Realistically, how could we defend ourselves from an extrasolar

>>34992457
The common cold

Any civilization advanced enough to travel around the galaxy isn't going to be stopped by anything we have.

Honestly, if a species traveled thousands of light years to our planet for the sole purpose to invade, we will probably get wrecked. No if, ands, or buts about it.

The Half Life series is the one that got it right.

>>34992457
Commit war crimes against them. Eat them, rape them, shit like that. They're just space niggers.

>>34992457

Kinda hard to defend ourselves from someone who can drop rocks on our heads with impunity.

>>34992457
we can't.

the spanish explorers fucked up the most powerful kingdom in middle america with their superior technology and gaining support from enemies of the aztec empire.

any alien civilization coming for conquest will either wipe us out with engineered biological weapons, or use the support of enemies of the most dominant powers in the world.

or even better, gain the support of said powers. ill put money on the US being the first to align with alien conquerors if said aliens promise front row seats in the new world order.

If a more advanced civilization were to attack us, they'd either use an army of nanobots (like in the The Day Earth Stood Still movie) or simply blow up Earth in a second with a huge anti matter bomb. And in neither of the two cases we stand the slightest chance of surviving. They would use the nanobot army if they want to eliminate humans but keep Earth, and blow up Earth with an anti matter bomb if they don't need Earth. Keep in mind we are probably less than just one thousand years from developing nanobots and anti matter technologies, and one thousand years is very little on the Universe's timescale, so it's very likely that if there is intelligent life out there, they must have been in the Universe just 0.00001% longer than we have.

>>34992518
This.

If you think that aliens will look like greys and be any where near us in terms of technology then you're retarded.

If aliens exist, and they come here, chances are that they're so much more advanced than us that we won't even be able to comprehend them and their technological advancement.

>>34992531
>1000 years till nano bots

You mean 25 years? We'll see them in our lifetime. Our grandkids will literally be able to upload themselves into the matrix and live forever.

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>>34992457
Depends on the type of aliens, my main man.
This could work on one kind >>34992467
but not on aliens that are like sentient space fire or some shit, or that replicate our immune system like the Thing.

"Alien threat" is way too fucking broad, you don't handle a xenomorph infestation like you handle a covenant fleet.

>>34992562
No. I think most people overestimate technological progress. Nanobots already exist, but we're several decades from developing nanobots with practical applications, like military and medical.

>>34992573
Alright

How would we handle Xenomorphs?

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>>34992602
You know how.

>>34992587
Scientific process doubles every year, eventually that adds up. The hardest part is finding funding.

>>34992629
>Scientific process doubles every year
I hope you know that's to say the progress is linear, not exponential.

>>34992457
No fucking way. You're talking about going up against a species capable of interstellar travel. They could just blow up our planet from space if they wanted to, or engineer a disease to wipe us out if they wanted our planet. (Which they wouldn't.)

>>34992457
Hope and pray that humanity is preserved in some way.

>>34992629
You're thinking of Moore's law and that's not what it says. Moore's law says that the PROCESSING POWER PER DOLLAR, not "scientific progress", doubles EVERY HALF A YEAR, not "every year". "Scientific progress" is a very broad term. Biology has its ups and downs, Physics has its ups and downs, Computer Science has its ups and downs, Math has its ups and downs, and History shows that none of them are correlated.

>>34992702
>Hope and pray that humanity is preserved in some way.
I think a few samples of human DNA would be taken and preserved in cryogenic chambers.
Maybe they'd take some humans and throw us into zoos where, like with animals in our own zoos, we would think we're in the wild while aliens observe us.
Maybe Earth is a big zoo after all.

If aliens do exist and come to our planet, odds are they will absolutely destroy us. You don't travel light years through out the universe and still use shit like ballistic weaponry. The Europeans didn't kill the Indians with spears or clubs, they killed them with guns and disease. The only way the aliens lose is if some dumbass alien gets contaminated with the flu and he ends up dying and spreading it and even then, these aliens have probably done this shit before and have protocols for that situation.
But realistically, why would aliens come to our planet? What does our planet have that they don't? There are plenty of more resource rich worlds in the billions of planets in our galaxy alone. Odds are the aliens have shit like robots that preform their manual labor. Humanity just isn't worth the time to them.

>>34992723
>What does our planet have that they don't?
A surface of water.

