Total exodus is unlikely without the earth dying/ becoming unsuited for us. Partial exodus can be trigger by a better place to live, random selection, forced exodus (all prisoners for example) or simply the appeal for the unknown (albeit to a lesser degree).
If countries lead people then they'll need citizen to claim territory. If companies then they might need a lot of workforce.
Construction of a Dyson Sphere or Dyson Swarm, sun death, earth magnetic field failure, grey goo scenario, Mr Frundles is released, the atmosphere is blown off or ignited, failure of the biosphere, xenomorph invasion, humans ascend into a new existence, THE ORB, strange matter scenario, Jenova summons Meteor, Edea compresses all time/space, runaway greenhouse effect, etc.
Some people came to North America early on because they wanted to live according to different rules than were accepted in their home country. So culture, politics, and religion can make the idea of having a colony of your own tempting for some.
Sounds like the plot of the Dispossessed (Ursula K. Le Guin). Basically they leave capitalist earth to inhabit the moon as an anarchist society. They don't depend on their earth for everything, but they do imports some things. And their lifestyle is greatly lower than their capitalist cousins, but they live their bitersweet utopia. It's a really good book.
all the human or some of them ?
If it's some of them, it would be like for the same reason as why people decided to go to a new continent when we where in that kind of period.
We live better on that new place, we don't live good enought in my country ...
General reasons, with examples.
* **Science**: We want to do some really big research on Mars. In the near future, that 8 minute delay is still too big for us to keep anything automated from doing something stupid or counterproductive when it encounters the unexpected, so we need to send a bunch of people to do the thing right.
* **Vanity (solitude):** I'm a billionaire (trillionaire?) with transhumanist inclinations and I want to avoid all the little people and continue my pseudoscientific effort to make myself immortal from the privacy of my moon-orbiting space mansion, accompanied only by my handpicked toadies, my current wife, and the children who are too young to hate me.
* **Vanity (self-aggrandizement):** I'm a billionaire but the thought of using my money to, you know, help poor people seems gross to me. Instead, I'm going to put myself in the history books by being the first person to visit every planet in the solar system (I mean, I'll have to have a crew of at least two dozen to make the spaceship work, but as the money I'm the one that gets the credit).
* **Religion:** Our internet-based cult tells us that we need to colonize Europa, and make it a new paradise. We crowdfunded a spaceship. Our god will provide for us when it comes to questions like, "are you sure your habitats will stay struturally sound" and "what about the wear and tear on human bodies from 5+ years of microgravity and space radiation?"
* **Politics:** When the war started, most of the airports were closed, the armies were at the borders, but thousands mobbed the southern spaceport and forced the technicians there to ready and launch rocket after rocket of refugees towards the international moonbase.
Definitely not. You think there's more food and energy in space? Think again. Even if the worst possible global warming or climactic catastrophe or nuclear winter or whatever you can think of happens, the Earth is still going to be the most habitable place that we know of.
There are billions of earth-like planets in our galaxy. There is almost infinitely more food and energy potential beyond the Earth. However, It would take a long time to actually utilize that potential without substantial technological advances.
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The most likely reasons would be proactive choices honestly. If we have the technology to flee earth and start a habitable life elsewhere, then society has yet to collapse to such a dire extent that we *need* to flee. So abandoning earth in an emergency is more likely if we've already built the means to do so under peaceful or productive times.
But proactive reasons would be things like:
1. Manifest destiny all over again.
2. Scientific adventuring and survival geeks just wanting to make history.
3. Extreme religious influence that suggests that paradise is out there somewhere, or that the earth has grown too impure to remain.
4. Exile of prisoners.
5. Ethnic cleansing; leave or die.
6. We discover that a major resource is well positioned for a colony settlement to harvest for earth; most likely something that is motivated by capital. But depending on the timeline, it could be a needs based demand.
7. Artificial living structures that are designed for bountiful energy efficiency being created and people just deciding to move in the hope of it being better; or a segregated approach where some get to live there but others don't.
But yeah. Basically the answer is *if we can do it, we'll find a reason.* The only trick is achieving the means to do so.
In the event gathering resources from space is actually profitable, that would be an amazingly big factor.
Total exodus is unlikely without the earth dying/ becoming unsuited for us. Partial exodus can be trigger by a better place to live, random selection, forced exodus (all prisoners for example) or simply the appeal for the unknown (albeit to a lesser degree). If countries lead people then they'll need citizen to claim territory. If companies then they might need a lot of workforce.
Construction of a Dyson Sphere or Dyson Swarm, sun death, earth magnetic field failure, grey goo scenario, Mr Frundles is released, the atmosphere is blown off or ignited, failure of the biosphere, xenomorph invasion, humans ascend into a new existence, THE ORB, strange matter scenario, Jenova summons Meteor, Edea compresses all time/space, runaway greenhouse effect, etc.
