Human extinction; is it avoidable? Are there any plausible theories on how humans could survive forever?

Human extinction; is it avoidable? Are there any plausible theories on how humans could survive forever?

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nothing will escape the end of our sun. beyond that nothing will escape the eventual end of our universe. no matter how tech savvy a civilization becomes, they cant escape it.

We have a few billion years before earth is destroyed by the sun. Hopefully we'll be a space travelling species by then on a large scale but chances are, an asteroid will destroy us before we get a chance.

yes

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>Human extinction; is it avoidable?
On a long enough timeline, it is unavoidable. Here's a list of possibilities, from soonest to latest:
>1. Threats from outside of Earth - constant threats
>1a. Large meteor impact
>1b. Gamma ray burst
>1c. Black hole or stray planet in our solar system
>1d. Extraterrestrial intelligence
>2. We could cause our own extinction - constant threat
>2a. Nuclear war
>2b. Emerging technologies & scientific mishaps
>2c. Genetic engineering
>3. Massive climate change - a few hundred to thousands of years
>3a. Human-accellerated changes, as above
>3b. Supervolcano eruption
>3c. Changes in Milankovitch cycles
>3d. Continental layout
>4. Evolutionary competition - millions of years
>5. Solar activity
>5a. Increase in solar output due to shortage of hydrogen - 1b years
>5b. Sun becomes a red giant - 8b years
>6. Destruction due to collision between Milky Way and Andromeda - 4b years
>7. End of the universe:
>7a. Heat death, if theory is true - 1 to 100 trillion years
>7b. Other ends - unknown, and no clear timeline can be established.

I thought he was getting thrown out of a plane at first. Anyways, given more than a couple hundred thousand years we'll have transformed into something else, but I think our descendants could well stick around till late in the game with heat death looming.

Why are white ppl so anxious all the time?

because of niggers

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You savage WTF.....

Your nigger larp score...
>0/10

Ya. That's not it

I think we will destroy ourselves but our legacy will live on in the form of artificial intelligence.

Also jews

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better than all the post-fappening Yea Forumseddit threads.

All it would take is a nuclear winter caused by increased global warming or an actual nuclear war caused by stupid humans like Trump and Putin.

Humans had their shot. Now nature has selected them.

this thread has gone extinct

Bullshit it's the top fucking hit in the catalog.

We need to get into space ASAP and set up self-sustaining colonies. It would actually be cheaper and easier than you think if we can skip the "terraform Mars" bit in favor of hollowing out asteroids and using spin gravity to create a liveable space.

Once we have these small colonies in space, it will be super hard to permanently kill of all of humanity. Our biggest threat, asteroids and solar flares, are only a threat because humanity is concentrated in one place. As soon as we have independent colonies, it won't matter if Earth gets hit. Hell, we could even terraform Earth back into liveability if we wanted to.

Even if five or even ten of these colonies were wiped out, it wouldn't matter if we had even one left because there's a fuckton of asteroids to make more of which we could keep doing constantly for hundreds of years. We could even outlive our solar system since these colonies make for perfect interstellar arks. We wouldn't even have to worry about finding a system with habitable planets, or heck, even planets, just one with a bit of space junk floating around it's star.

That's the most low-tech solution I have. There are more high-tech solutions if anyone's interested.

. Destruction due to collision between Milky Way and Andromeda - 4b years
is not a threat
galaxies are mostly made of empty space, if the sun was the size of a green pea (5mm diameter) the nearest stars would be 2.5 km away
at this scale, this 100 billion peas galaxy would extend over 15000 km
two galaxies colliding with each other give a very low (much less than 0.1%) probability to have ONE stellar collision, and exponentially less to have two, and there is only a 1/100 billion chance it might be the sun
so the galactic merger between Milky Way and Andromeda is not a threat

what will happen however is that the interstellar molecular clouds in both galaxies will collide and cause eddies that will contract and form gravitational attractors that will give birth to Mmmmillions of new stars all over the place

We have to start eating humans, don't you listen to Greta?!

I dont know fam, we have barely scraped the surface of the universe. We just started studying it. People swore we would never fly.

>We need to get into space ASAP and set up self-sustaining colonies
We actually have an ocean that takes up 70% of the planet we by and large haven't explored yet. Being underwater is much the same thing as being on a planet like Mars, except Earth has living things under the surface.

You should be fed to Trump.

We could have cold fusion in the next 10-20 years.

We'd be gone long before the heat death of the universe. That's just when there's no energy differential left and the universe has reached maximum entropy. Energy that we could harness would have been gone for ages before then.

The point of having many self-sustaining colonies is that it would be pretty unlikely for something to be able to kill them all. If we just colonize the oceans, that fixes nothing.

Isaac Arthur fan?