>>34992689
>Which they wouldn't
But they would

>>34992505
>>34992689
>>34992723
Think about it, why else would they come here?
Space is full of minerals and resources, so if they came to Earth it would be for something either extremely rare or unique to Earth
Possibly for Biomass or something organic, or possibly to conquer Earth before we have a chance to become star-faring, or as a form of cheap labor
Either way, if they took the trouble to come all the way here then they came for a reason which means they would be unlikely to simply nuke the planet into radioactive dust

>>34992602
>>34992628
Nuke it from space

>>34992457
We'd sit pretty in the knowledge that the only thing of value on our planet, to an alien species apable of at least inter-system travel, is the unique life it possess.
For the sake of OP's question, nothing, we'd lose, if they took offense and wanted to kill us they'd only have to throw rocks.

>>34992736
Ice is fucking common in space and available in vast quantities.


And the answer to OP is Casaba Howitzer Warhead and fuck-all else. If a mooncracker can't kill them nothing can.

>>34992457
Like everyone is saying, the odds of us surviving if any alien race wanted to be rid of us would be almost nil. This goes double if they got here by going faster than light or bending space or some zany shit. That would basically be like fighting gods. It would help us if the aliens didn't have these technologies and just used ships where they were in cryogenic sleep or stasis or they were animalistic like zerg or had some cultural or religious quirk or sense of honor that prevented them from stomping us immediately. Most likely they would have evolved from a predatory species like us. Our best defense in such scenarios would be thunderwells, casaba howitzers, or some trick or ruse if communication can be established.

>>34992736
Plenty of other celestial bodies have water on them. Europa, a moon of Jupiter, supposedly has more water than earth. Ours also is filled with salt and trash. There's also masses of water and ice floating in other places in space. Plenty of other planets with next to no life with surface water too.

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>>34992457
With the state of the world we live in now, we're more likely to get the galactic equivalent of Cubans floating over to Earth on whatever cobbled-together tech they could scavenge in order to escape their totalitarian exosolar regime. Then the UN will allocate space refugees to various countries in proportion to their CO2 emissions, except for China who gets to still pollute the fuck out of the eastern hemisphere for 40 years without having to take any refugees.

>>34992744
If they are that advanced, they most likely have robots too. Robots are much more efficient workers than animals. Animals require food and water and shelter. There are also plenty of other planets in the universe with non-sentient life for biomass. There are possibly billions of habitual planets in our galaxy alone. To think that they would come to earth of all places is absurd in the grand scheme of the universe. Earth just isn't special. And odds are, the aliens have much bigger and more dangerous aliens to worry about in the universe than us. Humanity hasn't wiped out chimpanzees because they could evolve too. We have more dangerous animals to worry about like bears or some shit

>>34992900
what about rare earth theory? we could be the only other planet in the galaxy that supports complex life.

>>34992900
>plenty of planets with non-sentient life

There is zero fucking evidence of that you stupid faggot.

>>34992897
>space Cubans

This is a plausible scenario. I wonder if there are protocols already in place for something like this

>>34992900
Robots, if they could think at all, would be limited by the expensive materials needed to produce intelligent AI
A slave race on the other hand is already intelligent and requires only basic sustenance to survive
Humans evolved as persistence hunters and thus may have more endurance than other intelligent lifeforms. Considering our limited strength could be enhanced and the fact that our social nature makes us susceptible to cult brainwashing, we would make a good slave race.

>>34992917
except for the fact that in ops situation, it turns out there are other planets with life. If it happens twice, it can happen again.

>>34992467
yeah aliens may not even have the same dna structure but maybe they have but they have different amino acids or just different sequences, reducing the rna of any virus to utterly useless against them.

you know how plants don't catch your cold even tho they have their own viruses...

The aliens would have to be only a few hundred years more advanced for us to have a chance. It's possible that there can be a breakthrough in some sort of FTL (warp, wormholes, etc), artificial magnetic fields to protect crafts, more efficient ion or chemical engines, and other various things like cryo-freezing decades ahead of where we currently are. These technologies could give a race of aliens the power to travel to other systems within the confines of fragile, rocket like spacecrafts. We could stand the fight if they decide ti invade for some reason. Only scenario I can logically think of where we can come out on top.

>>34992844
>>34992790
I said a surface of water, not a surface of ice.
Sunlight can't penetrate more than just a few inches of ice and there goes your only chance of having photosynthetic life which is the backbone of every complex food chain and the main biological cause of a hugely diverse planet.

>>34993011
What job would a slave race preform that a robot couldn't? Already we are creating robots that can preform basic functions. If we can do it in 50 years, imagine what a race of aliens that can cross the vast emptiness of space, just to mess with us, could do.

