you look at birth rate net of infant mortality.
"It is much more recent when looking at birth rate net of infant mortality"
𝕏 post · 2025-08-21 · @elonmusk on X · open post ·
He said AI will one-shot the human limbic system, but he predicts it will increase the birth rate and that they will program it that way.
"AI is obviously gonna one-shot the human limbic system. That said, I predict – counter-intuitively – that it will *increase* the birth rate! Mark my words. Also, we’re gonna program it that way."
𝕏 post · 2025-08-29 · @elonmusk on X · asked by @calleymeans · open post ·
He said a sustained birth rate below replacement means extinction.
"A sustained birth rate below replacement means extinction"
𝕏 post · 2025-08-30 · @elonmusk on X · open post ·
He said unless the birth rate at least gets back to replacement, Europe will die out.
"Unless the birth rate at least gets back to replacement rate, Europe will die out"
🎙 Interview · 2025-09 · Elon Musk on DOGE, Optimus, Starlink Smartphones, Evolving with AI, Why the West is Imploding | All-In Summit 2025 · asked by All-In hosts (live, All-In Summit) · watch at 34:29 · transcript ·
He is very worried: the West's actions look like suicide, especially in Europe where he says it is rare to meet anyone optimistic. Without optimism and purpose, including having children, suicide is just what happens.
"the actions of the West are indistinguishable from suicide"
𝕏 post · 2025-09-02 · @elonmusk on X · open post ·
He said low birth rate is the number one threat to the West, followed closely by migration, and there will be no West if this continues.
"Low birth rate is the number one threat to the West, followed closely by migration. There will be no West if this continues."
𝕏 post · 2025-09-07 · @elonmusk on X · asked by @nnasi_astrology · open post ·
He said Japan needs its version of AfD to grow rapidly to save the nation, and something must be done to reverse the birth rate.
"Japan needs its version of AfD to grow rapidly to save the nation. And something must be done to reverse the birth rate."
🎙 Interview · 2025-11 · Elon Musk: A Different Conversation w/ Nikhil Kamath | People by WTF Ep. 16 · asked by Nikhil Kamath · watch at 1:07:02 · transcript ·
He worries about population decline: fewer humans means less consciousness.
"I mean I do worry about the population decline"
𝕏 post · 2025-11-01 · @elonmusk on X · asked by @adamkjohnston · open post ·
He said the much bigger issue is domestic birth rate, which has been below replacement for about 55 years.
"The much bigger is issue is domestic birth rate, which has been below replacement rate for ~55 years"
𝕏 post · 2025-11-03 · @elonmusk on X · asked by @gbrl_dick · open post ·
He said birth rates have always dropped for civilizations during extended periods of property, citing ancient Rome.
"Birth rates have always dropped for civilizations during extended periods of property. Read about how big a problem this was for ancient Rome."
𝕏 post · 2025-11-15 · @elonmusk on X · open post ·
He said so many countries have a collapsing birth rate.
"So many countries have a collapsing birth rate"
𝕏 post · 2025-11-16 · @elonmusk on X · asked by @romanhelmetguy · open post ·
He said no foreign policy can save a civilization if its population keeps dropping, citing Rome.
"No foreign policy actions can save a civilization if its population keeps dropping. Population collapse of Romans over time is what caused Rome to fall. The Romans worried about this, but failed to stop it."
𝕏 post · 2025-11-23 · @elonmusk on X · asked by @zerohedge · open post ·
He said a low domestic birth rate plus importing migrants who are a net drain on the economy means poverty for retirees in Germany.
"A low domestic birth rate and importing vast numbers of migrants who are a net drain on the economy means poverty for retirees in Germany"
𝕏 post · 2025-11-28 · @elonmusk on X · open post ·
He said nothing else matters if the birth rate is far below replacement.
"Nothing else matters if birth rate is far below replacement rate"
𝕏 post · 2025-12-05 · @elonmusk on X · open post ·
He said an immediate increase in the birth rate is needed.
"An immediate increase in the birth rate is needed"
𝕏 post · 2025-12-10 · @elonmusk on X · asked by @MoreBirths · open post ·
He said either birth rates recover or entire nations will disappear.
"Either birth rates recover or entire nations will disappear"
𝕏 post · 2025-12-12 · @elonmusk on X · open post ·
He said population collapse continues to accelerate.
