Physicist Reacts to Why Alien Life Would be our Doom - The Great Filter

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Original video by Kurzgesagt: • Why Alien Life Would b...
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[@unthinkablefate9503]

Your videos are great. I found your channel a few days ago and have watched about 1/3 of them. If you're interested in constructive criticism, your microphone volume vs the volume of the video you're reacting to are much too different. Getting the volume levels closer to one another would make for a much better viewing experience so viewers don't need to crank up the volume to hear you then cut the volume in half to not be blasted by whatever it is you're reacting to.

[@DylanJDance]

1/3! You must be absolutely sick of me by now. And I'll fix the audio problems! Thanks for saying that, I didn't realise

[@Anhdontdelete]

@@DylanJDance I found your channel yesterday, but Agree the volume differences need a little fix

[@IroAppe]

@@DylanJDance Ah, to add to that: I've noticed that after an ad, the volume often is different. For example at 17:23 it gets louder.

[@AdhvaithSane]

@@DylanJDance That’s why his fate is unthinkable

[@IceBro]

same

[@Officially_Unofficial1]

“I love Elon” “We need people who are scientifically literate” *WHY DO YOU LOVE ELON THEN?*

[@yisus4681]

because he is scientifically literate, he just isn't *most* scientifically literale person ever.

[@endless2239]

we need people who are *applied* sciences literate, because whitepapers and hype seems to take up anything.

[@yisus4681]

@@mex3009 why isn't he? because you say so? He literally has a bachelor's degree in physics.

[@AndrewManook]

@@yisus4681 He doesn't.

[@yisus4681]

@@AndrewManook he literally does

[@serenitynow940]

Love hearing your “what ifs” and imaginings about the universe. Everyone has their own theories but it’s much more interesting hearing them from someone who understands the universe more than most. I too believe that assuming we are the only life in the universe is absurd considering how little of it we’ve searched, people can be so narrow-minded. And Yes to politicians knowing more about science! They should be required to demonstrate that they understand how the science of our planet works before they go making impactful decisions about it. Thank you for another entertaining informative video!

[@AndrewManook]

It's not about it being absurd but more about it being a mathematical improbability, the chances for life occurring are very high even by conservative estimates.

[@Dell-ol6hb]

well, the probability argument can be explained away by the fact that we exist at all, it's not like we would know if life was rare or not if we didn't exist in the first place as living beings. But I do agree that life almost certainly exists elsewhere in the universe

[@69Kazeshini]

@@Dell-ol6hb We also don't know how resilient life can be, millions of years ago during the cambrian period Earths magnetosphere was weakened which could potentially have ended all life on the planet but the tectonic activities of the earth helped recover its magnetosphere - check video by a youtuber named Anton perev. From what i have gathered life needs safe a medium to conduct "experiments" , the medium can be oceans(where all life on earth originated) or thick gaseous or cloudy atmospheres (eg Venus). Whatever medium it uses it has to be safe and possess a bunch of building blocks for life. Also it needs protection from radiation, too much radiation could prevent life from taking hold, red dwarfs are the most common stars in our galaxy but they blast a ton of X-rays. Plus the planets need a magnetosphere, there are planets out there just like mars with little to no magnetosphere which means the surface is a radiation blasted hellhole. Lastly, we could very well be surrounded by aliens but more like animals rather than intelligent sapient life. There must be a bunch of hurdles you have to jump through just to get to this point in our civilization.

[@mrloop1530]

Serenity now - insanity later

[@no_SKape]

hey mate, just wanna let you know that i just discovered you a few days ago and absolutely love the content. Im like a hobby physics doc, knowing about alot of things but without the maths and actual physics behind it. i know barely enough to understand most of your explanations, you just begin on the right knowledge level for me ^^ keep it up man, love from germany

[@ericivins5383]

elons really trying to fix his underpopulation problem single handedly with all his kids

[@docopoper]

