What would intelligent aliens look like? How Extraterrestrials may evolve
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What would aliens actually look like? Realistic extraterrestrials. Alien life is probably common in the universe. But by alien life, I mean life like bacteria other one-celled creatures. Complex intelligent life like mammals is probably exceptionally rare.
But whenever you see alien creatures in the movies, they look like humans humans. This would be nearly impossible. This is a reason to be highly suspect of any alien visitations.
The raw ingredients available to all planets are the most common elements in the universe:
Hydrogen, helium, oxygen, Neon, nitrogen, carbon, silicon. Our solar system is made of the same elements. But the key element to life is Carbon. Carbon is the backbone of every known biological molecule. Carbon can form 4 bonds with other atoms simultaneously. This makes it well suited for long chains of molecules that serve life, such as DNA.
Why can’t alien life be based on silicon? The complexity required for organic chemistry with silicon is not there.
All life uses Liquid water as a solvent, and Adenosine Triphosphate (ATP) to store and release energy. Water is the most abundant compound in the universe. It's a good bet tthat intelligent alien creatures on other planets are also based on water.
There is a critical distance from a star where a planet is not so hot such as mercury, but also not too far like Jupiter where it is so cold that water freezes. Earth happens to be at this ideal zone. So let’s look at what intelligent life that evolves on an earth size planet in the habitable zone of sun-like star, based on carbon chemistry and water would be like.
There is one thing that is nearly certain: an alien life form will be symmetrical. Intelligent life would need to be able to build tools. This would require limbs or digits of some sort to hold and manipulate objects. They would require some way of recognizing their environment - sensory mechanisms - the analogs of eyes, ears, noses.
Eyes seem to have evolved a few times separately on earth, so something like eyes may be a universal trait. But alien "eyes" would have evolved for the peak electromagnetic spectrum of their own star.
it appears crucial for a species to cooperate and communicate in some kind of language. So they'd need to do this somehow, not necessarily by sound, like us with our mouths and ears. They could use other methods.
Do they live in a sea, In the clouds, or on land? There is no complex life that lives permanently in the atmosphere. And most intelligent species on earth happen to be on land, instead of the sea. According to physics professor Bernard Bates at the University of Puget Sound, Aliens with advanced technology would have to be on land because technology needs fire to kick-start it.
Regarding oceans, there is very little light beyond 200 meters in the ocean. So the energy that ocean creatures have to work with is less than the energy available on land. This makes it hard for larger complex creatures to evolve.
If aliens live on land, they would also need some means of locomotion - mammal legs and insect legs evolved separately, so aliens would likely have legs of some sort. Predators on earth mostly appear to have legs for fast running. So the legs would likely be segmented like ours for more efficient running. Whether it is two or 4 or more is hard to say. Natural selection on their planet would probably weed out inefficient body plans.
Dr Yael Kisel, scientist at NASA’s Ames Research Center believes that most life in the universe as a whole is likely to be microbial. It is not clear whether intelligence is an evolutionary imperative. It is possible that the energy required to maintain a large brain is not evolutionarily advantageous vs. having larger teeth or higher speed.
#aliens
#extraterrestrials
#arvinash
But given the vast number of planets in the universe, it seems that even if our intelligence is an accident, we should still have company - intelligent neighbors somewhere, but they are likely to be so far away, that we may never encounter them. - วิทยาศาสตร์และเทคโนโลยี
That was the quickest 18 minutes ever!
Xen Orac Nice profile pic
Seriously!!! This subject needs way more breakdown and length
The quickest 18 minutes ever were any 18 minutes I was asleep.
Na still 18 min fam!
Yeah I'm sad it ended :(
"Aliens on another world would evolve in a completely different TRAJECTORY."
Excellently phrased! Many people assume that as long as the environment is the same, then the outcome of evolution will more or less be the same. What is forgotten is that this is also a historical development contingent on millions of chance events.
Bingo! As you can see from the comments, this is often not realized.
@@ArvinAsh Thanks! We've clearly still got our work cut out for us. It should probably be phrased in a dozen different ways to get the point across. :)
Yep... humans, meet the 'Gaia Hypothesis'!
Not quite a chance though. For instance, flying creatures probably don't look like elephants. Certain shapes might be preferred by evolution for this reason.
@@desoliver9712However intelligent aliens that looked like octopuses is entirely likely - the limit on octopuses is their very short lifespans (another underestimated limiting factor).
"Wait, what? You mean those things on the third rock evolved intelligence without living next to undersea volcanic vents?"
I like this comment.
"Advanced intelligent life can only evolve in eusocial hives with an All-Mother who can produce offspring of different castes as needed by the hive. It is only when the hive evolves the ability to invent new types of offspring with new abilities that advancement can begin. Non-eusocial species that can only reproduce copies of their current form are inherently trapped within their evolutionary niche, and since evolution is unguided, it will not steer them toward progressive advancement."