>>34993011
>Humans evolved as persistence hunters
Stop this fucking meme, we have always sucked at hunting, we're opportunistic omnivores at best.

>>34992479
even if they came here from the next star over in a generation ship. in a trip lasting hundreds/thousands of years. They would still be sufficiently advanced enough to shrug off our military. Their only concern would be us ruining the planet through the use of nuclear weapons.

>>34993011
There is a reason we dont use apes as labor. What the hell makes you think our intelligence would be sufficient to make useful workers? Or at least useful enough to justify the cost of coming here in the first place?

>>34993063
>there goes your only chance of having photosynthetic life which is the backbone of every complex food chain
on earth
you left that out
if the core is warm and melted from tidal forces there could be life forms based on completely different biochemicals than ours just from tidal forces or volcanic source of heat.

read some actual classic science fiction, where the writers actually used science to play with the theories in their fiction and not just random reiterations of star trek.

>>34992915
In op's situation, it turns out we aren't the only ones. And even if they come from outside our galaxy, that only means they are more advanced.

>>34993073
How is that a meme? There's a lot of evidence that we were persistence hunters. Also, humans have shown great feats of hunting. Groups of people used to bring down wholly mammoths.

>>34992457
Just let them take and enslave the niggers as appeasement. Give it 200 years and their society will be destroyed.

>>34993073
what a fucking retarded statement is that? a single human can hunt down and kill most animals on the planet by himself. working in teams and using tools makes that a 100% even with neolithic tools.

>>34993109
>Groups of people used to chase mammoths into fjords while irritating them with pointy sticks
FTFY

>>34993109
with tools and by luring it to traps fashioned by tools, or crushing its head with rocks.

without our intellect to fashion tools we'd be shit hunters.

literally every other hunter on this planet is naturally suited for hunting than humans. without the ability to fashion a spear to shish-kebab a charging saber tooth we'd still be living in trees trying to avoid prowling hunters.

>>34993098
How about you reading some actual science instead of """"science"""" fiction? The Cambrian explosion happened only because phytoplankton was a thing, the dead corpses of self replicating photosynthetic beings that lived on the surface of the oceans fell into the depths and that was plenty of organic matter, enough to sustain evolving eco systems. Without photosynthetic life forms, you can't go any further than a few proto-membranes that aren't even considered life forms by many authors. There is water everywhere on the solar system and, by most calculations, beyond it as well, on other planets, moons etc, but the thing is, most of the times, this water isn't on the surface, it's usually below several kilometers of ice or in small drops carried around by comets and the such.

>>34993157
>humans use a different system for hunting so it's not natural
we have a higher form of thinking, using tools was natural for us. it's fair hunting.

>>34993153
also: watch some andrew ucles and grow some brain cells! guy can catch just about anything, rabbits, foxes, wild dogs, kangaroos, sharks, snakes, whatever.
https://www.youtube.com/watch?v=rUiPmHA7Xqg

>>34993153
BULL

FUCKING

SHIT

what are you gonna use to kill a charging bear? a chokehold?

every other hunter that is and ever was has sharp fangs and teeth. what do we have? dull canines and nails that break.

we're shit without tools.

>>34993164
>Without photosynthetic life forms, you can't go any further than a few proto-membranes
you mean it never happened on earth right? stop being stupid and willfully ignorant. you are about as scientific as creationists.

>>34993195
>what are you gonna use to kill a charging bear? a chokehold?
why would you hunt bears alone and barehanded? it's not impossible i'm not saying it is the usual size black bear is absolutely doable. but why would you do that plenty of easier prey. you are not going to exhaust a bear easily. better run down some herbivores.

>>34993195
even without tools select humans in history have still taken on great beasts and won. the smartest hunters can outplay any animal.

>>34992457
We wouldn't know it even happened.
They would just hit earth with a big projectile traveling at near the speed of light. It would be so instant we would never know. Just the whole earth destroyed in an instant.

>Scenario 2

They want the planets resources.
They never have to land until we are all dead.
Just chill at the edge of the solar system and introduce a super virus to earth and wait until we all die out.

The idea of a classic alien invasion is a meme.

>>34993063
You realize that not every ecosystem on earth is based on the sun. At the bottom of the ocean, near mid-ocean ridges, life is based around hydrogen sulfides and heat that pours from hot vents. Look it up chemosynthesis.

>>34993179
triggered much?

if it doesn't grow on our body its not natural. our intellect is a natural ability but saying using tools is natural is a stretch. put a bare, unarmed human next to a bare, unarmed anything that hunts and the human will most likely die.