As an AI researcher, I think AGI is 100% definitely possible but will take another breakthrough on the level of inventing neural networks. I've always thought at great analogy for the state of our AI is to think of it in terms of us programming the functions of a creature: Classical programming where we hand write algorithms that perform very quickly at prescribed useful tasks are like automatic reactions a creature would have. Like our reflex to pull away from hot things that can control our muscles without even giving the signal time to get to our brains. Or like bacteria being programmed by evolution to move towards food without any actual thought going on. Neural networks are like intuition. They can solve problems by way of repeated exposure to patterns, and can make leaps of logic and encode patterns that we don't know how to describe well using classical algorithms. Being intuition however, we can't get perfectly coherent explanations of why a decision was made. In the same way that a doctor can get a hunch about an illness but not explain exactly why exactly they think it's that illness. In the same sense that it's very hard to think of exactly how to code an algorithm that would distinguish cats and dogs, there may simply be a class of problems that can only be solved by this kind of intuition based structure, but which literally can't be reduced down to a concise explanation. The big breakthrough we need for AGI to be a thing is to develop something similar to the cerebrum. To me this feels like it may be a long way off. Though it could happen in our life times. Such a breakthrough I think would be different to simply explaining neural networks, and would be different to things like our neural networks which can write computer code. I suspect it needs a fundamentally different paradigm. Though I might be wrong, it's an interesting question about how the brain performs such thinking when compared with intuition. But basically to achieve this we'd need a way of letting the network actually reason and have conscious thoughts drift around in it in the same way our brains can. And I for one am not quite sure how we can cause that to happen. But like, once we crack this nut we've got AGI. Because at that point we're doing everything the human brain can. As for the other parts of the brain. We can already do image recognition and decoding with convolution neural networks. We can do memory with LSTMs. We can do language and communication with language models or neural network based compression (since language is kinda a problem of compressing ideas).

[@MeanBeanComedy]

Thanks! 😁👍🏻✌🏻

[@buzzshocker1069]

Some AI bot writing this down to expand it's brain

[@d4s0n282]

its the idea of making a ground up ai compared to a top down ai(which is what 100% of ai currently on earth is)

[@mastershooter64]

I'm pretty certain (not 100%) that AGI will be unlocked by neuromorphic computing and mimicking brain like structures using hardware (memristors and the like)

[@degamebende7070]

I agree that science should go before politics

[@rueisblue]

Dylan, i assure you that you talking about these wild high concept ideas isnt boring. That dark matter concept was incredibly unique and fascinating

[@tangytanger1ne]

I love watching these videos, but it’s a big hard to watch sometimes because the video audio is much louder than your microphone. You might try balancing it? Idk how to do it personally, but I don’t think it’s super difficult

[@oglapo8482]

“I love Elon, I’m the biggest Elon fan” you lost me there. lol

[@shawazimorgan3009]

Same 😭

[@endless2239]

and that's why Dylan's a physicist and not an engineer XD

[@johnconnor2572]

Besides being a bit of an insensitive troll at times whats your beef with Elon? I can excuse some mean tweets if you're actively advancing all of humanity forward to a better future.

[@disres1337]

@@johnconnor2572 being a huge hypocritical asshole that treats people like shit for one

[@MeanBeanComedy]

@@johnconnor2572 Bingo. He's worth it. 👍🏻💪🏻

[@kurtweinberger4202]

There was an interesting experiment with mice in the 1960s. Calhoun did an experiment where 8 pairs of mice would be enclosed in an area that could house 3000 mice with unlimited water and food, with no predators. Every time he ran that experiment, the population would only get to about 2200 max, and then declined till there were none left. The experiment would always last to at most 675 days or so. There are a lot of parallels to that experiment to the current human society.

[@Tybren]

While that is interesting, I'd like to believe we as humans can think a little more critically than mice. We could recognize a serious decline in population, and actually do something about it.

[@Tybren]

@@vikingguy Agreed. But, that is a minority of folks who have such outlandish beliefs.

[@dobermanownerforlife3902]

@@Tybren critical is the key word. As technology advances things become easier. Fewer people are needed for labor. A shrinking population seems reasonable. Especially if done naturally and not cleansing.

[@salmonbamminfish2925]

Maybe there hasn’t been a super advanced civilization yet but ones at the same stage we are just haven’t found each other yet

[@ahmadshakaib1311]

I'm the exact same way. Although intensely intrigued by my place in our possibly infinite universe, the thought that I am conscious and a human with all the hormones and biological evolution that led to my existence is shocking to say the least.

[@micahwithabeard]

I've been binging all your videos today and a new one comes out! yay!