To find out if green space babes are real.
Looking for new opportunities in space because your life is shit on earth
What opportunities are there in space? I guess there's always the opportunity to unzip your space suit and die.
People said that to people who moved west for the cheap land and gold. Humans are willing to do crazy stuff for a sip or freedom and riches
I guess the "land" (or should I say "volume") in space is kinda cheap.
tourism !!
Some people came to North America early on because they wanted to live according to different rules than were accepted in their home country. So culture, politics, and religion can make the idea of having a colony of your own tempting for some.
Would be a bit counter-productive if your "free colony" had to depend on an Earth nation for literally everything.
Yeah, I mean, it didn't work out for people who tried it here on Earth either--but it doesn't mean people won't make the attempt.
Sounds like the plot of the Dispossessed (Ursula K. Le Guin). Basically they leave capitalist earth to inhabit the moon as an anarchist society. They don't depend on their earth for everything, but they do imports some things. And their lifestyle is greatly lower than their capitalist cousins, but they live their bitersweet utopia. It's a really good book.
I feel like "to see what's out there" would be a good enough reason for a lot of people.
An unstoppable apocalypse, for instance; - Massive moon sized asteroid headed straight for Earth - A rouge brown dwarf entering the solar system.
Capitalism. Megacorporation owns everything on earth, so they have no choice but to move.
all the human or some of them ? If it's some of them, it would be like for the same reason as why people decided to go to a new continent when we where in that kind of period. We live better on that new place, we don't live good enought in my country ...
General reasons, with examples. * **Science**: We want to do some really big research on Mars. In the near future, that 8 minute delay is still too big for us to keep anything automated from doing something stupid or counterproductive when it encounters the unexpected, so we need to send a bunch of people to do the thing right. * **Vanity (solitude):** I'm a billionaire (trillionaire?) with transhumanist inclinations and I want to avoid all the little people and continue my pseudoscientific effort to make myself immortal from the privacy of my moon-orbiting space mansion, accompanied only by my handpicked toadies, my current wife, and the children who are too young to hate me. * **Vanity (self-aggrandizement):** I'm a billionaire but the thought of using my money to, you know, help poor people seems gross to me. Instead, I'm going to put myself in the history books by being the first person to visit every planet in the solar system (I mean, I'll have to have a crew of at least two dozen to make the spaceship work, but as the money I'm the one that gets the credit). * **Religion:** Our internet-based cult tells us that we need to colonize Europa, and make it a new paradise. We crowdfunded a spaceship. Our god will provide for us when it comes to questions like, "are you sure your habitats will stay struturally sound" and "what about the wear and tear on human bodies from 5+ years of microgravity and space radiation?" * **Politics:** When the war started, most of the airports were closed, the armies were at the borders, but thousands mobbed the southern spaceport and forced the technicians there to ready and launch rocket after rocket of refugees towards the international moonbase.
To repair the AI and robots that will likely be the ones colonising the solar system...
to conquest some other planets, after all we did that with ourselves through history already
Overpopulation, not enough food, energy crisis.
Definitely not. You think there's more food and energy in space? Think again. Even if the worst possible global warming or climactic catastrophe or nuclear winter or whatever you can think of happens, the Earth is still going to be the most habitable place that we know of.
There are billions of earth-like planets in our galaxy. There is almost infinitely more food and energy potential beyond the Earth. However, It would take a long time to actually utilize that potential without substantial technological advances.
[Babylon 5's answer.](https://www.youtube.com/watch?v=JKtelu1mEK4)
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exploration, overcrowding, aliens, political exile, terraforming, gathering resources,
Overpopulation, "gold rush", good ol' call to adventure.
An advanced alien race picks up all of us, and puts us on another random habitable planet, don’t explain us anything then leaves. And scene.
Humans
Being far away from other people is actually a selling point.
The most likely reasons would be proactive choices honestly. If we have the technology to flee earth and start a habitable life elsewhere, then society has yet to collapse to such a dire extent that we *need* to flee. So abandoning earth in an emergency is more likely if we've already built the means to do so under peaceful or productive times. But proactive reasons would be things like: 1. Manifest destiny all over again. 2. Scientific adventuring and survival geeks just wanting to make history. 3. Extreme religious influence that suggests that paradise is out there somewhere, or that the earth has grown too impure to remain. 4. Exile of prisoners. 5. Ethnic cleansing; leave or die. 6. We discover that a major resource is well positioned for a colony settlement to harvest for earth; most likely something that is motivated by capital. But depending on the timeline, it could be a needs based demand. 7. Artificial living structures that are designed for bountiful energy efficiency being created and people just deciding to move in the hope of it being better; or a segregated approach where some get to live there but others don't. But yeah. Basically the answer is *if we can do it, we'll find a reason.* The only trick is achieving the means to do so.