>>34992776
only way to be sure

>>34993234
>triggered much?
just the idea that a human still has a decent chance of defending themselves is impressive. using environment in specific context should totally count as being a natural ability. being able to now that a sharp rock can kill is a natural ability. accidentally pushing a bear off a cliff would be a different story tho.

>>34992457
There is no reason for aaayys to do anything other than nuke the sun. Any materials they need can be mined from space, including water, in even greater quantity than our planet.

>>34993164
You know there is a thing called Chemosynthesis, right? Entire complex ecosystems have formed at the bottom of the ocean based on bacteria that use chemosynthesis instead of photosynthesis.

>>34992531
Or merely drop a rain of rocks at 7500 m/s Rocks are cheap and gravity does the work. Why mess around with antimatter? (if they even have it)

And have slightly used planet afterward to planoform...

>>34992602
Do a lot of dying.... they are explicitly written to pretty unbeatable.

>>34993195
tribals have hunted down bears with spears and bows... no weapon which would take no more than a few hours of effort to make in normal environments.

>>34992479

I think people aren't considering that first contact with an alien species probably won't b with their military. I mean, if we sent a ship into deep space in the near future it wouldn't have 20mm canon poking out of every window.

If ayylmaos show up on our doorstep it'll probably in an unarmed research ship. Then we can kill them and take their technology.

>>34993342
Even crude bows take several weeks of curing to produce anything with strength capable of killing something larger than a rabbit.

>>34993214
general rule of thumb:
smaller than you -> ambush it!
bigger than you -> run it to the ground!

altho i have used persistence hunting to catch wild goats and fish even and used my bare hands to catch feral cats on a tree and some larger birds too and all. so what the hell do i know about tool-less hunting right?

some of the iconic megafauna is not a good idea to try for a single human sure. that's where you further use your brain, craft tools lure or chase them into traps and cooperate.

>>34993079
>>34992479
You say that, but realize this: we humans could already have at least a handful of generation ships heading out to various star systems by now, if it wasn't for the fact that our time, money, and resources are all split between various countries, companies, governments, and other groups.

A race similar to our own that is hell bent on conquering the stars would be able to do so on a tech level that's no different from ours, they just have to be willing to do it.

We are not.

>>34992457
only chance we would really have would be to wage a guerilla biological/chemical war

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>>34992457
Making signs with:
"WELCOME ALIENS"

>>34992457
https://www.youtube.com/watch?v=qV0I-iA5lJU

>>34992897
>>34992977
Have you seen District 9 ?

I agree that it would be the most likely scenario.

Either refugees or shipwrecked aliens.

The third one is conquest. Slavery is also possible because :
>be aliens
>make robots
>singularity is reached
>aliens win the war against robots (maybe with the help of other aliens)
>ban robots
>need workers
>can't produce robots
>use sentient organic slaves

Seriously, I think very advanced civilizations would fear singularity. They would keep using organic creatures (their own people or ohter life forms) for specific tasks.

They could also be dumb assholes that just retro-engineered another E.T technlogy (like the Goauld in Stargate SG-1)

>>34993362
>if we sent a ship into deep space in the near future it wouldn't have 20mm canon poking out of every window

But it should.

>>34992723
>The only way the aliens lose is if some dumbass alien gets contaminated with the flu

Look at the slightly longer picture; Euros had their way with the New World, marginalizing the inhabitants and making free with the resources they found. Thing is, some of those resources carry their own penalties. Tobacco and cocaine come to mind. Or corn, for that matter. And coffee.

Sure, we'll get invaded, decimated, and marginalized. In return, the invaders get a whole array of life-shortening addictions, obesity, the ET variant of diabetes, and casinoes everywhere.

>>34992457
Give them our wonderful Jews.

>>34992897
We're still going to get some awesome tech benefits from the refugees. China wouldn't get much benefit from having refugees anyhow, since they only copy tech.

Even if all we get is the intergalactic equivalent of car mechanics, Walmart cashiers, and construction workers, that's still a rich trove of alien tech knowledge to mine. Especially with whatever actual gear they bring with them.

>>34992900
>habitual planets

As opposed to the occasional or infrequent kind

>>34992744

That doesn't mean they won't obliterate a few cities in the process and what's cheap/easy? Grab an asteroid of appropriate size on the way in, vaporize a few stubborn cities, and after a few billion dead there won't be much of a resistance. No, need to launch an invasion and if the populace is already pacified it'll make occupation that much easier. Then use what passes as cream of the crop to breed and then exterminate the rest or at the very least neuter them.