@@kevincrady2831 uh.. a hive mind yikes.
Aliens: that's the most ghetto shit I've ever seen
The funny thing is that with all the life in the universe that there is, odds are "little green men" the concept that we have created probably do exist in some fashion somewhere among the galaxies.
Considering how truly enormous thd universe is, there has to be at least one planet out there similar enough to Earth that the conditions were just right for a humanoid-esque species to evolve independently, right?
@@bobsnow6242 no doubt. even if humanoid life is super super rare there is still billions and billions of earth like planets. i guarantee humanoid life is out there and based on math alone there are most likely thousands or even more of separate humanoid life forms on many many different types of planets. i have zero doubt. cheers..✌
Yes!!!
The universe is just way too big for there to not be humanoid aliens and earth-like planets somewhere.
Well atleast if the universe is old enough for those aliens to have evolved like that.
I don't know how old the universe is or how long it takes for complex multi-cellular life-forms to evolve into existence.
But even if the universe is not yet old enough for such aliens to exist, they still will. It is only a matter of time.
Don't need advanced complex science to know that.
@@zombiedemon1762 our planet is only 4.5 billion years old and the univers is something like 14billiom years old so yeah, there has been plenty of time to evolve and die and evolve again and again all the way to spacefaring age.
@@billygames7107 . Awesome!!!! Thanks.
That also probably supports the possibility that older and more advanced aliens created humans artificially.
How specificly you have broke this down is amazing. I've been looking for something like this forever. Arvin, can you please make more like this? On what they would look like, what they would need to get here, more educated assumptions based on universal materials? This video can be hours longer and many like me would feel it's still not enough. You're the man, please keep pumping out this amazing stuff. You are a rare teacher. The world needs more.
Dou believe any of it and if so why?
Intelligent life may have appeared a few times in our galaxy, and we missed them all, due to time and space distances.
Another intelligent species who eventually evolve 500 millions years from now in the other side of the galaxy will certainly miss us completely.
True.
G'kar on Babylon 5: "There are things in the universe billions of years older than either of our races. They're vast, timeless, and if they're aware of us at all, it is as little more than ants, and we have as much chance of communicating with them as an ant has with us."
Why though? Why do you assume we'll be gone in 500,000,000 years?
@@DJRonnieG yeah. Babylon 5 is the best sci-fi series ever made...damn it
@@CallsignJoNay there is no specie that is still alive from Cambrian period. 500 million years a go was when complex body plans emerged and I think also first plants on land, if I'm not mistaken.
Look up the Cambrian Explosion. None of those species survived until present day. In fact 99% of all species that ever lived are extinct.
If we somehow survived for all that time "we" would be nothing like we are today. That specie would be unrecognisable. Basically we would be "aliens".
"They may be little, they may be green, but they most certainly will not be men."
I like that line.
👽👍.
Pretty sure it's a quote from someone. Einstein maybe?
09:19 - Reminds me of that old saying "A camel is a horse designed by a committee."
and a donkey?
Physicists:
"We discovered life on another planet! This is brilliant!"
Taxonomists:
"Oh... Oh no..."
Why does it look this way?
Taxidermists: "Wonderful!"
Taxonomist here!
Oh... Oh, YEAH!!!
Astrotaxonomy?
time to redo everything again
I'm so happy to see an accurate depiction of a DNA molecule !
It's called the Corona Slein Virus.
A strand of DNA is much more dynamic than that static picture. th-cam.com/video/OjPcT1uUZiE/w-d-xo.html
Accurate how? If we’re being totally pedantic here, DNA only has that helix in its hydrated form (literally surrounded by a shell of water) and would be supercoiled because even one additional twist in the strand from brownian motion in solution would cause strain that needed to be relieved.
This is literally everything thing I have thought about in the last couple of months. Thank you so much.
Agreed been thinking about it
That gesture at every start when saying "right now" never gets old..😎that's cool.
👌👽
some of my favorite depictions of aliens are from Arrival and Avatar. Avatar's aliens are simply beautiful, elegant, and exotic. Arrival's aliens on the other hand show you how unimaginably different alien life can really be. Not only are they like 30 feet tall, but they also look like nothing we have on Earth, even their skin looks like a material I've never seen. And they communicate with beautiful written symbols and a language that allows them to see through time. I really hope we encounter some type of alien in our lifetimes
"a language that allows them to see through time."
Really? Languages cannot do that. You would need to be able to see through time FIRST.
Ethelred Hardrede I mean it is their language because when humans learn it they too are able to experience past, present and future all at once. I’m not saying it’s realistic that’s just how it is in the movie
@DoubledEdgeSword321
Some of the humans.
@@GhostInPajamas
" I mean it is their language because when humans learn it they too are able to experience past,
Yes but its pure BS. It does not match reality to the point that it does not allow for a WILLING suspension of disbelief for me.
