Why We Should NOT Look For Aliens - The Dark Forest

You fell off + ratio

Same thing you kurzgesagt!

First

First

BS LIFE IS OUT THERE

oh no

Oh shit 😂. We gonna get got

but they will expose themselves by doing this, so not a smart move.

@@Skemmm by expose wym expose and how

@@Skemmm of course they would relay this message far away from themselves if they have that technology

XD
I would love it if the first contact is like in independence day 2
With that white orb thing
Seemed so nice to me

They're gonna come here and try to tell you about your satellites extended warranty

“You become you own space capital you only need to give us 200k kg of metal and travel to other planets to recruit them.”

"Humanity can be their own boss with this this two easy apps"

"Good morning! Have you heard of our lord and savior gheanud?"

maybe that's the reason we are like this haha

@ninajasmin731 hmmmm. perhaps the lack of exposure to other intelligent life may cause a lack of opposition in political opinions other lifeforms may have, causing us to feel more important than all other life in the universe.

Maybe we arent really intelligent compared to aliens and theyd be peaceful because they’re actually intelligent

@@anoobagain5008idk it feels like the more intelligent a life form is the more cruel they can be

@@Randomguy-nr6qr I feel like stupid life forms are cruel too we just dont see it because they are too stupid to do cruel things

That’s the first story to use the term “dark forest”.

​@@henrywang3403 The dark forest theory has been around for a very long time.

​@@smokbig3202prove it

Survival is the most important goal of every civilization
Every civilization will continue to expand and grow , but resource in the universe is limited.

Ye Wenjie doomed us man 😭

Deep Thoughts.

Violence is a huge part of nature. We can't escape it.

@@WiseOwl_1408 Violence is the eternal answer to "Or else what"
If you aren't willing to use it, you're no more than property of the person that will

I wouldn’t do that

@Nuup Truth is only the realities we give in to. Violence is only part of our nature so long as we keep giving up, making comments like these.
We do things the way we do because those methods are the paths of least resistance. We replace this resistance with technology and tools to ignore them, sometimes forever.
Taking violence as a truth may as well be giving up on a goal before you've even started. Absurdly defeatist and pessimistic.
It's also in human nature to *grow beyond our base natures.* Did you ever consider that? ;3c

Man with checkmark must like

How only 3 mins ago what

Yo

And there is another one writing this reply.

Imagine an alien making a coment such as yours on that video

she really took the internet anti human rage into RL....💀💀💀

Sameeee

BRO WTF THAT IS ACTUALLY CRAZY. I thought about an alien civilization watching this video after decoding it to see what we think.

And then they see their climate change videos

I will not imagine that!🤨

Sources reveal they have no real explanation

We would be aliens to them , so it would still be about alien's existance

Mankind: “If it exists then I can pet it”

The Xenomorph hugs him back, one day later they have a baby, but the hunter dies during labor XD

Tbh an amusing end would've been both the hunters getting skewered by a better hidden hunter observing the whole situation

"hehe, why is my stomach suddenly tickling?"

HERESY

Well you finished this series yet and if so, thoughts on the 3rd book?

@@King-mz8xe The best of the series. I finished the third book on a plane today. Liu Cixin has always been good about painting vivid imagery with words, and in the third book, he goes all in on describing the bizarre, the horrifying, the grotesque, and the hauntingly beautiful. He also tightens up the story, cutting out the unnecessary plot threads, and develops the ones he leaves behind all the way to their ultimate conclusion. It also has the most speculative ideas, the most imaginitive, the most optimistic, and the most terrifying.

@@Viltris I thought the 3rd was the worst because of some of the character decisions and humanity's reactions to certain things. Just didn't add up. I still love the series as a whole though. And I thought the first part of book 3 was really good. Wish I had more people to talk about the series with though, it's such an imaginative and thought provoking series. I think my favorite part is the world building of Trisolaris. Just fascinating and I hope the Netflix series does it justice. Dark Forest was my favorite.

I'm reading dark forest right now although I've only just started it. I can't wait to see what comes!