[@KsdJckl]

After this video, i am highly recomend another kurz video called: "Why we should not look for alien civilization?" It's really good IMHO

[@curtisquick1582]

The video you reviewed here is spot on. There is no reason to believe that the natural laws are different in different locations in the universe. Biology is shaped by evolution. We have had billions of years of evolution on this planet and millions of species to study. We understand a great deal about how the biology of life works. In contrast, the formation of life from non-life, or abiogenesis, is not at all well understood. In fact, the closer we look at the problem of abiogenesis the harder it is to solve. It is fair to say we have less of a good idea about it now than 50 years ago. There are not even any good theories as to how abiogenesis could naturally occur (and I'm looking at you RNA-world hypothesis). But back to biology. Biology shows us that all species compete with one another. This is simply a natural law of living organisms driven by natural selection. There is no reason to believe that such would not be the case everywhere else in the universe. This is not a sample size of one, but of millions of species. And just like a bacterium in a petri dish, life forms will grow and replicate to fill their environment. When that environment is filled, the species either finds new environments to grow into, or it dies. It is the same with civilizations. On this planet we have had hundreds of civilizations and in many ways they grew in the same way as bacteria in a petri dish. They grow until they can grow no more. And when one civilization meets another, the normal result is that the more advanced civilization destroys the less advanced one. This has happened hundreds of times. It is not a sample size of one. Evolution is the reason why we should be concerned about a Great Filter. The very forces which enabled us to become who we are today are at work everywhere in the universe. And given the age of the universe, there has been a lot of time for hundreds of galactic empires to have developed, one after the next, with each one filing the galaxy with its lifeforms, only to die out and be replaced by the next one. We should be able to find artifacts of these civilizations everywhere we look. But so far, nothing. Hmmm.

[@fear4343]

Hello Dylan I've been enjoying your content since I discovered your channel. I would say your content is unique in sense that most physicist that YT algorithm shows me are physicists discussing a certain topic in detail, and yours are spontaneous reactions, commentary and imaginations out of stocked knowledge. I find it entertaining. You discussed a little bit about how life was formed, that its transition took a lot of time. I encountered a lot of videos regarding this but I still can't grasp how molecules became complex to the point that it, striving for energy, turns itself to be a living entity. The transition of something mindless into something that senses and moves still puzzles me. Can you please discuss about it in more detail?

[@GuidoHaverkort]

Kurzgezagt actually did a video about that haha, something about conscience. Pretty interesting watch. Maybe he'll react to that one too

[@ketas]

how did life become complex, eh? well, look it like giving big bag of legos to a child. (s)he finds them fitting together. first he builds a bigger stick. then he builds a wall. then bigger block. a bridge. a house. a house within a house. it could get extremely complex and at start there was nothing. and why, because it just could. isn't this fun

[@fear4343]

I am glad kurzgezagt now have a video about my question. kzbin.info/www/bejne/ioqzd5ikf7aWn9k Well almost, in which part where life started within the process is still unknown.

[@alextaunton3099]

A galactic empire is COMPLETELY infeasible without some sort of warp drive or wormhole usage, because the chances of a SPECIES lasting long enough to even have a LIGHTSPEED conversation from one end of the galaxy to the other is basically zero. Idk why this isn't mentioned more often. Interstellar empires would already present their host of challenges, but a galactic empire? Forget about it. Ludicrous.

[@AndrewManook]

Agreed, you would require a loophole around the light speed limit.

[@alextaunton3099]

@@AndrewManook i love the map that shows the extent that manmade radio transmissions have travelled from our solar system. That is, not very far at all. Basically a dot in the context of our galaxy, 1/1000 of its diameter. And thats as fast as you can go! People really forget sometimes that, on galactic scales and bigger, light/gravity travel super slow. Like reeeaaaalll slow.

[@buzzshocker1069]

13:02 I would say ignorance to believing anything without Proof. "Chicken crossed the road? Show me i won't believe it before i see it" kinda thing

[@larsyxa]

Three Body Problem (Remembrance of Earth's Past) is one Dark Forest solution to the Fermi Paradox.

[@gene1491]

Alien memer: *makes shitpost about Earth* Post: "humans elect sex worker as leader, is then confused when he doesn't do a good job" *picture is of Danny D in a suit*

[@BigBoss-sm9xj]

Love hearing your crazy thoughts about where dark matter and energy ‘might’ come from and aliens. It’s the stuff I come here for, for inspiration

[@BigBoss-sm9xj]

Love your imagination

[@ex5080]

Great video, loved the thought expirementing throughout it

[@UnofficialName]

Under population and over population are both problems that should not be ignored. I'm glad Elon is bringing attention to the former.

[@AndrewManook]

Over population is really a resource consumption issue, we can lower our consumption of basic resources like electricity and water with better technology.

