The future is vast – what does this mean for our own life?

If we manage to avoid a large catastrophe, we are living at the early beginnings of human history.

The point of this text is not to predict how many people will ever live. What I learned from writing this post is that our future is potentially very, very big.

If we keep each other safe – and protect ourselves from the risks that nature and we ourselves pose – we are only at the beginning of human history.

Our actions today impact those who will live in that vast future that is ahead of us.

The fact that our actions have an impact on the large number of people who will live after us should matter for how we think about our own lives. Those who ask themselves what they can do to act responsibly towards those who will live in the future call themselves 'longtermists'. Longtermism is the ethical view that we should act in ways that reduce the risks that endanger our future, and in ways that make the long-term future go well.1

Our past

Before we look ahead, let’s look back. How many came before us? How many humans have ever lived?

It is not possible to answer this question precisely, but demographers Toshiko Kaneda and Carl Haub have tackled the question using the ​​historical knowledge that we do have.

There isn’t a particular moment in which humanity came into existence, as the transition from species to species is gradual. But if one wants to count all humans one has to make a decision about when the first humans lived. The two demographers used 200,000 years before today as this cutoff.2

The demographers estimate that in these 200,000 years about 109 billion people have lived and died.3

It is these 109 billion people we have to thank for the civilization that we live in. The languages we speak, the food we cook, the music we enjoy, the tools we use – what we know we learned from them. The houses we live in, the infrastructure we rely on, the grand achievements of architecture – much of what we see around us was built by them.

Our present

In 2022 7.95 billion of us are alive. Taken together with those who have died, about 117 billion humans have been born since the dawn of modern humankind.

This means that those of us who are alive now represent about 6.8% of all people who ever lived.

These numbers are hard to grasp. I tried to bring it into a visualization to put them into perspective.4

It’s a giant hourglass. But instead of measuring the passage of time, it measures the passage of people.

Each grain of sand here represents 10 million people: each year 140 million babies are born. So we add 14 grains of sand to the hourglass. Every year, 60 million people die; this means 6 grains pass through the hourglass and are added to the large number of people who have died.5

Our potential future

How many people will be born in the future?

We don’t know.

But we know one thing: The future is immense, and the universe will exist for trillions of years.

We can use this fact to get a sense of how many descendants we might have in that vast future ahead.

The number of future people depends on the size of the population at any point in time and how long each of them will live. But the most important factor will be how long humanity will exist.

Before we look at a range of very different potential futures, let’s start with a simple baseline.

We are mammals. One way to think about how long we might survive is to ask how long other mammals survive. It turns out that the lifespan of a typical mammalian species is about 1 million years.6 Let’s think about a future in which humanity exists for 1 million years: 200,000 years are already behind us, so there would be 800,000 years still ahead.

Let’s consider a scenario in which the population stabilizes at 11 billion people (based on the UN projections for the end of this century) and in which the average life length rises to 88 years.7

In such a future, there would be 100 trillion people alive over the next 800,000 years.

The chart visualizes this. Each triangle represents 7.95 billion people – it is the green triangle shape from the hourglass above and corresponds to the number of us alive today.

Each row represents the birth of half a trillion children. For 100 trillion births there are 200 rows.

If you disagree with the numbers I use in my scenario it is easy for you to see how different numbers would lead to different futures. Here are two examples:

  • If you think the world population will stabilize at a level that’s 50% higher than in my calculation, then the number of future births will be 50% higher. The chart would be 50% wider. It would show the births of 150 trillion children.
  • If you think the world population will have a size of just one billion people, then the chart would be only an eleventh as wide and would show 9.1 trillion births.8

The chart shows how many children might be born in the next 800,000 years, a future in which humans survive for as long as a typical mammalian species.

But, of course, humanity is anything but “a typical mammalian species.”

One thing that sets us apart is that we now – and this is a recent development – have the power to destroy ourselves. Since the development of nuclear weapons, it is in our power to kill all of us who are alive and cause the end of human history.

But we are also different from all other animals in that we have the possibility to protect ourselves, even against the most extreme risks. The poor dinosaurs had no defense against the asteroid that wiped them out. We do. We already have ​​effective and well-funded asteroid-monitoring systems and, in case it becomes necessary, we might be able to deploy technology that protects us from an incoming asteroid. The development of powerful technology gives us the chance to survive for much longer than a typical mammalian species.