😂😂

The IASIP reference is top tier

❤️👏

Carl Sagan is wise, indeed.

your mum is pretty good lookin

This sounds like a good idea

Or in the words of 4Chan.. "Lurk Moar!"

trisolaris? also *amogus*

.

You mean trisolaris?

Ah yes, another trisolaris enjoyer

I believe the Aliens are so advanced that they might be among us and we'd never know

That’s kinda my thinking. Even if we were to detect radio transmissions from deep space, it would probably be better to wait until humans have colonized Mars and have a significant portion of the species total population in space.
If we keep progressing like we are, that’s definitely feasible within the next half millennia

Hello random verified user

I was going to say that

It reminds me of the Hitchhikers Guide to the Galaxy book.

YES!

same

Your English teacher would be proud.

Or you build a very big gun, take over the park with it, and live happily ever after.
Not everyone is equal in our dark forrest, and hiding from someone who's already more powerful than you is not going to work.

@@Cronos988 Yes, building a big gun really would be one of the ways, but that's a call for war. How do we know how 'big' of a gun is actually big enough? What preparations our opponents have made? Without knowing that, it's still a risk stepping out and making yourself known like that. If we can't know the nature or intent of those on the other side, we also cannot be sure of our chances of survival. True, not everyone is equal and that's for sure, but we haven't heard or found anything from these hunters to determine the ranking of strongest to weakest. We can't know who's more powerful. There could easily be civilizations farther off than us. Hence, the least we can do is not make our presence known so that we can stay safe. Thrive beneath the covers, threat-free until someone finds us. At some point we may have to though. This planet alone doesn't seem sufficient to satiate growing human population and desires.

@@Cronos988 Central Park is actually really safe. NYC is much safer than most cities or places in America, esp. the gun-loving ones. It's the homicidal ones that we need to worry about. The ones who think guns solve problems.

@@smurfyday exactoo

Hello, I'm alien from another galaxy. I just wantes to say *AMOGUS*

​@@Niilo2.2GETOUTOFMYHEADGETOUTOFMYHEADGETOUTOFMYHEAD

Same here.

Which 3 body problem movie are you referring to? That doesn't exist. A TV show is another story. I prefer the Chinese one at this point.

where do i find this??

brilliant

Yeah Huh, Mom! I'll just shoot it into a black hole!

@@jasonbaugher2464 yeaahhh lol

Time is non local synchronicity, past, present and future exist at once... everything exists now... nothing can be deleted. Energy cannot be created or destroyed...

People are already sending radio signals into space, and it's terrifying

I couldn't stop thinking about it lol.

Wait r u jokin or u r 4 real

@@primetime3422 Your comment gave me a headache.

@@odin2130 Genuinely though, are they joking about Kurzgesagt making a game?

@@TheEpiknik I think they said they plan to make one

Do you recall where this is from?

@@counttzt5070 r/WritingPrompts

They’re scared of humanity because humanity is a loud target ? I don’t understand

"This is why everyone is so terrified of humanity, who feel the need to loudly broadcast their location."
As if no one else does, just because we haven't seen such signals yet? Assuming there is indeed a danger in doing so, all civilizations may go through a period of 'not yet knowing better.'
Your assertion also implies that 'everyone' (especially if they're not also already talking to each other) will respond to awareness of our presence in the same way. Some may reach out if sufficiently gregarious, some may pre-empt, if sufficiently paranoid.
Or anything in between.
This isn't about what humans do, it's about what enough others may do, to be consistent with the Fermi Paradox.

@@olnbgy4444 Like a lion roaring. Think about, if you're in a dark forest and hear a lion roar, are you going towards it or away fast as hell in the opposite direction?

So, it's basically Mass Effect. Jesus, lets just hope we don't encounter aliens like the Turians or get uplifted prematurely and end up like the Krogan.

There's a group of aliens that are actually keeping us from "growing up". There are many different kinds out there and they have fought over control of this planet for millennia.

@@thewhompingwampa2671 Lets hope our first encounter isn’t with the Krogan

Isn't that kind of the back story of earth in star trek?