Plus, they may have the ability to terraform a planet so killing us all and then rebuilding the planet afterwards would be an easy alternative to dealing with us.

>>34992457
What kind of threat? The most realistic alien threat is a relativistic kill vehicle that smacks Earth at half the speed of light. That's much different from the classic Mothership Over Your City scenario.

>>34993299
>There is no reason for aaayys to do anything other than nuke the sun.

Unless our ability to extract and refine resources is valuable. Plutonium, for instance. They either take it from us as tribute, or trade us baubles in return.

>>34992479
space travel and military power are two different things
Just cause they can travel the galaxy doesn't mean they have star destroyers and military dropships

>>34993224
Sadly those ecosystems still rely on oxygen in the water, which is created by conventional organisms.

>>34994534
What a stupid fucking statement

>This whole thread
>Instantly assuming the ayys are hostile.
>No reaching out to the ayys with offers to fuck.
Comon /k/. Teach the aliens to love cock so they uplift us for free.

>>34994749
He's right. The culture that can get here might have no concept of war, or they might be Spartans. We don't know.

>>34994978

While there is a possibility an Alien species my be benign enough to not initiate military conflict with humans, there is no doubt they would have capabilities beyond our wildest dreams if they chose to kick our asses.

The power and technology needed to traverse the stars with a reasonable amount of time are such that they would have mastered physics and could apply their knowledge to any number of abilities, including military prowess. You don't build the USS Enterprise, and not have the ability to desintegrate a city. The technologies just overlap too much. Look at missile tech on Earth. It directly tied itself to the space program.

Aliens would completely obliterate us in an armed conflict. Hollywood "resistance stories" are pure mental masturbation. Period.

>>34994978
>The culture that can get here might have no concept of war,
I read a book about that once, how aliens in wars never hurt enemy combatants, but destroyed infrastructure while diplomats had a shouting match. Then they find 21st century humans casually cutting each other down, much to their shock. Before long a number of aliens are trying to contact earth and be the first to uplift and then indebt the humans to them in a power grab.

>>34993362
if they have spent any time researching us from orbit, they'll know to bring a fuckton of firepower with them.

>>34992705
Moore's law is every two years, and it stopped applying properly a long time ago.

>>34993362
there's no such thing as an 'unarmed' interstellar spaceship

You could drop a marble out the window at .1c and destroy a city. And they probably would, after X years of listening to our radio and TV

>>34993651

That's an interesting angle I haven't seen prevented before. Aayyys come here for what they knew they wanted already (be it water, whatever other basic elements, habitable environment, etc), and in the process catologue other things too small to catch their attention. Aaayyys get a hold of tobacco or cocaine and despite their advanced tech and intellect they've never been exposed to such concepts and quickly lose their momentum and develop crippling addiction among the entire invasion force

The cold/flu defeating them has been done to death, weakening/distracting them with our drugs is new

>>34992457 (OP)

Nothing, unless there's some suppressed technology being utilized. Or nuclear pumped X-ray lasers did actually work.

If aliens were near our level or few centuries more and FTL and gravity manipulation didn't exist, aliens could be destroyed at least via orbital weapons as they didn't come equipped with dealing with a technological civilization capable of causing mass extinction events.

If said aliens came prepared for even cold war era civilization, they could simply EMP, kinetic bombard, or deploy whatever (significant amount that cannot be dealt with using any known currently used methods) nuclear weapons they are carrying.

I know a lot of military hardware is EMP hardened, but everything else is not. So EMP would still be very devastating as most of you probably know.

>>34992457
if they have FTL travel they could attack our planet from distances we could not even detect them

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If they have the ability to travel between stars, chances are, they have the means to whoop our asses within a night with little to no effort.

Larry Niven made the point once that a ship's propulsion system could also make a devastating weapon if applied properly. Not to mention they'd most likely do their research from afar long before approaching.

>>34992457
Let them take over and fix all our problems, wait several generations for their civilization to get apathetic about the whole imperial ambitions thing and bother them for independence. Poo in loos thereafter

>>34995679
Sauce on that pic?

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>>34995732
>not seeing the text on the pic

I hope you get urethrally probed by ayyliums

>>34995462
>weakening/distracting them with our drugs is new

Nutmeg and maple syrup are the only 2 things I know of as being used to addict aliens. Hell, the next ones we run into could have a genetic predisposition toward sheetrock addiction. Give it a couple of decades and we'll have slums packed full of jittery alien addicts, so broke that they resort to scraping concrete dust from sidewalks to get their fix.