Our planet might remain habitable for roughly a billion years.9 If we survive as long as the Earth stays habitable, and based on the scenario above, this would be a future in which 125 quadrillion children will be born. A quadrillion is a 1 followed by 15 zeros: 1,000,000,000,000,000.

A billion years is a thousand times longer than the million years depicted in this chart. Even very slow-moving changes will entirely transform our planet over such a long stretch of time: a billion years is a timespan in which the world will go through several supercontinent cycles – the world’s continents will collide and drift apart repeatedly; new mountain ranges will form and then erode, the oceans we are familiar with will disappear and new ones open up.

But if we protect ourselves well and find homes beyond Earth, the future could be much larger still.

The sun will exist for another 5 billion years.10 If we stay alive for all this time, and based on the scenario above, this would be a future in which 625 quadrillion children will be born.

How can we imagine a number as large as 625 quadrillions? We can get back to our sand metaphor from the first chart.

We can imagine today’s world population as a patch of sand on a beach. It’s a tiny patch of sand that barely qualifies as a beach, just large enough for a single person to sit down. One square meter.

If the current world population was represented by a tiny beach of one square meter, then 625 quadrillion people would make up a beach that is 17 meters wide and 4600 kilometers long. A beach that stretches all across the USA, from the Atlantic to the Pacific coast.11

And humans could survive for even longer.

What this future might look like is hard to imagine. Just as it was hard to imagine, even quite recently, what today might look like. “This present moment used to be the unimaginable future,” as Stewart Brand put it.

Our responsibility is vast

A catastrophe that ends human history would destroy the vast future that humanity would otherwise have.

And it would be horrific for those who will be alive at that time.

The people who live then will be just as real as you or me. They will exist, they just don’t exist yet. They will feel the sun on their skin and they will enjoy a swim in the sea. They will have the same hopes, they will feel the same pain.

‘Longtermism’ is the idea that people who live in the future matter morally just as much as those of us who are alive today.12 When we ask ourselves what we should do to make the world a better place, a longtermist does not only consider what we can do to help those around us right now, but also what we can do for those who come after us. The main point of this text – that humanity’s potential future is vast – matters greatly to longtermists. The key moral question of longtermism is ‘what can we do to improve the world’s long-term prospects?’.

In some ways, many of us are already longtermists. The responsibility we have for future generations is why so many work to reduce the risks from climate change and environmental destruction.

But in other ways, we pay only little attention to future risks. In the same way that we work to reduce the risks from climate change, we should pay attention to a wider range of potentially even larger risks and reduce them.

I am definitely frightened of these catastrophic and existential risks.13 In addition to nuclear weapons, there are two other major risks that worry me greatly: Pandemics, especially from engineered pathogens, and artificial intelligence technology. These technologies could lead to large catastrophes, either by someone using them as weapons or even unintentionally as a consequence of accidents.14

Large risks are not only a problem in the future — they are a reality now

We don’t have to think about people who live billions of years in the future to see our responsibilities. The majority of today’s children can expect to see the next century. Some of our grandchildren might live long enough to see the 23rd century. A catastrophe in the next decades would be horrific for people very close to us.

The focus of this text is the long-term future, but this shouldn’t give the impression that the risks we are facing are confined to the future. Several large risks that could lead to unprecedented disasters are already with us now. The use of the nuclear weapons that exist at this moment would kill millions immediately and billions in the ‘nuclear winter’ that follows (see my post on nuclear weapons). Not enough people have registered how the situation we are in has changed. AI capabilities and biotechnology have developed rapidly and are no longer science fiction; they are posing risks to those of us who are alive today.15

Similarly, this text focuses mostly on the loss of human lives, but there would be other losses too: nuclear war would devastate nature and the world’s wildlife; existential catastrophes would destroy our culture, our civilization.

The point is that even if we only consider the impact of these risks on the present generation and only consider the potential loss of lives, they’re among the most pressing issues of our time. This is much more the case if we consider their impact beyond mortality and their impact on future generations.

The reduction of existential risks is one of the most important tasks of our time, yet it is extremely neglected

The current pandemic has made it clear how badly the world has neglected pandemic preparedness. This illustrates a more general point. By reducing the risk of the catastrophes which would endanger our entire future – for example, the very worst possible pandemics – we would also reduce the risk of smaller, yet still terrible, disasters, such as COVID-19.