@@VoteOrDie99 Not really - only if you think the Federation is a "welcoming space council" but, in reality, the Federation are like aloof and waiting for the moment a civilisation reaches light speed travel just so they can have a chat of joining like when you move into a new house and the first knock on the door is the Jehovah's Witnesses.. Also, not so much if you are in the Klingon or Romulan neck of the woods: one's a warrior race and the other is a manipulative race out for resouces.

Except the other aliens would just let us die before they reveal themselves

that sent a shiver down my spine

It all stems from the novel series starting with "The 3 body problem"

What is it called?

the first message probably: What are guys gliberring about? we don't understand (in alien language)

vinland saga\american history proves that

This reminds me that in Halo games, the war that aliens start against humanity, which purpose was to exterminate it, started by a misinterpretation and a misunderstanding.

I feel like we just need to find a direct way of universal kindness. Languages wont help because its something we created, food might not work since wed be dealing an entire different race and dont know how it would affect them.

Let’s just pray either we invented universal translation or they have

@@maksanimates4456 In stargate the highly developed races used a universal language based on atoms. it seems pretty smart, since the elements should be the same, no matter where in the universe.

I thought the same. Especially some base/city building sim. I'm pre-ordering.

AGREEED

I was just about to comment this, every structure looks really interesting and I feel so inspired to play this nonexistant game

Yea

The Battle of Polytopia looks very similar to this 2:39. It's a little strategy game ispired by Civilization series but less deep, I played only a trial and liked It, you can play It on mobile too but it's actualy a good game.

yeah, we've heard that before. It's no more profound quoting it...

Cool quote

I think it would be more terrifying if we were alone in the universe, because it would pretty much confirm that there is some kind of meaning behind this, and that there is a god that created us and only us for whatever reason. It’s just scary for me. I’d prefer it if we weren’t “special”.

@@xavierc12343 Literally the complete opposite for me. The amount of comfort I'd feel if there was a purpose to us would be incredible. If it's only us in the universe, though, my first thought is that means we're screwed. We'd be an exception, and those tend not to last long.

@@xavierc12343 I think alone or not, there sure is a cause before the effect (a cause before the Big Bang, if you would). In Allan Kardec's book "The Spirits Book", there is a part in which he explores the need for a cause before anything ever existed, and this "cause" would be God, whatever name you wanna call. It's pretty intriguing and fascinanting tbh.

But because of the distances and delay in communication, and the possibility of rapid or explosive technological growth, we still would represent a possible threat to another civilization no matter how much more advanced they are

Just because you aren't a threat doesn't mean you aren't a juicy target or a plaything like a housecat in their view

True.
But at the same time, they are making themselves stronger. Because together, it will be more difficult for a third hunter to kill them both.
So this is a short period of calculated risk and temporary vulnerability, that will hopefully pay off with prolonged and possibly permanent increased strength and survivability.

@@Tjalve70 I hope that's true.
But, if the third hunter possibly takes us out with the other one, their location is given away, and a fourth hunter wipes the third one out as well.

@@Tjalve70 Another terrifying prospect: the two of them are already surrounded by a whole tribe of different hunters who have all gone through this same process long ago, and are contemplating whether to assimilate potential allies or annihilate potential enemies. No matter what we do, our lives hinge on their judgement.

The 2 hunters see each other, and they act like they don't, then for 2 years they just spy on each other not knowing what to do, then a third hunter just kills them

The analogy with hunting is ridiculous.

@@dilkush_21 k i wont

@@dilkush_21 ok
no one cares about your profile anyway

@@dilkush_21 ok.

I swear I just skipped the through the video just to see the hunter.
Because it was just hq.
Really makes me think, they should make a show about this on youtube and rake in the money for Kurzgesagt.

Samurai Jack is what your're looking for.

Gah read the books first. Doesn't this always go without saying? 95% of the time the book is better than the movie/show.