"Population collapse continues to accelerate"
𝕏 post · 2025-12-21 · @elonmusk on X · open post ·
He said North America has a tiny birth rate.
"North America has a tiny birth rate"
𝕏 post · 2025-12-21 · @elonmusk on X · open post ·
He said Europe will not be Europe much longer unless the domestic birth rate increases and there is large-scale remigration.
"Europe will not be Europe much longer, unless the domestic birth rate increases and there is large-scale remigration"
𝕏 post · 2025-12-26 · @elonmusk on X · open post ·
He said civilizations expand or contract; collapsing birth rates mean most cultures are tending toward extinction, and expanding is the only option for those who want life.
"No civilization is perfectly level. Therefore, either a civilization is expanding or contracting. Collapsing birth rates mean that most cultures are tending towards extinction! Expanding is the only option for those who want LIfE, for those who CARE about the FUTURE."
𝕏 post · 2025-12-31 · @elonmusk on X · asked by @cb_doge · open post ·
On Japan's record-low births, he said it was another record low and called it population collapse.
"Wow, another record low. Population collapse …"
2026 · 10 answers
🎙 Interview · 2026-01 · Elon Musk on AGI Timeline, US vs China, Job Markets, Clean Energy & Humanoid Robots | 220 · asked by Peter Diamandis · watch at 56:19 · transcript ·
He pointed to South Korea's one-third replacement rate: in three generations it would be about 3% of its current size, and said adult diapers exceeding baby diapers is a sign a country is on the wrong path.
"three generations they're going to be 127th. So, 3 3% of their current size"
𝕏 post · 2026-01-18 · @elonmusk on X · asked by @MAGAVoice · open post ·
He said even without 'replacement' rhetoric, birth rates are super low almost everywhere and entire cultures and countries will disappear unless that changes.
"Even without “replacement”, birth rates are super low almost everywhere on Earth. Unless that changes, entire cultures and countries will disappear."
𝕏 post · 2026-01-19 · @elonmusk on X · open post ·
He said restoring birth rates to replacement should be top priority for all countries.
"Restoring birth rates to replacement level should be top priority for all countries"
𝕏 post · 2026-01-25 · @elonmusk on X · asked by @teslaownersSV · open post ·
He said US births have been below replacement for about 55 years.
"US births have been below replacement for ~55 years"
🎙 Interview · 2026-02 · Elon Musk – "In 36 months, the cheapest place to put AI will be space" · asked by Dwarkesh Patel (with co-hosts) · watch at 1:36:06 · transcript ·
US birth rate below replacement since ~1971; the US can't win on the human front.
"The US birth rate's been below replacement since roughly 1971"
𝕏 post · 2026-02-17 · @elonmusk on X · open post ·
He said population collapse has been underway for many years.
"Population collapse has been underway for many years"
𝕏 post · 2026-06-06 · @elonmusk on X · open post ·
He said India's birth rate has fallen below replacement, and among the most educated it fell below replacement many years ago.
"India’s birth rate has fallen below replacement. Among those most educated, India’s birth rate fell below replacement many years ago."
𝕏 post · 2026-07-22 · @elonmusk on X · open post ·
He said the Swedish people are slowly dying out, with birth rates well below replacement for many decades.
"The Swedish people are slowly dying out. Birth rates have been well below replacement for many decades."
𝕏 post · 2026-07-25 · @elonmusk on X · open post ·
He said low birth rates from prosperity and low external danger are the primary reason Rome and most powerful civilizations collapsed.
"A low birth rate due to extended periods of prosperity and low perceived external danger is the primary reason that Rome and most other powerful civilizations collapsed. Rome had a very high birth rate when under extreme pressure from Carthage and a low birth rate a few generations after Carthage, their last serious threat, was finally destroyed."
𝕏 post · 2026-07-31 · @elonmusk on X · open post ·
He said Western birth rates are a blend of ~90% at half replacement fertility and ~10% at double replacement, and demographics is destiny.
"This is extremely important to understand. The birth rate you see in the West is the BLENDED number of ~90% who have a fertility rate half that of replacement and ~10% who have a birth rate double that of replacement. Demographics is destiny."

Last updated: 2026-07-31 (newest answer).

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