>>34995860
>Nutmeg
It was ginger, but you have good taste in books.

>>34996384
>ginger

Now tell me who wrote that series, because I can't remember. It was a series, right?

>>34992457
They'll show the absolute shitshow that is planet earth. Aliens will feel no empathy and decide to let our world wallow in it's own filth.

Or we'll just destroy ourselves before they even touch us. Can't conquer what's dead.

>>34992457
Glocknades and bouncy .22lr rounds that shred the internals of their space ship.

>>34994748
Incorrect, anaerobes can use entirely oxygen independent methods of cellular respiration.
t.second year molecular biology student.

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do you realize how bad people stink?

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>>34992457
We make anime ship/tank/plane/gun girls to fight them on the battlefield. Maybe add some giant mechs.

>>34993307
this

>>34995338
or maybe they are in need of some warrior niggers like in alan dean fosters call to arms...

>>34992562
I don't think you know how downloads and uploads work.

>>34993497
The technological singularity is about being able to easily predict how a society would react to certain types of technology and about being able to predict what new kinds of tech might be made and how difficult that becomes as more things are discovered or invented, it's not about robot uprisings. And why would you have true sapient AI do menial tasks when you could just have a simpler one do the job instead?

>>34994962
Sorry /tg/, but /k/ would only offer dickings if the aliens are deer.

>>34995028
>there is no doubt they would have capabilities beyond our wildest dreams if they chose to kick our asses.
Can you imagine how hilarious the fuck ups would be in an interstellar empire gearing up for the first war in it's specie's history?

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>>34994962
There was a thread a while ago about the Zentradi from Macross invading Earth. The /k/ommandos in that thread were certainly willing to lie with the enemy.

>>34992562
Remember that lasers have existed for a long time , hell Laserdisc technology was invented in the late 50s , but you would have needed unit the size of a large refrigerator packed with valves (tubes) to run the damn thing.

Optical video recording technology, using a transparent disc,[4] was invented by David Paul Gregg and James Russell in 1958 (and patented in 1961 and 1990).[5][6] The Gregg patents were purchased by MCA in 1968. By 1969, Philips had developed a videodisc in reflective mode, which has advantages over the transparent mode. MCA and Philips then decided to combine their efforts and first publicly demonstrated the video disc in 1972.

>>34992628
Roll in cannisters of CN-20 , nerve gas the whole fucken nest.

>>34993051
let's say they unleash a virus that remains dormant until it has infected every non-botanical organism on the planet , then activates and turns every animal into a pile of slush.

>>34993195
The human brain and tools are our fangs and claws.

You think that humanity having created thermonuclear weapons is less of a threat than a bear ?

>>34992518
>Aliens arm isis to take over the world
>Isis fucks it all up and attacks everyone including the aliens
>Aliens btfo, isis worlds saviors

>>34992457
Probably not unless they came in a generation ship that they launched when they had 60s era technology.

>>34992457
Ayyys with interstellar technology would probably be able to wipe us in ways we can't even detect or understand. Just biological weapons and nanobot shit would wreck us and that would be their lowest tech.

>>34992457
Through understanding

>>34997640
what if they never known war? they might not even understand the concept of weapons.

>Ayys just put a railgun on the moon and lob rocks at Earth
Game over

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>>34993362
>>34994534
>>34994978
>>34997811

Technology implies belligerence.

An excerpt from the novel Blindsight (pt1):
" Once there were three tribes. The Optimists, whose patron saints were Drake and Sagan, believed in a universe crawling with gentle intelligence—spiritual brethren vaster and more enlightened than we, a great galactic siblinghood into whose ranks we would someday ascend. Surely, said the Optimists, space travel implies enlightenment, for it requires the control of great destructive energies. Any race which can't rise above its own brutal instincts will wipe itself out long before it learns to bridge the interstellar gulf.

Across from the Optimists sat the Pessimists, who genuflected before graven images of Saint Fermi and a host of lesser lightweights. The Pessimists envisioned a lonely universe full of dead rocks and prokaryotic slime. The odds are just too low, they insisted. Too many rogues, too much radiation, too much eccentricity in too many orbits. It is a surpassing miracle that even one Earth exists; to hope for many is to abandon reason and embrace religious mania. After all, the universe is fourteen billion years old: if the galaxy were alive with intelligence, wouldn't it be here by now?