I am willing to go with fantasy if the humans sorta realistic. I am will to accept fictional science TO A POINT. IF the movie is basically fantasy in space, like in the Empire Strikes Back that is OK, as long as its a good story.
A mother being this cruel to a purely POTENTIAL daughter is both bad science and bad humanity. I am just not going to spend time on that movie with thousands waiting to be watched by me. I found a long time ago that anything that WRONG HEADED can needlessly upset me. Maybe not anymore but it happened with a COMEDY that was that wrong headed when I was in my teens. It got me depressed, the most I have ever been and I am 68 with both my parents having died and that damn film had me chemically depressed. I was aware that it was stupid and I got over it in a couple of days. That once was more than enough.
Everything I have seen about that movie puts in that class. Depressing and stupidly so. No thanks.
Ethelred Hardrede
Avatar's aliens look too similar to humans, hence are so beautiful. Arrival's aliens resemble squids (but with different organ placement) with arthropod-like legs.
I learned Something about Astronomy, Chemistry, and Biology in this 18:02 minutes video. 👌
I watch all videos of Biblaridion. I have an MD, I honestly enjoyed all his videos about that fantasy planet & its aliens. It really makes sense.
Your videos realy cheer me up and are well made and structured,keep up the good work man ✌
very deep and good analysis.hope we found alien in our lifetime.
Hasassssss, al we have to do is look on the mirror. We are the Aliens, to planet earth. Brought here by trancespermiea
It found us, cov 19 is here.an killing us
@@nissanaltima6187 Covid-19 isn't an alien.
lol, an anlysis of fantasy is a waste of time.
Naved Iqbal: "Beware of what you wish for, for you may get it". Well, if we do find intelligent life, it just may be Man's worst nightmare, as suggested by Prof. Hawking. Accordingly, don't assume it will be an exciting event when the reality could just as easily turn out to be terrifying.
Thank you Arvin Ash!!! I say the same thing. If life is so abundant on earth, and you have to literally search really hard just to NOT find living things on earth, I find it extremely hard to believe that there is nothing out there in space. And I think that if conditions are right, I'm convinced that life THRIVES.
Agreed.
But, evolution needs a lot of favours: the right distance from the star, the right gravity, atmosphere, moon, seasons, tides, axial tilt, stability of star, stability of local galactic environment, avoidance of meteorites (or not), .. and that's all assuming that molecules can just get together and start replicating, feeding, respiring etc. out of a lifeless chemical soup. So yes, likely there is plenty of life out there somewhere, but perhaps not under every rock we turn over.
@@richtalk34 I think intelligent life probably needs many of the things you outlined, but simple life, like bacteria could survive those things.
All terrestrial life required a single replicating molecule in the past - so it’s really a question of how often that happens, by chance. Maybe a lot idk.
I absolutely love this video it takes the very likely existence of intelligent alien life and shows what they would more than likely look like and not what Hollywood and others drill into us. I'm not saying possible abductees are lying or that they couldn't actually look like us im just love the 100% scientific take on it.
👽👍.
You’re videos are amazing, exciting, and interesting . how you explain things is very explanatory. Thank you
Thanks my friend! Glad you enjoyed it.
One of your best videos Arvin . Basic knowledge about the fine nuances about fundamental principles of life explained simply . Hats off
Glad you liked it!
And remember: *if it bleeds, we can kill it!*
Unless it's the alien from the movie "Alien?"
@@ArvinAsh Either way it's *one ugly ***********
@@ArvinAsh What was that movie where they killed the alien by throwing water at it?
@ Amghannam. Day of the Triffids..it was sea water.
.... and eat it, unless it uses cyanide in its metabolism. Yum yum..... THUD.
Excellent lecture Arvin, I've learned a lot!
Omg. Thank you for such a good and different concept
Glad you like it!
I hesitate to call humans “super intelligent,” Arvin.
It seems like in every video discussing human intelligence, there's bound to be a comment like this one.. Humans _are_ super intelligent.
Yeah we are super intelligent. We have comprehension, and amazing intelligence
@@ihsahnakerfeldt9280 half of us vote for fascism, I wouldn't call that very intelligent
@@ihsahnakerfeldt9280
As compared to what? I would like to see definitive proof of that.
Intelligence is what makes us able to be stupid.
"Intelligence" in an animal sense seems two-sided to me.
Intelligence is the ability to both be very smart and very stupid.
"There are more planets bigger than Earth than smaller than Earth."
I'm pretty sure this is utter nonsense. It certainly is if it's just based on a count of known exoplanets. We know about more bigger planets because bigger planets are easier to detect. It has nothing to do with the actual ratios. This will be true for a long time, because, as our technology improves to be able to detect smaller and smaller planets, will also be able to detect bigger planets further away and in more difficult to detect places. We simply don't know how many smaller exoplanets there are. In addition, even if it turns out to be true, it would largely be because of the lower size-limit on the definition of a planet. Observations show the general pattern that smaller objects are more numerous than larger ones throughout the universe. (There are many more asteroids than planets, for example.)