As a society, we spend only little attention, money, and effort on the risks that imperil our future. Only very few are even thinking about these risks, when in fact these are problems that should be central to our culture. The unprecedented power of today’s technology requires unprecedented responsibility.

Technological development made the high living standards of our time possible. I believe that a considerable share of the fruits of this growth should be spent on reducing the risks and negative consequences of particular technologies.

More researchers should be able to study these risks and how we can reduce them. I would love to see more artists who convey the importance of the vast future in their work. And crucially I think it needs competent political work. I imagine that one day countries will have ministries for the reduction of catastrophic and existential risks and some of the world’s most important institutions will be dedicated to the far-sighted work that protects humanity.

It will be too late to react once the worst has happened. This means we have to be proactive; we have to see the threats now.

The current situation in which these risks are hardly receiving any attention is frightening and depressing. But it is also a large opportunity. Because these risks are so very neglected, a career dedicated to the reduction of these risks is likely among the best opportunities that you have if you want to make the world a better place.

Our opportunities are vast too

So far I’ve only spoken about the risks that we face. But our large future means that there are large opportunities too.

Problems are solvable. This is for me the most important insight that I learned from writing Our World in Data over the last decade.

Compared to the vast future ahead, the two centuries shown in this chart here are only a brief episode of human history. But even in such a short period, we have made substantial progress against many large problems.

Given enough time we can end the horrors of today. Poverty is not inevitable; we can achieve a future where people are not suffering from scarcity. Diseases that are incurable today might be curable in just a few generations; we already have an amazing track record in improving people’s health. And we can achieve a world in which we stop damaging the environment and achieve a future in which the world’s wildlife flourishes.

Our children and grandchildren can continue the progress we are making, and they may create art and build a society more beautiful than we can even imagine.


The point of this text was to see that the future is big. If we keep each other safe the huge majority of humans who will ever live will live in the future.

And this requires us to be more careful and considerate than we currently are. Just as we look back on the heroes who achieved what we enjoy today, those who come after us will remember what we did for them. We will be the ancestors of a very large number of people. Let’s make sure we are good ancestors.

For this, we need to take the risks we are facing more seriously. The risks we are already facing are high. Giving this reality the attention it deserves is the first step, and only very few have taken it. The next step will be to identify what we can do to reduce these risks and then set about doing that.

Let’s also see the opportunity that we have. Those who came before us left us a much better world; we can do the same for the many who come after us.


I would like to thank Charlie Giattino, Esteban Ortiz-Ospina, Anders Sandberg, Edouard Mathieu, Hannah Ritchie, and Will MacAskill for their very helpful comments on this essay.

The text and title were last updated on August 10, 2022.

Recommendations on what to read on our long-run future and the risk of existential catastrophes

There are some excellent books and resources:

The future will not just happen to us, it is we who create the world we will live in. Isaac Asimov saw it like this:16

“There are no catastrophes that loom before us which cannot be avoided; there is nothing that threatens us with imminent destruction in such a fashion that we are helpless to do something about it. If we behave rationally and humanely; if we concentrate coolly on the problems that face all of humanity, rather than emotionally on such nineteenth-century matters as national security and local pride; if we recognize that it is not one’s neighbors who are the enemy, but misery, ignorance, and the cold indifference of natural law—then we can solve all the problems that face us. We can deliberately choose to have no catastrophes at all.” – Isaac Asimov

Continue reading on Our World in Data:

Nuclear weapons: Why reducing the risk of nuclear war should be a key concern of our generation

Appendix to ‘The Future is Vast’

How many people have ever lived?

My main data source is the long-run estimate by demographers Toshiko Kaneda and Carl Haub (reference below).

From 200,000 BCE until 2020 they calculate that 116,761,402,413 people were born. 7,772,850,162 of these people were alive in 2020.

Of course the error margins around both of these numbers – especially the historical one – are large, which Kaneda and Haub clearly acknowledge. I’m not using their point estimates – neither in the text nor in the chart – because I think that these estimates, down to the individual person, would suggest a wrong sense of precision.

Older estimates of how many people have ever lived were published by Goldberg (1983) and Deevey (1960). They arrived at lower estimates – of 55 billion and 81 billion respectively. Previously it was thought that modern humans emerged only much later and earlier estimates assumed better health conditions, i.e. lower mortality, of people in the distant past.