Equidistant to the other two tribes sat the Historians. They didn't have too many thoughts on the probable prevalence of intelligent, spacefaring extraterrestrials— but if there are any, they said, they're not just going to be smart. They're going to be mean.

It might seem almost too obvious a conclusion. What is Human history, if not an ongoing succession of greater technologies grinding lesser ones beneath their boots? But the subject wasn't merely Human history, or the unfair advantage that tools gave to any given side; the oppressed snatch up advanced weaponry as readily as the oppressor, given half a chance. No, the real issue was how those tools got there in the first place. The real issue was what tools are for."

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>>34997866
(pt2)

" To the Historians, tools existed for only one reason: to force the universe into unnatural shapes. They treated nature as an enemy, they were by definition a rebellion against the way things were. Technology is a stunted thing in benign environments, it never thrived in any culture gripped by belief in natural harmony. Why invent fusion reactors if your climate is comfortable, if your food is abundant? Why build fortresses if you have no enemies? Why force change upon a world which poses no threat?

Human civilization had a lot of branches, not so long ago. Even into the twenty-first century, a few isolated tribes had barely developed stone tools. Some settled down with agriculture. Others weren't content until they had ended nature itself, still others until they'd built cities in space.

We all rested eventually, though. Each new technology trampled lesser ones, climbed to some complacent asymptote, and stopped.

But history never said that everyone had to stop where we did. It only suggested that those who had stopped no longer struggled for existence. There could be other, more hellish worlds where the best Human technology would crumble, where the environment was still the enemy, where the only survivors were those who fought back with sharper tools and stronger empires. The threats contained in those environments would not be simple ones. Harsh weather and natural disasters either kill you or they don't, and once conquered—or adapted to— they lose their relevance. No, the only environmental factors that continued to matter were those that fought back, that countered new strategies with newer ones, that forced their enemies to scale ever-greater heights just to stay alive. Ultimately, the only enemy that mattered was an intelligent one."

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>>34997874
(pt3)

"And if the best toys do end up in the hands of those who've never forgotten that life itself is an act of war against intelligent opponents, what does that say about a race whose machines travel between the stars?"

>>34993497
>enslaving a species as devious and cunning as the human gun-monkey.


yeah this won't backfire.

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IS THERE ANYWAY WE COULD MASK THE RADIO SIGNALS WE HAVE ALREADY SENT OUT.

THEY ARE ABOUT 100 LIGHT YEARS AWAY FROM US NOW.

COULD WE FTL INFRONT OF THEM AND USE SOME KIND OF JAMMING DEVICE INFRONT OF THE BUBBLE?

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>>34997466
>dat klan-klan
Aw yeah.

>>34997530
Humans greatest creation and weapon is civilization.
We are pack animals perfecting the pack

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>>34992457

>>34993026
>implying they would even have DNA
>implying they would even be carbon based
>implying they would even have physical form

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>>34998555
>>implying they would even have physical form
if it doesn't physical then it doesn't real

>>34998588
>he doesnt even know about memetic viruses and non-euclidian obscenities

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how could any solid element survive a direct hit(as in the warhead within feet) with a thermonuclear weapon?

the center of the fireball is literally hotter than the surface of the sun

>>34998602
>>he doesnt even know about memetic viruses and non-euclidian obscenities
memetic virus is soundwaves and light waves that alter chemistry in brains
physical

>>34998546
Doesn't actually work.

>>34992457
For an alien race to reach Earth, their technology would have to be well beyond ours.

If they're hostile, we're fucked.

>>34998605
The center of the sun is hotter than the surface of the sun and it seems to be doing just fine

>>34992457
There won't be an alien threat because any species which has advanced far enough to possess space travel technology would also have to have learned and adopted the non-aggression principle.

>>34998718
Because any intelligent civilization would have maintained tenets of free-market capitalism

been watchin' too much syfy channel lad.

>>34995338
>You could drop a marble out the window at .1c and destroy a city.
>implying any macro ship can realistically go at .1c
Enjoy you thousand years trips at 0.001c

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>>34998718
There would be no war. Only liberation. It is not an aggression.

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>>34999150
we literally have the technology to get a 100 ton ship going at 0.05c to 0.1c
sure it's prohibitively expensive and requires us to lift the ban on high atmosphere nuclear testing but it is within our grasp

>>34992457
If they simply want to destroy us? No. Anything capable of interstellar travel could just hammer the planet witb interstellar KKVs at a significant fraction of lightspeed against which we have no defense.