I feel the same way about dark energy, not enoug data points to make that statement.
It’s also what we consider to be a planet too, Ceres or Pluto are both smaller than earth but are not planets. We don’t use this cutoff for larger planets unless they turn into stars. We can’t really detect those smaller sized objects though, so that is correct.
HH, completely agree with your analysis. I find it disturbing that you had to point that out because it is so obvious. Do you suppose that otherwise smart planetologists (sp?) are dumbing down their presentations too much? I could understand doing that to a minor degree but it would have been easy enough to write, " To date we have found more planets bigger than Earth than smaller than Earth, but large planets area easier to find." I don't know. Scientists are human too. One might not pay as much attention to the details in a U-tube presentation to us unwashed masses than in a serious paper published in a peer journal.
You can also have a super massive Earth but have the same gravity as Earth if the super massive Earth's rotation were higher than ours. The higher the rotation speed of a planet the less gravity you experience. Even on the Earth the gravity of a person on the equator vs the north pole is different, not because space time is warped differently, but because of centripetal force due to the spin of the planet.
:@@finaltheorygames1781: So, Mesklin?
en.wikipedia.org/wiki/Mesklin
The aliens in the film Arrival are the closest thing I’ve seen to actual aliens in a mainstream movie.
Thanks for showing Biblaridion - another great channel!
heck yeah, biblaridion gang
I didn't know silicon based life was unlikely for the reasons you stated. Also, the take away is basically that alien life is likely to look a lot like like here on Earth, despite the first sentences of the video
Star Trek TOS “the devil in the dark” was about a silicone based lifeform. Cool episode
Isn't there a contradiction? Saying alien life wouldn't be anything like that on Earth, and then explaining there seems to be some sort of recipe (or at least universal trend) for life, especially sophisticated species.
From that very reasoning, it sounds like intelligent aliens would pretty much fit into our frame of reference, doesn't it?
(Fascinating regardless)
Yep, that's irony. We keep coming back to creatures that resemble us in many ways. But it could be that Biblaridion and I are too anthropomorphically bound to think beyond our narrow mindset.
@@ArvinAsh Pretty sure some madman out there will code a random life generator taking into account every factor, so we can see what happens outside of our anthropocentric mindset.
Thank you for the informative video
It is not a contradiction, at most a paradox, or simply a figure of speech. Of course, alien life, in general, may be unlike anything that we have encountered so far on Earth. In principle, there are infinite variations that alien life-forms can take. However, once you take into account the physical restrictions that technological intelligent life has to have in order to evolve in a planet, then that number decreases considerably. As it happens, some of them could be very similar to us, i.e. they must have some sort of visual cognition (e.g. eyes), appendices for manipulating things, legs or some sort of mobility etc. That is the genius of this video. It captures many of those ideas.
I've never been comfortable with the term 'alien life'. Since our entire universe emerged from one source - at the big bang - then naturally all lifeforms, although living on different planets and separate galaxies, will still be related to all life here on earth (which itself is derived from a single cell many billions of years ago). So perhaps the term "extra-terrestrial life cousins" might be more fitting name, rather than 'aliens'. ;-) (Which to me always implies some hostile/separate lifeform to ours).
@@jjt1881 The range of life here on Earth today is staggering. From corona virus to the blue whale. From tiny, spiky, alien footballs from another dimension that want to fly up your nose to a huge fish that is not a fish but it is the largest creature ever to exist. We don't have to look to another planet to find life that is so vastly different from humans that it defies belief.
I do believe that some octopus can change their skin texture, color and body shape to match their environment th-cam.com/video/q8xJ13pAZNw/w-d-xo.html and that spiders need breathe no more than once a day to survive. I can't imagine you can find anything stranger than this no matter where you look.
you are the only channel I like listening to. It’s all very interesting.
Extremely well thought out discussion. If there is extraterrestrial intelligence, the tiniest variation in the starting conditions may have profound and unpredictable downstream consequences. This leads to the possibility that certain forms of extraterrestrial intelligence may be unrecognizable to us. Who knows how we would response to such variations? Fear? Horror? Curiosity? This is a great video to begin such a discussion.
All Life Intelligence Evolved from Nothing to Something.
A.L.I.E.N.S.
Maybe we understand the looks of aliens as less as a cell can comprehend the look of the human body which it is part of.
Maybe they have evolved to be part of Quantum fluctuations and are invisible to us, because it looks chaotic to us. Just like the "Force ghosts" from star wars? This would eliminate the need of big massive space ships to travel.
That's pretty creative!