I believe the more recent work by Kaneda and Haub is the best estimate that is available. But the large uncertainties and the wide range of different estimates that were published in recent decades should be emphasised.


  • Toshiko Kaneda and Carl Haub (2021) – How Many People Have Ever Lived on Earth?. Published by the Population Reference Bureau.
  • Goldberg (1983) – How many people have ever lived? In Probability in Social Science.
  • Deevey (1960) – The Human Population. In Scientific American.

My update of Kaneda and Haub:

Kaneda and Haub published estimates up to mid-2020.

I updated the figures from Kaneda and Haub for mid-2022 by adding the births in the following 2 years. According to the UN there were 139,975,303 births in 2020 and 139,821,086 births in 2021 (these were estimates published before the pandemic and are not precise observations, but the imprecision of these estimates is small relative to the large uncertainties in the other relevant figures).

This means the total number of people ever born up to 2022 is 116,761,402,413 + 139,975,303+139,821,086 = 117,041,198,802 births

According to the UN 7,953,952,577 people are alive in 2022.

People who died between 200,000 BCE and 2022: 116,921,736,195 - 7,953,952,577 = 108,967,783,618 deaths

Share of people alive today among all people ever born: (7,953,952,577 / 117,041,198,802) * 100 = 6.8%

Calculations for drawing the hourglass visualization: Humanity’s past and present in grains of sand

Each grain of sand represents 10 million people.

Grains to represent today’s population: 7,953,952,577 / 10,000,000 = 795 grains

Grains to represent the dead: 108,967,783,618/ 10,000,000 = 10,897 grains (to not suggest a false sense of certainty around this number I rounded it to 10,900 grains in the visualization).

How large would humanity’s future be if we survived as long as a typical mammal?

The scenario shown in the chart on humanity’s potential future:

Estimates for the average lifespan of mammalian species: Estimates for the average lifespan of mammalian species range from 0.6 Million years (Barnovsky et al, 2011) to 1.7 million years (Foote and Rap 1996).

As a rough midpoint between these two estimates I follow Toby Ord and use 1 million years.

Remaining length of humanity’s existence: As about 200,000 years of history are already behind us we would have close to 800,000 years left.

Size of humanity’s population: According to the UN projections, the global population will continue to increase for the rest of this century, but by the end of the century population growth will be close to zero. The UN demographers expect the world population then to be 10.9 billion people. I’m assuming that population growth continues a bit further into the 22nd century and will then stabilize at 11 billion people.

As emphasized throughout the text I am thinking of this as an illustrative scenario that makes it possible to understand the dimensions we are concerned with. It is not a prediction and as with all scenarios about the far distant future, the reality could turn out to be very different; population growth might continue further or the world population could decline.

Life expectancy in the future: The UN demographers project that many countries will have life expectancies higher than 90 years by the end of the century. The world average life expectancy is projected to be 82 years then. If we assume that the rest of the world population can catch up to the healthiest countries in the period after 2100, then an average life expectancy of more than 90 or 100 years is possible (especially for the more distant future, extremely long life expectancies are imaginable).

I assume a life expectancy of 88 years in my projection. This is higher than the projected global average, but lower than the life expectancies projected for the best-off countries. It is certainly a rather conservative estimate if we consider that we could achieve a future in which health continues to improve.

So these are my assumptions for this scenario:

  • 800,000 years remaining for our species
  • 11,000,000,000 people living at any one time
  • 88 years of life expected for the average person

Taking this together, how many children will ever be born after the year 2022?

(800,000 years / 88 years per person) * 11,000,000,000 people =

100,000,000,000,000 people =

100 trillion people will be born in the next 800,000 years

When will the 1000th generation be born?

In the second chart I added this information as an annotation. One has to make several assumptions to estimate this point in time. Here are my assumptions:

In a world in which the population is stable, every 2 people have on average 2 children who live long enough to have children themselves. This would mean that within each 88 year period there will be as many births as there are people.

For simplicity we can assume that one generation is 22 years long (i.e., on average future people have children when they are 22 years old). This is a nice assumption because it means that each generation is a quarter as long as the life length of people in this scenario.

In this world each generation would be a cohort of 11 billion / 4 = 2.75 billion people.

This means that the 1000th generation from today would be born in 22,000 years from today. (This isn’t exactly correct because there will be population growth in the next century, i.e. it would take a little longer than 22,000 years.)

In these 1000 generations there will be 2.75 billion * 1000 = 2,750 billion births.