[@benjystrauss2524]

Love your videos, they address all my issues with Kurzgesagt. It's important to realize though that Kurzgesagt just spreads ideas, NOT subjects them to scientific scrutiny.

[@the_devils_jester]

Maybe one Filter is that colonising the galaxy is just not a practical thing and all older civilisations are happily sitting on their own planets.

[@SplittingOfPrides]

I agree advanced alien technology would be magic for us. It's like giving a smartphone to a caveman.

[@dembones5005]

I fall into the school of thought that if life is common then intelligent life is also common. That's our sample size problem kicking in again, though - we ended up with one small family of sentient species on Earth, which were in turn reduced to one. Incredibly fluky, but so far it's happened on every planet that we know of where multi-cellular life took hold. I also fall into the school of thought that faster than light travel is an insurmountable challenge. The energy required for any of our theoretical shortcuts or possibilities will always be beyond us. We might reach other close stars with generational ships (should we determine there's even a point in going, instead of using this generational tech to create habitats out of harms way in our own solar system), but dreams of lightspeed will never be come to completion. If that's the case - if the ultimate filter is "Space is Big. Really, really big." - then it wouldn't matter if there are tens of thousands of civilizations as advanced or even more advanced than us out there. They're all trapped on their own mudball trying to find ways to stretch its resources for as long as possible, too.

[@Tybren]

Hopefully space craft that is able to move space-time around it will be possible in the future. I'm pretty bummed to be born into a time of the infancy of scientific discovery.

[@jacobkarlin6147]

For the over population problem, once you become rich, people naturally have less kids. Also, resources are functionally limitless. The only limited resources is the mind. Here is something I like to think about when people worry about resources. In the 19th century, there was a shortage of light producing materials and whales were going extinct. The whales were saved by light bulbs. No one predicted it but a few great minds made it happen

[@someguy3300]

Hello! What’s your opinion on Feynman diagrams? I’m getting into physics and got interested by it, a lot of Richard Feynmans research fascinates me, one of my close uncles has the patent for the assembly mechanicism for the ISS and also worked on finding the issue with challenger and more I believe.

[@deltalima6703]

They are great. Give you a new perspective on things.

[@broEye1]

I'm sorry, but there really is no reason to think there are even other single-cell organisms out there. You can say "with how big, maybe infinite, our universe is there has to be more" but honestly there's no way to know if that's the case. For starters, as you stated, we're dealing with a sample size of one. There's legitimately no way to know whether life in any form is something that will naturally occur anytime the ingredients are present or something so incredibly unlikely, a series of one near-impossible fluke after another, that even the existence of bacteria or protists is a scientific absurdity. One issue is that there seem to be a number of things that don't seem to have happened more than once. Even the development of life itself, if it were something with such a high likelihood of occurring that we'd see it anywhere there's water, then I'd think there should be at least some record of it happening more than once on earth. We've had plenty of other things develop multiple times, like eyes and wings for instance, that clearly developed independently despite similarities. It seems odd that everything would have a single common ancestor if life is something simple enough that we could expect it out there. This's especially true given how hostile the universe really is. All it would take is a little instability in the parent star, one too many disasters in a row (and "in a row" I'm talking within one or two million years) to wipe the slate completely clean. And these don't seem to be such rarities that it would be even remotely likely for almost any place to avoid such levels of destruction for millions of years. Honestly, just finding a place that's relatively likely to avoid even a portion of the threats would narrow the list of stars that might have planets with sustained life down by a huge margin. Adding in the presence of planets with necessary traits to protect against the most common threats diminishes it further still. Then requiring everything to coincide well enough for it to develop and then for things to never get bad enough to completely wipe everything out over millions and millions of years, and frankly it'd be easy to argue that we might not find anything out there at all. Additionally, those claims that we might not be able to understand the signals or they might be deliberately set up in a way so that we won't understand is nothing more than wishful thinking. There are plenty of characteristics that one can expect to occur in any kind of communications, such as "grammar", regularities and patterns indicative of sustained meaning. Claiming that we'd simply be unable to even recognize that a signal is communication because we're not advanced enough is deliberate conjecture, and claiming that "they" might be deliberately communicating in ways that we won't be able to decipher to protect our fragile minds from knowledge we're not yet ready for is far beyond absurd. I don't think most religions have that level of faith or would go to those levels to explain something away. Additionally, you're going way too far with your "they might not be like us, that could just be a product of how we think/feel/work". For life to survive it must consume. This is a simple fact. Life that keeps growing without consumption defies physics. A lack of sufficient resources is basically inevitable, meaning competition is. The chances of development without adversary are slim at best. True, intelligence might not develop exactly the same as us, but chances are that there will be similarities, including the concept of life and death, and the presence of purposes that would drive one to take life. On a planetary scale, this means war and possibly genocide or even extinction. Not to mention that it would also be possible to simply commit other kinds of acts that either eradicate the species or disturb the environment sufficiently to make survival impossible. It's plain idiocy to expect others to manage to not make any mistakes.