Hi, three years later I know. But we must remember that these are aliens created for movies and games by human beings' imaginations.
You understand that " evolve " means unroll?
what exactly do you suppose or believe to be unrolling?
I haven't heard of Arvin before, but these videos are great. I'm watching all of them.
Awesome, glad you like them!
Hello, same with me here
I always enjoys your videos, thank u for bringing this quality content to us
I hope you make this a future video . . .
How far back in time do you have to go until something other than primates, such as ravens or dolphins or parrots or octopuses, were the most intelligent animals on Earth?
He always explains everything so easily ❤️ love frim India
That was a great video sir, you have yourself another sub.
Welcome aboard!
you are amazing Arvin!!!!!! thank you a lot for all your videos and the information you provide!!!!! It helps me understand so many existencial doubts!!!!! :) thank you, big hug from Argentina :)
Glad you like them!
Awesome vid! Will you make a video about how silicon based life might look like?
Possibly! If this video becomes popular.
interesting as always, although I remember reading in a Dawkins book (I don't remember which one, and I couldn't find the reference), where the famous biologist states that it would not be so surprising that another intelligent species, which occupies the our own ecological niche, independently develop a form similar to ours. on the other hand, evolutionary convergence is a phenomenon that we often see on our planet: a bat looks like a bird and cetaceans look like fish (to give two examples), although they have nothing to do with each other. certainly given the enormous distances and the cosmic limit of the speed of light we will probably never have an answer ...
A sapiens species need something to manipulate things. Tentacles are "unlikely" because of their inability to perform fine manipulation, they usually have suckers on them and very different purpose than toolmaking. The tentacles are not good at intricate work. A human can easily hold a pencil and a drinking glass, in the same hand, an octopus can't. Imagine something "octopus like", but instead of eight arms, it has a hundred. No suction cups, just fingerprint type ridges, for traction and grasping. Each with it's own little brain relay controlling it, and a mind capable of astonishing coordination and dexterity. Such a creature could manipulate it's environment, and even use tools compelently, and with great efficiency. Perhaps even better than we can. It could use five or more of it's limbs together for a single task, effectively creating what we would think of as arm, with a hand and five fingers, but at the end of they days it's gonna require some kinda means of locomotion, some means of manipulation of the environment, but also needs to see in 3D with binocular vision. So it will likely evolve from predators or at the very least omnivores. Also likely that they would form some kinda social tendencies in packs. Unlees they developed a hive mind. The thing really holds back octopi is the parrents always die around when their offspring are born soo no cultural information is passed down between generations. Well, octopuses are really rather dexterous; especially compared to the other animals. But they still have perhaps even more dexterity than us, but I may mistaken. And with the lack of being able to provide oral information, I have found away around that. The octopus has thousands of offspring I believe, and when it lays its offspring it dies shortly after. But perhaps some of the offspring could avoid having children so they could survive later enough to give any information to the offspring that their "sister" laid. And if that doesn't work, I could just presume their life time is extended due to a certain environmental pressure (nobody ask me about tentacles and stuff, but i say it always)
Very nice video! this is brilliant! Thanks allot!
This is great, I'm working on a video game set in an alien world and thought of this idea of life looking entirely different from here's, but just similar enough to "make sense", and this is exactly it. Really helpful, thanks!
Coincidently I was also thinking about this today. There are so many places to visit in the galaxy itself that the probability that some alien who already visited earth might visit again should be tending to 0.
Just see the Hubble UDFs and XDF and you will not at all feel that you are alone anymore.
Or the worst thing maybe that ALIENS ARE HAPPY LIVING IN THEIR OWN STIMULATION.
By chance if an alien entered our solar system then we'd already detect it. Or we cannot find them if they have already developed the Warp drives.
The best video i've seen today. Thank you.
You just earn a subscriber.
Thanks. Welcome aboard!
Very good intro to the subject. Packs in a lot in just 18 minutes.
Great video! 8:22...what's that noise? Love your content!!
I only believe in aliens if they’re naked...
Yes I awoke tears ago an had a naked Nortic ET.wanting to mate with me,. Yesssssssssss. I've never been 5he same.since
Think the female alien would look like Barbara Eden?
Must mean the perfect beauty and form of the Nordic ETs, blue eyed, blond, sticking features, tall and quite aggressive. Some of us way back liked to monkey around and have RH positive in our blood and others seemed to have pursued the next best thing.
“Boffin gets head from hottie saucer pilot”
Alien: Umm, I think inelegant life would probably only have a couple arms and lags and no teleportation gland.
Learn to spell or use 'spell check'. Please.
You don't want to learn more about the lagging of inelegant life?
Grammar nazi alert!
Great thoughts and insights. Much to ponder.
This was really awesome, thank you
Ayyy our man biblardian is in the video
I have been interested of this topic for more than 20 years and have watched countless of hours of documentaries and read hundreds of articles. They just basically reinforced what I either already knew or already figured out by myself.