If they want to enslave us or colonize earth/"nation build" us into a good galactic civilization we might be able to insurgency them into leaving but only if they have an ethical system which precludes annihilating us.

Harry Turtledove's Worldwar series about aliens invading in 1942 with roughly Desert Storm-tier miltech was a decent take on the latter.

>>34999230
>120 km/s exhaust velocity
>0.1c Δv
Nope.
http://www.projectrho.com/public_html/rocket/realdesigns2.php#projectorion
Even if Orion is possible.

>>34995766
I hope I do too.

>>34996789
Harry turtledove.
>>34996384
They were fun for sure, but 'good taste' seems like a bit of a stretch...

>>34998183
They'd have been muddled by ambient background radiation by that point.

>>34992518
Pretty much the plot of X files

>>34992736
>aliens travel from literal light years away
>traveled faster than the speed of light (technically should be impossible)
>somehow can't put 2 Hydrogen atoms and 1 oxygen atom together

>>34993157
Aren't we good at running long distances? Some tribes chased animals to death, no need for complex traps, and smarts, just chase then stab.

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>>34992628

>>34993118
Extremely underrated post

>>34998615
Prove it

Not saying you're wrong, just want proofs

>>34993362
That's when their escort of warships steps in and exterminated us.

>>34992457
>Realistically, how could we defend ourselves from an extrasolar Alien threat?

Rape the aliens

>>34998555
>>implying they would even have DNA
RNA and by extension derivatives like DNA, are an emergent feature of this universe.
>>implying they would even be carbon based
Implying boron, silicate or your mom's dandruff is a viable basis for life.
>>implying they would even have physical form
We're going to be attacked by a bilaterally symmetrical animal with manipulator limbs and sensors at the top of it's body. It will build a weapon that we recognize as using laws of physics, right before it impacts over Osaka at .5c.

>>34993362
>ship into deep space in the near future it wouldn't have 20mm canon poking out of every window.
Only needs one and it will probably be an off the shelf Soviet 23mm with HE shells. That will fuck up your day.

>>34992457
Not a chance. Interstellar travel means significant-fraction-of-c kinetic bombardment. We can't offer any resistance against weapons that make antimatter bombs look like a wet firecracker.

>>34992479
I always thought it would be interesting if aliens just showed up one day with a nuclear pulse driven ship.
Their computers run on vacuum tubes, they dont have guided missles, just a big fucking ship that spent the last of its primitive nukes driving the ship on a several hundred year trip.

>>35000829
now that's just retarded anti matter annihilation compares to what happens when same mass traveling with speed of light not fraction of it hits you.

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>>34992602
Sexual integration.

>>35000336
Not him, but out of curiosity I did some maths. A 50MT nuke contains approximately 4.2x10^6 GJ of energy. Disregarding relativistic effects and air resistance, accelerating a 1000kg plate to .1c takes 4.5x10^10 GJ of energy. Before anyone asks, the vaporizing steam does not contribute to the energy of the system, it is there as a damper so the plate doesn't instantly vaporize from radiation.
Sorry, I really wanted this thing to work.
Accelerating a 10kg plate to .01c requires the system to run with 100% efficiency, which isn't anywhere near plausible either.

>>35001356
Me again, forgot to mention the 10kg plate in the second example has nowhere near the heat capacity to make it any distance through the atmosphere without vaporizing

>>35001388
>Me again, forgot to mention the 10kg plate in the second example has nowhere near the heat capacity to make it any distance through the atmosphere without vaporizing
At 0.1c objects will probably vaporize even in the vacuum of Solar system.

>>34992457
Immediately surrender, assimilate, and destroy them from within with the power of autism

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>>35001557
no brah

at like .85-9c objects release their entire mass in an equally efficient reaction relative to typical nuclear weapons. Some weird spacetime ripping shit happens above 90%, but prior to that you're still just going to be topping up at 'equivalent' yield to mass converted to energy of a conventional nuclear weapon. It'll still be fuckin big as most conventional atomics are converting a few grams of matter to energy over a weapon that weighs like a ton. About 5lb of mass going from .88c to zero is going to release energy equivalent to the tsar bomb

I vote for impregnating them

>>34992457
I think Enrico Fermi may have been on the right track, https://en.wikipedia.org/wiki/Fermi_paradox

>>34992457
The only way to defend ourselves from an extra-solar civilization that was trying to kill us would be to make a Dyson sphere/swarm and kill them first with a Nicoll-Dyson Beam.