[@TonyB369]

I often think that we are looking at life all wrong. What if there was some alternate type of sentience that is "alive" in some planet that doesn't require water. The only reason we think water is an absolute necessity is because that's the only life we know. Or maybe there is something out there like our viruses that are a border between living and nonliving. I don't think we'll ever find life using our current methods of search. There is so much possibility and we'll likely never know until we happen to find it somewhere else by complete chance.

[@hispanerd880]

4:12 Elon simping stops at 6:59

[@TnT_F0X]

Im just observing nature... Rats avoiding traps... Birds not coming out when predators are around... Intelligence is great, just we have so much we end up wasting it all.

[@Divinemakyr]

I've always thought that it's likely the uprising of intelligent life, as in life intelligent enough to completely inhabit its planet, decipher some of the secrets of the universe, and get to the technological point of creating vehicles capable of space travel, could be so exceptionally rare that it would appear just once per dozen galaxies or perhaps even less. Maybe the emergence of beings such as us is a cosmic gamble of one in a septillion.

[@DordYT]

It is impossible for things to be impossible. So an impossible thing can be possible. That sounds like a paradox.

[@ennou1236]

Imagine if there are many advanced civilizations and that they all reached their level by being peaceful and cooperating with each other, they would probably stay away from us just by seeing how violent we are, we may even be in a quarantine until we become peaceful enough

[@creeperminer5338]

Hi! How y'all doing today? :)

[@thanksforchoosingthespicyside7]

Very interesting add ons to these ideas, liking and subbing for sure

[@Raktus]

Another book recomendation here... The Galactic Center Saga by Gregory Benford. The concept of AI being the Great Filter that destroys most advanced civilizations is covered there in. As well as the concepts of surviving around a super massive black hole, and magnetic intelligences.

[@simonprovencher6007]

random question, do u think intelligent life can exist if they evolve without empathy. Like if everyone was a sociopath could society exist as we know it?

[@yisus4681]

there could be a society from that, but we don't really know how advanced they could get or how they would be.

[@endless2239]

but that would literally be the opposite to a society as we know it.

[@nfrance999]

This video is a few months old but I still felt like commentating. I find the Great Filter topic interesting, because in truth, a lot of the "near" filters (mass extinction event through nuclear assault on one another, etc) are very human mind set oriented, and a mindset that is only really so relevant with the modern lens. Speculation of course, but imagine we fast forward 100 years in the future. At that point, I would be shocked (given recent fusion breakthroughs) if we didn't have unlimited clean energy, at least to the planetary scale. Like, if you don't have to worry about leaving a machine on because of energy resource cost, you could theoretically service so many of our current issues. Entire skyscrapers worth of vertical farms could be built, with perfect climate control features and specially tailored heat lamps/UV lamps that are perfect for each individual crop. The issue of feeding a planets population could be effectively zero'ed out. You could run massive carbon capture facilities without the worry of pollution through the fossil fuels powering it. Desalination plants could be built and run and reduce energy costs to effectively zero. These are all advancements that I think are not a reach to imagine could be possible 100 odd years from now. So, if we consider mass self eradation as a potential Great Filter, considering the acceleration of technological development, it's a very short lasting filter in the grand scheme, because as resources and such become effectively a non issue, the issues that are usually used to divide us hold much less ground (It's hard to blame another ethnic group or such for your problems, when you yourself don't have problems to speak of in the first place) now of course this is all speculation, and I could be wildly off, but that's how I see it. Also, a theory I find interesting, is consider humans /are/ alone. Fast forward a few hundred, or even thousands of years. What's to say, that humans, tired of being alone, don't decide to create live themselves? I mean, we already understand many of the building blocks of life, a more advanced version of us could surely manage as much, right? Well, if that's the case, whose to say that isn't what happened with us? And that our creators, or benefactors, are simply avoiding contact until we ourselves are ready? Like playing hide and seek with a child, when you're vastly intelligent to the one your hiding from, it can be easy to hide in plain sight. Hell, Earth based technologies are constantly worked on that are capable of hiding themselves (stealth based technology, I.E stealth bombers and radars) It's all just a very interesting field of speculation, that I find so compelling.