But after seeing this video I can say wow, I learned something new!
SatsumaWorld which was?
Thanks for your videos.
I really enjoy them.
Wow, that was really fascinating, many thanks 😃😃
From the scientific perspective the answer is : we don’t know, in fact we don’t even know the proper constraints let alone life or intelligent life. But the especulación was pretty good.
I thought it ironic that he said super-intelligence and showed people just wandering around, my thoughts were yeah any alien seeing that would be amused by the apparent randomness
So basically, they do need to be similar to land based animals like humans....
Yes, but only to a degree. It's highely unlikely that our complicated evolutionary history happened exactly the same on a different world. We may have a lot of similarities with other intelligent lifeforms, but they would truly be alien to us.
I love this crossover, I’m a big fan of both channels!
Great!!Very well researched and presented!
Thank you!
Great video! Maybe 20 years ago, I saw something in the news that stunned everybody! It showed creatures that we never knew existed here on Earth. They were a couple thousand feet deep in the ocean, in a depth that was over a thousand PSI! And worse they were living in an area that had an underwater HOT spring of (i think) petroleum or some chemical that would kill humans, as the rest of that environment would. It made scientists re-evaluate life on other planets. Searching for this type of thing, I discovered a new word to me: "Extremophile." - Life forms that are extreme! Thank you Arvin! 😎
One one ...
Literally no one..
Ash...
Sharing dancing videos of Aliens..
😂
Great videos! :D
Thanks arvin!
They're gunna find something they cant destroy if they keep it up lmaoooo
See you all in 5 years..👋🏻
When this video once again pop up in my you tube feed.
love your channel man!
Glad you enjoy it my friend!
Excellent summary of a complex topic, as always!
The other really-important thing about water as a “playground” for Biochemistry, is that it’s a polar molecule. That makes it a _vastly-better_ solvent than liquid methane, or liquid nitrogen, for example.
I remember seeing a demonstration where a soda cracker was immersed in water for a few minutes, and it dissolved into mush. No surprise there, but they then put a soda cracker into a liquid hydrocarbon for nearly an hour, and it came out still crisp!
Interesting. I've never seen that experiment, but it makes sense.
I still think it's likely for them to be somewhat humanoid looking. Mostly because I think evolution will be similar everywhere in the universe and most habitable planets will have similar environments. Good evidence for this is how many times eyes were selected independently in vastly different environments here on earth. From swimming deep in the ocean to swinging in the trees. Sensing electromagnetic waves is a huge benefit regardless of where you live.
Evolution would work with the same principles, but would not yield the same type of organisms, even if you could "restart" Earth and let evolution process take place again, the result would be quite different than what wee se today, we probably won't even exist, other life forms would have evolved, or maybe even life would not have thrived here.
@@dariomartinez6358 Even dinosaurs where different and look 'alien' to us, even if they were living on the same planet like we do, but with higher levels of oxygen and some other differencies at that time. Imagine what an ecosystem living on a planet in a habitable zone of a red dwarf that hasn't stripped over the atmosphere yet due to a solar flare would look like.
Have you seen life beyond part 2 by melody sheep? Covers similar material.
Great video...
Its all conjecture considering we have a sample size of exactly 1 to go off. However, the process of elimination with each facet of ET life, utilizing a scientific approach, was great to watch.
Great video. Although, I think plants growing in a low gravity environment wouldn’t grow very tall but like vines and grasses or fungi they would they would spread far.
Alien life would resemble the environment it comes from depending on its gravity, atmosphere and many other attributes, its impossible to predict, bit like trying to imagine a new color?
Let's hope life elsewhere does exist, I'm sure it does👍♥️
"super intelligent, spacefaring life, like humans..."
Had to laugh
hahaha - in practice we're only marginally more spacefaring than a seagull. excluding unmanned probes and fairytales.
Someone should tell him Star Trek isn't real ;-)
We are massively more intelligent than any other life on earth, and we have been to space. What's funny?
People love to hate humans and crap on human achievement.
@@yad-thaddag Wait, Star Trek isn't real?@!
this was so good !
I’m a little late to this video, but one of the things I’ve been thinking about pretty frequently lately is how the size of a planet might “lock” intelligent life onto it.
For example, it’s pretty hard for us to leave the earth. If our planet was more massive, we might have given up on flight long before we ever got to powered aircraft, let alone space flight. (I think balloons are likely always an option.)
Thoughts?
7:10
Fog is not a gas, it is actually liquid, condense vapors of water gas.
...🤦♂️
correct
Yes, water vapour is an invisible gas.
@@seankayll9017
Actually water vapors are visible, steam is invisble.
@@seankayll9017 I can see clouds tho
why wasn't there a nudity warning prior to when the nude aliens were walking around.. my kids are now traumatized.