If it’s possible for the rest of time then it will probably happen eventually. I think it’s somewhat likely in the next couple centuries.

I see. I thought you were strictly talking about resources. But Earth could go extinct from nuclear winter and the environmental controls on whatever planet could fuck up and suffocate everyone.

We have no idea what’s out there. If we make it another 1,000 years we might have a different outlook.

true... but the universe is expected to contract back in itself eventually, due to gravitational force. its doubtful humans will even be around then anyway

But if you have a spin-gravity supported colony on every medium-sized asteroid in a solar system, it's unlikely that ALL of the colonies would get destroyed, especially if you kept expanding and making new ones.

If we don't destroy ourselves, eventually we will learn how to evolve into beings of pure light like what we call angels. This will also be long before the universe "ends."

We almost certainly will. Only 30 years ago, the idea of a pocket-sized computer capable of generating 3D imagery and other complex computations was science fiction. Now it's something that relatively poor people can easily acquire.

1000 years from now, the world will be basically unrecognizable.

I'm still accounting for human error. Though granted, we could be doing The Expanse in the next 100 years if we're lucky.

>the universe is expected to contract back in itself eventually

That's not true. That's certainly a plausible theory, but the current evidence would suggest that the expansion of the universe is actually accelerating, not decelerating. Most cosmologists currently believe that the universe will continue to expand infinitely.

Even accounting for human error, it's unlikely for someone to fuck up a colony with a stupid mistake without said colony setting up three more due to how cheap they would be to make compared to terraforming a planet.

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yeah i, too, thought he was throwing it out of a plane. we're dumb, but we're dumb together.

you could remove the jews, I think then we will probably skyrocket into the future and even develop a way to create heaven through science.

but instead, they will likely have the means to kill us all within 10 years.

oh well, worlds already pretty shit because of all the things they've done.

How many of those happened in DC, Detroit, or Chicago?

I thought he was going to throw that puppy out of a plane.

You never know, terraforming might end up being the totally cheap route, just the side effects you'd have to worry about like Bowden's Malady.

It's a question of scale. Transforming an entire planet into a habitable space is a lot harder than transforming a space inside a rock. Plus, a colony in an asteroid doesn't have to deal with the problems gravity wells cause to space travel. And it's a lot easier to relocate an asteroid than a planet.

interesting.

Living without gravity causes all sorts of health problems, though. Not to mention, without an atmosphere and planetary magnetic field, the radiation would be a nightmare.

What kind of health problems?

We won't need to live without gravity because centrifugal force and gravity are the same thing as far as the human body is concerned.
And the physical mass of the asteroid we put the colony inside, as well as the ground the colonists stand on, would be able to shield against radiation for it to not be a big problem, or at least not one that makes it impossible to live in space.

No species is able to escape genetic mutation, eventually "Humans" as we know it will become something else, also.. all life is transient, nothing lasts forever.
Eventually the universe will go dark, no "work" will be able to be done, it will be a sterile place at absolute zero.

See "heat death of the universe"

Low bone density, issues with blood circulation, muscular degeneration, fluid redistribution. Basically, our bodies are used to having constant forces applied to everything.

Like how blood rushes to your head when you're upside down. Because your body is used to gravity pulling blood down into your feet, and it's designed to fight against that pull.

We could go extinct by our own means in less than 100 years.

we could go extinct tomorrow via planet sterilization of a Long GRB.

>centrifugal force
Sure, there are concepts for that, but actually building a livable space that spins at that speed is no easy task. Unless you're talking about spinning the whole asteroid, which causes a whole different set of problems.

As for the living underground, that's fine. It would work. But it's not much of a life. Never going outside, never seeing the sun, or nature. I guess you could fake nature indoors, but it sounds rather unpalatable to me.

Space and the inside of an asteroid have no outside forces so relatively, a spinning living space should be the same as a living space that's still as long as there's no sudden acceleration.
Some designs have living spaces with the main chamber's surface area being the size of a small county so regardless, you could have a natural-seeming space much larger than the average medieval peasant would ever see. You could even use mirrors to somehow give that space real sunlight.

Sure, I'm not saying you couldn't build it any size theoretically. I'm just saying that the act of actually building it isn't as simple as it seems. Like do you build it in motion, or build first, spin second? Also, hollowing out that much space inside an asteroid would be a massive undertaking.

turn the earth into a spaceship and collapse our sun into a black hole to use as a space warping engine, find a new solar system and drop earth into orbit, repeat until heat death

What if artificial intellegence comes up with a solution we can't conceive of?

then AI will have been our masters for quite some time... would you really want a situation like that?

I'm skeptical about general AI. Like, you'd have to be supremely stupid to give something like that access to things like the internet.

Implying it wouldn't be able to get intelligent enough to find a workaround.