That means the number of births in the next 1000 generations would be 346-times larger than today’s world population (2,750 billion / 7.95 billion = 345.9).

How long will it take until as many babies are born as there are people today?

In the second chart I added this information as an annotation.

According to the UN projections there will be 8,036,352,977 children born between 2022 and 2079. This means that there will be as many children born in the next 57 years as there are people alive today.

Calculations for the ‘triangles-chart’:

Humanity’s past, present and future in multiples of each other

The future in multiples of all people ever: 100,000,000,000,000 / 117,000,000,000 = 855-times

The future in multiples of the present: 100,000,000,000,000 / 7,953,952,577 = 12,572-times

The past in multiples of the present:

(117,041,198,802 - 7,953,952,577) / 7,953,952,577 = 13.7 = rounded to 14

One trillion in multiples of the present: 1,000,000,000,000 / 7,953,952,577 = 125.724 = rounded to 126 (This is what I use as the number of triangles per row.)

The number of future births over the next 5 billion years in multiples of today’s population:

625 quadrillion people would be born in this scenario in the next 5 billion years: 625,000,000,000,000,000 people

People alive in 2022: 7,953,952,577 people

625,000,000,000,000,000 / 7,953,952,577 = 78,577,285

How large could humanity’s future be if we survived for even longer than a typical mammal?

1.5 million years remaining: If Homo sapiens survives as long as Homo erectus

How long has Homo Erectus existed?

Homo erectus is an extinct species of archaic humans. It is  among the first recognizable members of the genus Homo. It was also the first human ancestor to spread throughout Eurasia,

Homo erectus survived for at least 1.7 million years. The oldest fossils regarded as Homo Erectus are the Dmanisi specimens from present-day Georgia, dated to 1.8 million years ago (Lordkipanidze et al, 2006). The most recent fossils are from present-day Indonesia, and have been dated to 0.1 million years ago (Yokohama et al., 2008).

How large was humanity’s future if we survived as long as Homo erectus?

If we – Homo sapiens – survive as long as Homo erectus we would have 1.5 million years left. Our future would be almost twice as large as shown in the chart in the main text.

Almost 190 trillion children would be born into this world.

This is the calculation:

  • 1,500,000 years
  • 11,000,000,000 people
  • And the average person lives for 88 years

(1,500,000 years / 88 years per person) * 11,000,000,000 people =

187,500,000,000,000 people =

187.5 trillion people would be born in the next 1.5 million years

[Alternatively you could see this by considering that 1,500,000 years is 1.875-times longer than 800,000 years.]

1 billion years: If Homo sapiens survives as long as the earth is habitable

How long will Earth remain habitable? How long will our sun exist?

Astrophysicist Jillian Scudder, Anders Sandberg, and Toby Ord suggest that our planet will remain habitable for roughly a billion years.

Based on the scenario above this would be a future in which 125 quadrillion children will be born.

This is the calculation:

  • 1,000,000,000 years
  • 11,000,000,000 people
  • And the average person lives for 88 years

(1,000,000,000 years / 88 years per person) * 11,000,000,000 people =(1,000,000,000 / 88) * 11,000,000,000 = 125,000,000,000,000,000 people = 125 quadrillion people would be born in this scenario in the next billion years.

A quadrillion is a one followed by 15 zeros (1,000,000,000,000,000).

125 quadrillion is 125 thousand trillion people (According to the short scale).

5 billion years – as long as the sun exists

If humanity survived for as long as the sun exists, 5 billion years.

  • 5,000,000,000 years
  • 11,000,000,000 people
  • And the average person lives for 88 years

(5,000,000,000 years / 88 years per person) * 11,000,000,000 people =625,000,000,000,000,000 people =

625 quadrillion people would be born in this scenario in the next 5 billion years.

625 quadrillion is 625 thousand trillion people.

How to imagine 625 quadrillion births?

625 quadrillion relative to 100 trillion

Over the next 5 billion years: 625 quadrillion = 625,000,000,000,000,000

Over the next 800,000 years: 100 trillion = 100,000,000,000,000

625,000,000,000,000,000 / 100,000,000,000,000 = 6,250

Two ways to illustrate this:

  • The chart would not fit on one page, but would need 6,250 pages.
  • If the chart for the 100 trillion people is 30 cm high, then a chart that shows the future that is 6250-times as long would be 62.5 metres high.