[@shiniblackrose]

Personally, I think Elon is a businessman first and now he fell for this anti-social culture war instead of focusing on the environment. Worried about pronouns and not worried about how our planet is being destoryed by coal and oil.

[@johnconnor2572]

You said yourself hes a business man first. I'm sure he devotes way more time and energy into making his succesful business ventures more efficient (reducing waste and therefore helping the environment) and profitable. As opposed to fighting the culture war.

[@AnonymousApexio]

I have seen this video before and he actually makes a fair point.

[@DarkCypher3301]

It would be really cool if you could react to "The Great Silence" by Lemmino. It's a video on space and alien civilization.

[@corriveau21]

it's also possible that we are the first specie to reach space. If this possibility is the current reality well it might takes long before we encounter someone else.

[@buzzshocker1069]

In my opinion the great filter is just the vast distance between planets and Stars, Maybe all the Civilization near us (

[@YanniCooper]

The universe being infinite doesn't mean there's "another you" out there. Consider the sequence 1,2,3... It's infinite but there's no duplication.

[@rolypoly4920]

I heard someone refer to the extreme length of time between single-celled life and multicellular life evolving being a "suspiciously long gap." I feel like that is definitely one of the great filters. How many worlds are stable enough for microbes to survive long enough? Look at what happened to Venus and Mars.

[@odiihinia]

Dylan, I suggest trying to normalize volume levels on your videos. Sometimes you're really quiet, and then I get earraped by the +1000dB video.

[@tylerslagel5485]

We are not living in an impossible universe. No one can claim it’s impossible because we don’t understand how it formed, but the fact it exists at all proves it’s possible. Generation ships might be practically impossible. FTL travel is impossible until further notice.

[@minuette1752]

There is life out there for sure. Whether we will see it is the question.

[@devonmarcus101]

In order to put scientifically literate people in charge, scientifically literate people have to run. They will also have to get past the gatekeepers somehow. The current political machine will not go down easy.

[@maxlarivee3663]

A great Kurzgesagt followup video to this one is What Do Alien Civilizations Look Like? kzbin.info/www/bejne/qJmpfGiVg91srrs It explains why, while we only have a civilization sample of one (as you pointed out), there is logical thinking behind the idea of specific universal concepts behind civilizations. Not intelligent life, mind you, but actual civilizations. Competitiveness, expansionism, etc., are the traits that allowed us to take over our planet in the first place and evolve to the current technological level we have today. It's pretty credible that similar traits would be required in other intelligent life if they are to ovolve to space-faring levels.

[@0lange]

You should check out the video called 'The Great Silence' by the channel LEMMiNO

[@efebrahim]

About the argument about intelligence being a boosted stat, that man needs moore tierzoo and casual geo

[@Miranox2]

Rather than an overpopulation problem, I'd say humanity faces a sustainability problem. If we run out of usable resources, then any population above zero will seem like too much.

[@diegotorres7652]

Great video! I like the comments and ideas you bring along with these videos, very insightful and interesting. I would love that you made some videos reacting to melodysheep videos, like Life Beyond, they really expand in this idea of how alien life would be in other planets and how exotic it could get, also it has amazing visuals and music, I would really like to hear what your opinions and thougths are about those videos!

[@Silver_Sage663]

Dylan this whole episode: It all because of them damn aliens!!!!

[@allanfrd]

You just described God the whole video.

[@RealCheemsJr.]

Exactly.

[@GabrielVitor-kq6uj]

As for me, it's actually ignorance to say for sure for both sides... we cant ever be sure there ain't no life outside Earth, as we can never be sure that is, until we find it

[@delars15]

maybe we are just in a really poorly populated part of the universe and in other parts so far away that we cant even see them is more population. Just think of earth here are all kinds of places normal landscapes with sea land rivers where its easy to live on the other hand there are deserts vulcanos deepsea icedeserts where u can find live just not as much as in the others so maybe on universe scale our galaxy or our and all our near galaxys are just in a kind of desert area of the universe just keep in mind the universe is freaking big and even with our best tech we would need thousends or tenthousends of years to travel just inside our galaxy and there are billions of galaxys in the universe and we are just the hard survivors in an area with bad conditions

[@cameirusisu1024]

fuck sake. Why do people always fall into the trap of realising the universe is so massive, they think life must exist, then totally fail to grasp we have no idea about how rare it is. its utterly conceivable for us to be alone, or for us to be first. there are a whole load of things, from age of the universe, and the galaxy, that will limit when life can even have a chance of existing, before you even get into specific local conditions within a solar system, then for the actual event to occur. For a bloke that says he is uncertain of anything, to then say "for sure" life must be everywhere, is absurd.