What's to say we haven't before and just come back. Maybe were like the X number of times that humanity flourished

It couldn't. The only information it could get is what you provide it with. I think. I'm not a computer scientist, so I may be wrong.

yes, the ai can stop our sun from exploding or prevent a meteor and other natural disasters from occurring

Yea Forums is most certainly dead.

Kill the Muslims and Jews and maybe we'll live another few millennia

What are you, the arbiter of good shitposting?

You would probably build it in motion, spin it while it's still an empty metal cylinder, then move things in.

Hollowing out that much space inside an asteroid wouldn't actually be that hard since we don't have to overcome a gravity well. All we have to do is keep digging.

No, there's a reason zoomers are known as gen z.

We will die of war well before tdd his becomes relevant, but.
Sun expansion: probable.
Universal "heat death": speculation, and unprovable, tantamount to religious dogma.

>all these heat death responses
It's just wild speculation with absolutely no proof.

Sure, but it's still an absolute shitload of material to move.

As is the big bang theory. They're just the predicted results using the predictive models that have been shown to be the most accurate thus far. Nobody is saying that they're incontrovertible fact. In fact, most scientists are happy to explain that literally anything can change in scientific knowledge.

can't get energy from nothing if entropy is at max for the entire universe.
Unless there is a big crunch (also speculative), heat death is inevitable.

We move more material digging the average subway tunnel and a lot of the effort is lifting the material out of the tunnel to ground level ie overwhelming gravity wells.

Maybe if we stop breeding so damn much and stop producing greenhouse gasses. Currently, ocean acidification is reaching extinction levels, but people are still arguing about whether or not it's real. We're currently not equipped to survive our own desires.

That's true only if you make the assumption that our current predictive models are complete and accurate.

Heat death assumes that the expansion of the universe can over come gravity, electromagnetism, and the strong and weak nuclear forces.
Which is cant.

But digging a subway tunnel takes a long time, and is accomplished in part due to gravity. It's kind of hard to dig into something if you can't plant yourself firmly in place.

And yes, I know there are workarounds. I'm just saying it's not like it's easy.

The strong and weak nuclear forces are basically irrelevant at the scales you're talking about. Hell, they're basically irrelevant at much smaller scales.

Electromagnetism would be irrelevant because there wouldn't be anything to generate magnetic fields, and certainly not ones on that scale.

And again, according to the current model, the expansion caused by dark energy would greatly outdo gravity.

/thread.

you are thinking too short term, assume we have solutions to those, then what?

Humans wont go extinct retard
Africa Will double in population by 2050

No human is under threat of extinction except White people

Well it depends. Is our universe the only one. If not then we could leave our fading universe for a new one. That's if the Multiverse theory is true. If not we will fade into radiation.

/pol/ leave

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I think if we don't kill ourselves with nukes first, then we might be alright for a long time, till the sun expands burning us all alive. But thats along time from now, I think humans will have made it off this rock by then. soooooooo idk prolly space aids.

i hope ours is not alone. think of all the beautiful material created by humans alone, that stands to be obliterated.

damn we were pretty close. war, and sun expansion are seriously the most likely tho.

The alternative is perpetual risk of extinction so I hope we get started in the next fifty years.

you are thinking too short term, long view, genius, bigger timeframes.

sadly no, we are a destructive species that will eventually destroy are selfs and this plant.

also I liked on the recaptcha I am a robot...

Lmao at eve carson
Fuck that ho

I agree, we do need to occupy more than just Earth.

Then again, all things come to an end eventually. What's the long term goal of the perpetuation of our species?

I believe our extinction will be our own fault, and will happen some time before 3,000AD. The two most likely ways in my mind are either us rocketing past Earth's human carrying capacity because people are just that fucking stupid, and we'll all suffer until enough people go insane to kill everyone and themselves. The other, is far more out there, but I wouldn't be surprised at this point. The second theory is linked to the Global Elite Pedophile Ring. It's possible children were being used to hold back some demonic entity, and once the Ring falls apart, it will destroy Earth. Either that, or the Ring will continue and enough will be sacrificed that the entity gets bored and destroys the planet anyways.

Me gaining life-extension technology and not having to die.

I used to think that was the ideal. But there will come a time when you don't belong anymore. When the modern world no longer makes any sense to you.

We die for a reason.

We don't have one. In realizing that once we became sentient, we should have all gone insane and killed ourselves, that's likely how sentient species were kept from raping Earth in the past, but we persisted because of our ability to create stories, and to use those stories to give us meaning, religion.

As the old adage goes, curiosity killed the cat, so if we ever do make it to space in the long term, it would most likely be an outside disease we have no way of fighting, your Space AIDS, that would kill us before we could cure it. That's if the psycho running NK doesn't nuke the shit out of another nuke-holding country and start the first species-initiated extinction event first.