@@David-iv6je who said I didn’t? :)

I was playing escape from tarkov today. Another PMC killed the scav outside the room I was hiding in.
I called out and asked if it was safe, he called back and said he'd cleared it for me. I came out of the room and thanked him, he executed me point blank in the back of the head the second i turned my back

@@maccaronich
Don't forget what the word 'Alien' means;
How 'other' is the other?
@IssacArthur has a whole series on Fermi Paradox solutions and various possible alien mindsets.

@@maccaronich lol. You hid while he risked his life in the fight. I would have done what he did.

It's Christmas time and then ya get reminded of Christmas war stories where people pause and stop for a moment to exchange smokes, coffee and sing. lol People are crazy but it's even more dangerous to let them think for themselves and not kill each other according to most.

@@maccaronich I play with squads and the smaller groups or soloes are usually more scared to pull a trigger. It's not much that they can do to outplay since inertia is added. I had a streamer friend kidnapped a hatchling threatening him to follow him on twitch or else he dies lmao. Voip is fun.

Hey baby boy, can I drink all your UwU warm prorostate milk

It’s been 6 minutes you couldn’t have listened to this video.

Ye

GARRET!

I love you

The Fermi paradox is hogwash. It's based on literally nothing. It's a mathematical model where all the variables came out of Fermi's ass.

And then humanity will go into war with an alien species referred to as the Covenant because of the mishaps of the ancient forerunners

That's the option that I'm choosing to go with. Obviously we don't know for sure if that is the case, but we should consider the possibility.
Assume we are one of the earliest, if not the first, civilization to exist in the universe. What would that entail? To me, it sounds like a lot of responsibility. Like being the eldest child among your siblings.

Doubt in the universe because there's an insanely vast amount of it we're not able to look at, but I still get your point

Checkmark, I must like. Also good point

@@jeremyhahn3612 not even that. Look at how much we’ve accomplished in so little. Or who’s to even say we accomplished a lot in a little bit of time since it’s relative and we have nothing to base that point on.

Yeah, it's #3 Trending in Gaming

yeah those videos are always their best!

I mean, whenever he makes a video it blows up lol

Of course it does. Because of the Implication.

In their defense, whenever we invent new stuff or concepts, our first incline is how to use it as a weapon....

The Qanon Republicans would start a war with them there is no doubt about it.

And the Liberals would dumbfound them by saying we have over 60 genders

@@VegasRT500 Don't scoff, we're living through an event like that right now with China. They grew and grew and grew, and now we see their true intentions.

Bold of you to assume we would have the upper hand.

It would be a great unification for earth

by talos this can't be happening

We are quite literally not handling twitter very well. Social media and its algorythms are currently the most dangerous and impactfull tool on politics and information exchange. Twitter and co where what gave the us donald trump

@@MrMegaMetroid Sarcasm

We invented Discord and Reddit to spread peace

@@MrMegaMetroid Lol Twitter didn't give us Donald Trump, most of Twitter hates Trump. You're assuming Trump only had appeal because of Twitter - that he doesn't connect to real life people. If anything, Twitter swings the other way. Bad example. Also why do you people insist on politicizing everything? And why does the whole human species get reduced to a sideshow compared to the vagaries of American politics? You know there's a world outside America, right? Ironically, this tendency of Americans, even among those who hate Trump, to make everything about themselves is more Trumpian than anything else.

I'm surprised you didn't mention the Reapers, they're essentially the Dark Forest's apex predator, regularly scouring the entire forest and assimilating every hunter they find before they grow too powerful.

@@SikGamer70 There is also the brethern moons from Dead Space. Humanity expands outward and finds hundreds of 'dead' planets rich in resources but lacking life. Reason why is because the planets had life eaten off of it or converted into a new brethern moon. Humans have just been finding the remains.

What I find interesting about the Turians and Humans is that they became very close allies once the war settled. IIRC they're the closest allies among the council.

@@levi2725 Sometimes you just have to beat the shit out of each other to eventually become best friends.