Just don't take them to watch any Sci-fi movies.
Another great video. Good work.
Thanks my friend. Glad you enjoyed it!
Thank you for this video, it is as if you read my mind and expressed on this video. Completely think exactly same as you
Wonderful!
why aliens always naked?
Good question. Wonder if we are being drawn naked on their planet. Let's blame the Voyager mission.
Gh00St2099. Even more incredible is when Banner turns to Hulk, his clothes are ripped apart, but not his pants.
@@paxanimi3896 Yeah, I noticed that too. What's with that?
Arvin please explain why vaccine for covid is still on making. What are those difficulties facing during a novel vaccine development.
Testing is required to make sure it is effective as well as safe, and it is not so easy to make them in mass quantities. After you figure out the exact chemical composition, you have to come up with a method to synthesize the proteins en masse, which may require custom-made machines, and you have to figure out a way to store it long term without degradation, as well as transport. Scale-up is not easy. It's much easier to hand-make small quantities for lab testing.
@@ArvinAsh tnx for your information ♥️❤️
@@ArvinAsh thanks buddy
Hey Arvin, love the content, as always reasonable and concise.
Unrelated to this video:
Ive been thinking alot regarding new gravitational wave findings.
Is it possible now to consider that the milkyway galaxy may not actually be a spiral as we had thought/perceived?
Rather than the majority of matter being set in a spiral arc, that it may actually be alot straighter and we are perceiving it as such due to the bend on spacetime?
Extra thought, could there be more to our galaxy than we are able to perceive/detect because of the bend/waves?
Well, there is a lot more dark matter than matter in the galaxy. But even with all that, the bending of space time alone would not result in the spiral.
Top notch! You missed a few crucial points, methinks:
1. The very configuration of our solar system is highly unusual, with larger planets in the outer orbits that have effectively shielded the earth from multiple obliterations (allowing the time for life and evolution to occur in the first place).
2. Intelligent life in the form of mammals (let alone humans) was only made possible by the freak accident that wiped out the dinosaurs, the most successful (and probably relatively unintelligent and certainly not technological) life form on earth. The kind of intelligence that gave rise to primates could only come into being in the delicate balance between insufficient brute strength and environmental insecurity that gives an edge to smaller but more intelligent and adaptable (and social) life forms.
3. Intelligence would more likely NOT be the kind of intelligence exhibited by apes or humans - a much more likely form of “intelligence” would be the survival intelligence and efficiency of eusocial organisms or superorganisms, or even mycelial “intelligence”. The intelligence that humans have evolved is probably a fluke because there are plenty of other evolutionary pathways that lead to (more) stable survival. Even after we’re gone, the ants and termites and fungal mycelial networks will continue to survive and thrive for millions more years, regardless of pollution, toxicity, radiation, temperature variations, etc.
4. Finally, even if there one or two other technological alien civilisations, they would probably not have evolved much earlier (if dinosaurs evolved 250 million years ago, and our evolution occurred over 60 million years, then an equally “lucky” version of primate-like intelligent life might have come into being at the very earliest about 200-500 million years ago, allowing for a timespan of around 10 billion years before there were even solar systems that had planets at all, and another 1-2 billion years before a carbon-rich, liquid planet could support organic life either. The universe is simply not old enough for there to be much of the way of intelligent life.
And then if any technological life did appear elsewhere in our galaxy, the electromagnetic waves of their communication signals would take up to 100,000 years to reach us. Perhaps way too weak to detect, but if there has ever been a technological intelligence that evolved anywhere in our galaxy much earlier than that (even if only 1 million years ago), we would surely have detected very sophisticated communication signals from one or two pinpoint in the galaxy by now.
So either there was a highly technologically intelligent life form any time with the last million years (but older than 100,000 years) and they got wiped out (also at least 100,000 years ago, which means their signals reached earth long before we could detect them and then winked out 100,000 years after they disappeared) or there never has been a technological life form elsewhere in the galaxy (older than 100,000 years, say). OR there are one or two others but they came into being within the last 50,000-100,000 years or so and their TV shows and mobile phone chatter hasn’t reached us yet! We’ll just have to wait another few tens of thousands of years before we get to see the reruns…. 😅
Did he just call humans 'super intelligent'? Best joke of the day.
Well, it's all relative isn't it.
Well you might not like it but it is true :) rank all life on earth based on their intelligent levels and you well see :)
My question is, if earth started from basically nothing, and we ended up with humans, wouldnt another planet in space do the same thing? Depending on where that other planet is in time compared to Earth
Although it's possible that Carbon based life forms on another planet based on something similar to DNA, the ensuing trajectory of evolution could take it in a completely different path. It is possible for example that it does not have a central spine, like we tried to depict in this alien, or the kinds of sensory organs we have.