[@electrochipvoidsoul1219]

You should probably talk to an astrophysicist before claiming that aliens are responsible for the distribution of dark matter in the universe.

[@AJ-js4xi]

At like 12:50, to add to this statement, if a God didn't exist that intentionally created us, then yes, life would be plausible everywhere. In the scenario that God does exist and created us to have a relationship with him, we would probably be the only living creatures in the universe.

[@gonzotown9438]

While there are populations in increase around the world, pretty much all of these populations are expected to decline as they almost inevitably receive more education and technology.

[@localcompanion]

A really interesting thought experiment on the subject of "are we alone?" is something Neil deGrasse Tyson has spoken about many times. If you look at the elemental structure of what makes up living things (Hydrogen, Oxygen, Nitrogen, Carbon, etc) you'll find that these are by far the _most common_ elements in the universe. The idea that we are alone is almost impossible, and like you said, we haven't found alien life because we haven't really looked for it. Humans are immature and impatient, and we have a collective attention span of a five year old (Look at how short the space race was). Another thing to think about is how goddamn stout life is. Look at the history if Earth, for instance. We were blown apart by Thea (now the moon). We were a hot, volcanic rock for eons. We got bombarded with comets and water rocks so much it formed the oceans and cooled the planet down. THEN, life just RANDOMLY sprung seemingly out of nowhere? I don't think so. I think, like star fighting against gravity, elements naturally just bond together to form these complex strings of Information which leads to life as a middle finger to existence. (Not to mention the seemingly 50 quadrillion mass extinctions that occurred where like 99.9999999999999999% of all living creatures died off and then re-exploded) In my opinion, the greatest filter we had to overcome was the transition from single cellular to multicellular life. That could be a pressing issue looking forward. There is undoubtedly living creatures (single cellular organisms) at the bottom of some random ass ocean out there doing the same shit our own single cellular organisms did.

[@nishantyadav8331]

I would like to see you on JRE. You're perspective and the way to communicate is really captivating.

[@zolt5692]

the only physics stat (as a dylan) you need that i have is Einstein's birthday, ahahah

[@hectorvaz1402]

Maybe they don’t use radio to communicate or they don’t transmit any radio waves, it is possible they have a different way to communicate with each other and are looking for life using that technology

[@ZeroJustVibin]

Or since we are looking back in time due to how far away they are we can't properly check

[@revenger211]

Please raise your audio level. I barely hear you while the video you're watching is really loud.

[@juicebowl]

Indeed, something is wrong. Maybe the amp is not sending voltage to the condenser mic.

[@RedClaw87]

Natural selection happens to survival of the fittest. Therefor fighting and struggling is ingrained in every advanced living organism. Therefor aggression, fear and such are most likely ingrained in every lifeform. Therefore development of weapons and being selfish with the planets resources would be ingrained in all living organisms. This inevitably leads to selfdestruction at some point. That's a real dangerous possibility of a great filter.

[@Y0SK3]

Great video! Could you turn your mic up a bit?

[@magnus800]

Life might be common, but looking at this shitball we live on intelligent life is rare, and let’s be honest we are on borrowed time.

[@orionx79]

I mention half this stuff on a other recent video you said, about how our radio signals dont go far, about how going from single to multicellular was hard, Are you gonna mention how evolution was lucky for us next?

[@orionx79]

There is still one great filter ahead, The death of our star. Unless a civ can prepare ahead of time the ultimate great filter in a civ becoming multi system is the death of there home star.

[@minuette1752]

The real question is when do Tyranid hive fleets start showing up in our galaxy?

[@Xenko007]

love the video , i enjoy hearing your fantasy Thoughts and it's funny when I think things And then you say em

[@kingkiller1451]

Estimates on carrying capacity for Earth vary by several orders of magnitude for one...

[@santiagofung6547]

Loved the reaction! Speaking about alien life, do consider checking out Bygone Visions of Cosmic Neighbors by Lemmino.