@@Prometheus19853 Just like men. Punch each other, followed up by a hand shake

if it makes you feel better any detectable civilization is only going to have a tiny fraction of its population actually living on planets. space stations are just so much more practical. if aliens decided to destroy earth they wouldn't really achieve anything other than pissing off the entire human race

I think I take a sort of comfort at that idea of being wiped out within a second before really being even able to know it lmao, and otherwise, life goes on yay!

"If you want Peace, prepare for War"
Makes perfect sense in this context.

And that's why we should wipe out the Xenos and not try to set up some cringe galactic united nations.

No need to worry, if it was an issue we'd probably already be dead, because it's pretty simple to prepare a kill strike for every solar system in the galaxy. :)

So basically do what the Spanish did when conquering the Americas. Form alliance with certain tribes and used that alliance expand our Influence in the galaxy

​@@brandonselitetv1436That and accidental germ warfare.

⁠​⁠@@brandonselitetv1436not really
Btw the Spanish empire was defeated by the US Republic so shush 🤫
He says : ally yourself with pro democracy but in the alien world… to fight against invasive totalitarian alien empires.
Simple as that

Based on Cixin Liu novels The dark forest, three body problem

Yeah

Did you get the reference to the film Driver?

I thought the same. Absolutely stylish.

They pay a guy on fiverr

@@fighterwho Nah, they are a team of 40 people.

Dammmmmmmmmmmm i didn't even noticed!!! That was smooth af

Honest question. Can we really call something displayed in a 2D plane a 3D animation? I understand that for practical purposes, we consider it to be 3D as it “appears” that way. But in reality it is 2D as it appears on our phones, laptops, etc. It’s just our semantical way of framing it, right?

@@elko1860 The computer does 3D calculations for 3D, even though you can only see it from one direction at a time.

I like your way of thinking and it makes sense.. BUT.. my only argument here is that we as humans have only evolved to create technology to aid us in our day to day living here on earth. We’ve created impressive rockets and satellites in order for us to see what is out there in our universe, we are no where near at the level to create any significant difference in chancing our dimension/universal timeline as we go on as a species.
I like to look at our evolvement through the Kardashev scale. We aren’t even at type 1, we are sitting between 0.6-0.7 type civilization. In order to make any difference in our way of existence and timeline we would need an enormous amount of energy at a galactic level, that I can see how we can potentially open up new barriers through space and time, by that rate (if humanity is still around) we would be traversing at the speed of light. We haven’t truly even mastered the power of the atom or even left our solar system. We are eons away before we can make an impact at a universal scale.. and most scientist believe humanity will never get to that point due to our Neanderthalish brain still highly active. AI may possibly take over one day and real humans may become a form of Bio-Organic substance that wonder the earth..

@@johnappleseed9290
We can already create quite realistic alternative realities using our basic computer technology.
Once we have quantum computing, we will simply be able to run algorithms in power physics systems and they will just create universes, or maybe it will be AI that will do this for us.
We can tell from how the universe grew, that it came from a simple state, and that is how we would create a universe, from a single algorythmic origin, and let it expand within a program.
The way we make computer games now, it would be impossible to create a new universe, it would be far to much work. The universe we live in shows us jow it is to be done, and we will replicate that. Inevitably at some point.

Or let's chop it all down, we are rlly good at deforestation (joke)

inb4 we do that and some other race spots us both and eliminates us both

famous last words

It’s too late, we blew the horn. By many many orders of magnitude larger than any purposeful broadcast in human history we have already signaled aliens. It’s the EMP from nuclear detonations, converting a bit of mass to an insane amount of energy in a infinitesimal amount of time , a significant portion of which is electromagnetic radiation. If aliens are listening they didn’t hear our news broadcasts, tv shows, or purposeful signals because the noise of nuclear bombs is far beyond a quadrillion times more powerful.

They say this in the video just to please the audience. Use logic and think what the worst consequences would be and whether our civilization can afford such consequences.

No shit

I'm taking the first spot here. Don't know what to say

I’m taking the second spot here. Don’t know what to say

@@Skemmm I'm taking the third spot here. The dude above doesn't count.
Those graphics are crazy.

@@mortalkomment8028I'm taking the fourth spot here once again. Are you sure that dude doesn't count?