625 quadrillion relative to today’s population

The ratio between today’s world population and the future world population:

625,000,000,000,000,000 / 7,953,952,577 = 78,577,285

The ratio between future people and all people alive today would be 78.6 million to one.

78,577,285 meter are 78,577 kilometer

Making the beach 17 meter wide means it would be 4,622km long (78,577/17). These are 2872 miles.


  1. On longtermism see William MacAskill (2022) – ‘What We Owe The Future’ and literature referenced in the later sections and at the end of this text.

  2. One could also choose a much earlier point in time. Recent research from the Jebel Irhoud site in modern-day Morocco suggests that it could be as early as 315,000 BCE. See: Ewan Callaway (2017) – ‘Oldest Homo sapiens fossil claim rewrites our species' history’. Nature. doi:10.1038/nature.2017.22114.

    But I should also note that for the estimates of the total number of total people it does not matter very substantially. This is because the population size of our species was very low in those early days, and at several times our species was close to extinction.

  3. The majority of them lived very short lives: about one in two children died in the past. When conditions are so very poor and children die so quickly then the birth rate has to be extremely high to keep humanity alive; Kaneda and Haub assume a birth rate of 80 births per 1000 people per year for most of humanity’s history (up to the year 1 CE). That is a rate of births that is about 8-times higher than in a typical high-income country and more than twice as high as in the poorest countries today (see the map). The past was a very different place.

  4. As noted in this visualization, this is an updated adaptation of a 2013 visualization by Oliver Uberti. You find it on his website. I also recommend having a look at his books, which he co-authored with James Cheshire; they are beautiful data visualization books.

  5. The cited numbers are from the UN’s demographic projection published in the year 2019 for the year 2022 (see here). With the ongoing COVID pandemic the number of deaths is likely going to be higher than expected. You can track ‘excess deaths’ during the pandemic here. In 2021 excess deaths were possibly in the range of 10 million, if the same should be true in 2022 the chart should show 7 instead of 6 grains passing through the hourglass.

  6. All references and calculations are in the Appendix below.

  7. To not clutter this post with footnotes, I have put all my sources and all calculations in a long appendix below this post.

  8. 1 billion is one-eleventh of 11 billion. And 9.1 trillion is one-eleventh of 100 trillion.

  9. All references and all calculations are in the Appendix below.

  10. All sources and calculations are in the Appendix.

  11. Here is the calculation:

    The ratio between 625 quadrillions and the current world population is 78.6 million to one.

    [625,000,000,000,000,000 / 7,953,952,577 = 78,577,285]

    78,577,285 meter are 78,577 kilometer

    Making the beach 17 meters wide means it is 4,622km long (78,577/17).

    These are 2872 miles.

  12. For an introduction to longtermism read Benjamin Todd (2017) – Why our impact in millions of years could be what most matters.

  13. Existential risks are those that can cause human extinction or can permanently curtail humanity's potential so that survivors would not have sufficient means to recover.

    Catastrophic risks are similar in that they are large global risks that could kill billions of people, but they retain the possibility of recovery.

    See for example Future of Life Institute Existential Risks.

  14. AI technology could have the power to transform our world in undesirable ways, either unintentionally or intentionally as a weapon. On the risks – and opportunities of artificial intelligence – I recommend Brian Christian’s book ‘The Alignment Problem – Machine Learning and Human Values’.

    On pandemics – and Global Catastrophic Biological Risks more broadly – I recommend the relatively brief online text ‘Reducing global catastrophic biological risks’ written by Gregory Lewis for 80,000 Hours. In the same publication, you also find a discussion of the risks from extreme climate change: Climate change authored by Benjamin Hilton.

    I consider the four risks that I mentioned – nuclear weapons, climate change, and especially pandemics and AI – to be the most dangerous known risks, but unfortunately these are not the only risks. There are several other risks that could potentially lead to large catastrophes. For a broader discussion of existential risks I recommend The Precipice by Toby Ord.

  15. See the references in the footnote before the previous one.

  16. “Isaac Asimov (1979) – A Choice of Catastrophes: The Disasters that Threaten Our World.

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Max Roser (2022) - “The future is vast – what does this mean for our own life?” Published online at Retrieved from: '' [Online Resource]

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    author = {Max Roser},
    title = {The future is vast – what does this mean for our own life?},
    journal = {Our World in Data},
    year = {2022},
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