[@vitalii-dan]

4:30 - depopulation already affects two-thirds of the world's countries, and the birth rate is falling even in those countries, where it is still above the population replacement level

[@mickfox3262]

Thats some good ideas you suggested. Never thought about it that way-aliens communicating through very different means. They might see our comms as morse code or even nothing that they dont even notice it. Yeah thats what I believe really. Whats the end goal of tech-pretty much to become a god. The ultimate convenience

[@mickfox3262]

Also there might be life out there but the govts might be hiding it. Only a select few that would be need to know. Yeah I know tin foil hat time ha

[@MichaelSmith-bn6hm]

Over population is part of the eugenics argument and we don't have a resource problem we have a resource distribution problem ✌❤🇬🇧

[@aaronmicalowe]

I totally agree. If we discovered that life exists elsewhere in the universe it would be the most profound and positive news ever, because then the hope of the universe doesn't rely on our reckless attitude to life. It would still have a chance even if we messed up.

[@pp-nx1ck]

The universe could have been in the rebound of a big crunch and an alien species made dark matter to re-expand the universe and it could have gotten out of hand and caused runaway effect that is making the universe still expand faster and faster.

[@tylerslagel5485]

We do know what to look for. And we’re not finding it. We can identify an intelligent radio signal. No matter who it comes from. It doesn’t matter what their language or message is. It would still have to be structured in a recognizably intelligent way. And we simply haven’t found or confirmed any of that in any of the radio signals we’ve received in the like, 50-60 years we’ve been listening for them.

[@SauceMeGud]

Man, an Elon fan? Really? We're gonna have to agree to disagree there, bud.

[@oban3773]

Very disappointing. Ah well.

[@deltalima6703]

As soon as advanced aliens notice us, they will kill us. Its what we would do, lets be honest.

[@melvar1309]

This video reminds me a lot about the Mass Effect franchise. A lot of the concepts from this video have been incorporated into the game. The great filter in the game was presented as an ancient AI that have been wiping civilizations whenever they've became advanced enough. Also there was a concept where the whole galactic civilization relied on ancient technology of a civilization that has vanished. Of course, it's all fiction but it's a nice playground for your imagination of what there could be. Also on another note, it's really hard to imagine that we're the only advanced civilization in the entire universe, yet alone the only life. If there truly isn't a way to communicate faster than light, we might never get to know for sure though, which is kind of depressing to think about.

[@69Kazeshini]

i believe aliens would have the capacity to be aggressive only if they are threatened aggressiveness comes from the need to have control over your environment, stopping wild predators from attacking you, controlling your environment by building structures, redirecting rivers etc. Also have a hard time thinking that they don't have some type of conflict when it comes to resource management. Easily available resources are limited and all life living on a planet has access to finite resources before they become spacefaring, i could at least imagine aliens having civil discussions and disagreements about using certain resources for certain projects and not go full human warmonger mode but there will still be some conflict of interest. I always laugh when people say humans are violent when anything that crawled up Darwin's ladder should be equally just as violent but have enough self control to not use violence.

[@legiongaming99]

10:37 honestly that notion could turn to become a type of evil saying we can't understand something cause we haven't done ourselves but if you do the same argument you made but apply it to nuclear science and the Greek philosophers if we taught them like we teach our people they would be able to do nuclear science it's not in our DNA or code we learn by learning

[@MFPF]

If we get so advanced as to create a perfect simulation of the universe, then it is extremely likely that we are a simulation :v

[@haruruben]

10:00 this visual echo thing is making me queasy like car sick for some reason….

[@olliebrocklehurst5357]

Hi Dylan, I discovered this channel a few weeks ago and I’ve been loving the content. But I think you should mix your audio differently on OBS Your mic is very quiet compared to the media you cover. I watch a lot of your videos when my partner is sleeping and I have to turn you up and down 20 times per video! Other than that, keep up the good work, science communication should not be under appreciated!

[@pasiahonen2196]

We also shouldnt expect that all life is carbon based or in anyway similiar to us.

[@maybenaught]

Kurzgesagt also did a video about lack of alien contact called The Dark Forest. It's an interesting follow-up to this topic.

[@alvaroluffy1]

actually we are almost reaching 8 billion people this year

[@mTealeaf]

That is a pretty good story idea. I might be able to work something like that in to one of the stories I'm working on.

[@MasterDayTrader]

I 100% agree with you

[@katy2176-p3m]

im not a fan of elon, dislike the man, but im glad you're able to be critical of him. the overpopulation can lead to climate change, and first world countries do the worst damage. it won't matter if we all become old, if the planet is burning. pick the lesser evil.