Yes. You know how they always have pictures of birds? Yeah, that's actually what they look like in real life.

Bruh

0

0

One thing is certain, Kurzgeagt is definitely a team of people. Certainly not just 1 person

They know/they are. 😏 😉

Anti-aging can make it so we DO witness it.

@@tourguideofthemultiversesp739 Yes.. Anti aging.. You know.. That utterly common thing that we as humans have totally figured out how to do by now..

@@123misou VERY close to figuring out, just not there yet.

one day.

@@tourguideofthemultiversesp739 Dude, we still can't even completely prevent covid and people are dying from it, let's not even mention cancer.. And here you are talking about being close to curing death itself

definitively.
schools should learn a lot from content like this and adapt.

@@hackedtechnothief I wish so much

Schools often use kurzgesagt in classes. (Currently in high school) (AUSTRALIA)

@@classypharaoh1584 the only problem I have with schools overhere in (Slovakia) is that 40-60% we learn is useless bullcrap that I won't never need in my entire life. It is a bit better in high school but I still must learn some of the useless stuff that I don't care about

@@Shimo_28 I'm in the caribbeans and It's the same if not worst, theres a lot of decay education that is really slow on updating to modern times (on purpose as always)

It's not a new idea tho. Pretty sure they got it from the Central Park allegory from that one 4chan post from several years ago

@@Budymierdas oh I didn’t know that.
Either way it’s really interesting and I’m probably gonna read into it,
Thanks for the info :)

it;s actually from the book theu got the idead from. the book is called the dark forest

Yeah it's pretty amazing.

Hehe someone's porgie has a 🥖

@@rosieboomer2910 What?

@@pixelcrunch300 they mean lorsque l'intrus commet des actes malveillants

But there were no burning birds…

What if they are more advanced and more peaceful than us? They could teach us things.

@@hagron5702 well that'd be a good situation

@@teafool753 I’d say that’s the best case scenario, we’d see massive technological leaps with a benevolent teachers to guide us

They'll look at us the way we look at ants. If they find us, that means the are far more advanced and annihilate us

@@hagron5702 They probably wouldn't want to associate with us, just tap into our network and go through our history, they'll probably set up a blockade and ground us from leaving Earth atmosphere.

I don't really like Infographics anymore, its quantity now, not quality.

Agreed!

there is now a demand for kurzgesagt compilation videos

Yej

NFT Idea 😄👍🏻

this

but like none of the rich care

@@Skemmm I care :(

When a bunch of birds have more sense than most of the world's politicians
Warning: Comments below may be controversial

except were not. the majority of us are little more than livestock, entertained so long as we sustain our betters. human rule is not benevolent.

ㅋㅋㅋㅋㅋ

I didn't understood what you said but I agree with you

@@historicallegends3702 Several Korean KRplusrs made a video series named "Dark Forest" using Minecraft, and among those who participated in it, a KRplusr named '공룡' recommended this video to introduce the Dark Forest theory to his viewers.

*That's because it's vector art, no pixels AT ALL!*

Yes very informative

This stuff is based on mostly what ifs and assumptions. ..
They literally made a whole story up...
The creators of these videos continuously say "we don't know sh*t" ....indirectly...

@@ChodaExploda Nobody knows exactly about these topics bro. This is the reason curiosity and imagination have such a big role to play in such topics.

I thought it was 2d

ㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋ

Maybe they do

well really any space capable civilisation would be a threat to pretty much every other space capable civilisation because of the big rock technique (tm)

And if they were a threat we'd already be dead. They are already here in any case, as Earth is one big Zoo, and we, the exhibits.

yes, so in contrary, if their (our) weapons are not advance enough, do not detect others
as the detection may trigger their technological explosion

No they can't the universe is too big if they knew they needs to be really close to use probably 1 light years away...

truly remarkable

dude agreed so hard

Ikr

No one asked

Dont forget the music 🎶 The scoring here is incredible

You're misunderstanding Kurzgesagt , bro.

@@dynamicflashy you’re not understanding the joke

@@willyc2051 oh the irony.. You just missed the joke on the comment you responded to. Missingjokeception!

We get the humans nice a tipsy topside, and take them to get nice and comfortable below deck! They look out and see light-years of empty space and think, "What am I going to do, say no?"

@@jflanagan9696 “yes… but it sounds like you want to hurt these humans..?”

That’s not really it. I mean, there are multiple ways to strike, while remaining concealed. Simplest one would be to launch a strike from far away from your home system. The idea isn’t that they watch us. The idea is that they watch everything, striking at the one who reveals themselves. We’re alive because we didn’t.

Dark forest theory?

We aren't even a type one civilization yet and it would probably be a couple hundred thousands year before we even come close to being a potential hazard to them, they probably have other more important things to worry about than to kill a random level 1 planet.

@@Cooldude-ko7ps the theory of all other life hiding in the dark forest of space, hoping nothing else finds them, striking hard and fast if something does.

When you've just arrived in Greed Island

Their fear and distrust was all......
......relative.

Their deaths were relative too.

Their life was relative

@@Creativestname
Even their relatives were relative.

Lol

The person or the Dishes?

@@xinguan2681 look at the sweater

You should read the trilogy from Cixin Liu! First book is called the three body problem, second is “the dark forest” - so you can imagine it’s dead on the subject :)

@@deryoad reading the trilogy filled me with existential dread. It was so exhilarating yet depressing at the same time.

there is another possibility...life on other planets and their "technologies" may be just incomprehensible for us. Take for example some kind of zerg from Starcraft, who literally grow their ships from biomass and communicate using psionics. We cannot communicate with such aliens. We will not be able to detect such aliens (they do not use radio waves). Our technologies are simply incompatible. And this is a very ... mundane example, because they can be much more bizarre. And they may not necessarily be a carbon-based life form like us. They could be silicon life form for example. Their physiology will be fundamentally different from ours.

Imagine earth finally getting a message from space, and after decoding it, the message says "new phone who dis"

Any civilization that makes it to an interstellar level will need to have a lot higher regard for sentient life forms than we do. Otherwise, like us, they'll end up offing themselves long before they get to the point where they can effectively travel the stars.

You don't fire from home. You have kill stations spreaded out through interstellar space to shoot down the dangerous civs. Multiplanetary and nomadic civs would know to stay silent in this dangerous galaxy already.
And civilizations don't advance to a level of perfect information simply because it considers the galaxy is damn huge and you can't go faster than the speed of light. It's more of a realistic-pessimistic scenario so it considers possible weapons like throwing mass at relativistic speeds at planets or even a star to wipe out the whole star system.
You should sleep well at night just because it's damn unlikely anyone actually willing to exterminate us would identify a living and developing species in the solar system from our broken down radio waves and almost non existent space structures.

Good observation, one would think there is always a bigger civilisation that keeps the others in check, willingly or not keeping up the status quo. However, who keeps that supreme civilisation in check ?

The problem is that if FTL is indeed a hard limit of the universe, then near perfect information is impossible. A super civilization that detects intelligent life 500 light years away has information that is 500 years outdated. Think about how much technological advancement can occur in that time. Imagine there is a super civilization 100 light years away from Earth. The first radio broadcast that humanity made was in 1920, so they would only about now be capable of detecting it. If they were to immediately send RKVs to every planet in our solar system, they wouldn't get here until well into the 2120's at best, which may be right around the time we might be capable of colonizing those other bodies in our system.
And that's for something that's relatively "close". For further civilizations seeing a primitive radio broadcast could indicate that there already exists an advanced civilization there. If you delay until you see clear evidence of malicious behavior, it's already too late to respond to it because *they might have already detected you, and there may already be RKVs headed your way*

Why is some sort of shielding system for planets not possible? We are like caveman thinking "future man can't stop me if I throw spear at him" while he could be wearing full plate armour.

@@dmfaccount1272 It's way harder to make a magic shield compared to nukes.
It's the same reason battleships got phased out in favor of missiles and jets.