@@ArvinAsh I agree with most of the analysis you provided here and in the video. I would like to share a slightly different perspective on the intelligent life question. We have seen how life has filled every niche and evolved in completely different paths yet despite millions of variations and paths only Humans have evolved to become intelligent (including technology) but perhaps more importantly to become conscious. This would suggest that a Human type model, whilst evolved for Earth conditions, would probably evolve anywhere with similar (Earth like planet, similar gravity, temperature band etc and therefore similar vegetation conditions) conditions. Evolution has already tested more variations than we can imagine ourselves and only one has born fruit. One catch to this argument is the other planet would need to have a similar history to Earth's or a least have a similar time period to the Cenozoic Era leading up to today.
On a slightly different point Earth like conditions would also require a electromagnetic shield (provided via Earths spinning core) and a number of rare elements particularly once technology advances. Many of these elements are only produced inside suns so early star systems may not contain the required mix further limiting the number of suitable worlds. Time dilation (affecting the relative speed of time and thus the speed of evolution) may also play a part (along with distance and the speed of C) in us not meeting any other intelligent life, yet.
Imagine evolution like human history. Go far back in history, to the times of Moses. What if Moses died as a sickly infant? Do you think we would have the same countries, religions, cultures, and languages?
@@nonomen6665 who knows if Moses even existed at all . Most things one read in the bible have to be taken with a grain of salt.
this was so complete
Your videos are really good!
I love the we (intelligent) humans say it will probably be like this and nature wouldn't do that. I'd put money on the probability that everything we think will be wrong
Sir. Yours is about the only assumption that's made any sense so far. Thank you.
not if our assumptions are correct.
Everything?
I am still getting over the idea that the Sun does not revolve around the earth. At least the earth is still flat.
@@joejamescat4126 lol
I bet real aliens look like Tiny nano bots like structure.... Like Von Neumann Bots... More like how aliens were described in The Expanse Series
Possible. Or the alien probes look like that, as I mentioned at the end of the video.
What if humans are the Von Neumann probes? We self replicate, exponentially, and explore, and are probably going to infect other planets soon. Hmm...
@@fusion9619 but we r highly inefficient... Probes would have great interlink Communication.. Viruses are better examples or analogy
@@fusion9619 I suppose if humans are really vain, we could send our DNA to other worlds, but it's hard to imagine human beings surviving in space long enough to colonize other star systems.
@@ArvinAsh
RE: ". . . we could send our DNA to other worlds . . ."
Read the short story entitled, "Long Shot" by Vernor Vinge.
RE: ". . . but it's hard to imagine human beings surviving in space long enough to colonize other star systems.
"
How about a generation ship?
Awesome video. I learned alot
An excellent qualitative approach without the quantitive nonsense of The Drake Equation.
8:30 With 200 million galaxies, earth like planets are still more
Me: yeah but how many light years away?
I don’t think it’ll be of any use to us FOR NOW
Thanks for the videos
200 billion stars. Not glaxies (which is more), or million. Billion. Also, people rarely tell you that 200 billion is the *minimum* because that's what we can see. We can't see a large segment of the galaxy on the other side of the galactic core, and not every agrees where the sides of it end. The estimated range is 200 to 400 billion stars, and it's around 70,000 ly across.
I think life is a symphony of the interactions between the bigger and smaller forces of the universe. Gravity, electromagnetic waves, pressure and even Time and all its mysteries. But the sound of the symphony may be the same, sentience conciousness intelligence love. I dont know. And further more did you know the eye evolved from three separate occasions but developed similar analogous parts. So maybe based on this principle wherever life forms based on the forces and interactions of nature its not far fetched to assume they may look a lot like us than we think. and also its also plausible to assume the conditions on earth are much more rare than we thought. For example the recent discovery that the black hole in our milkyway is less violent than other black holes, the local fluff, etc etc. All these could be factors which are exponentialy rare. Which makes the delicate and precious symphony only possible on earth. And also maybe from earth it will spread to the entire universe.
You hippie lol. Fuck this symphony theory shit. Vibration bs. The real shit is aliens come from inside earth and other planets in the solar system. Thank me later
Ahmedyn Kemal. Good argumentation. Yet, I think in spite alien life would have some features similar to our own, like eyes and limbs, only by chance they would have a humanoid form.
Look at the diversity of life here on Earth, how many humanoid species are there ? And they’re all very closed related.
@@paxanimi3896 yes i think that is a good argument. Even if constraints move the life design inside certain directions, the variation is still wide enough to have unrecognizable forms from humans.
You explained what i was looking for. ❤
Another amazing video!
Appreciate your channel. Thank you for being a science-based realist and not one of those flipped-lid quantum bozos that show up so often on TH-cam and in your comments section.
You mentioned the carbon atom and its bonds versus silicon. Carbon molecules are both strong and flexible while still being reactive under moderate energies. Silicon is too rigid under moderate energies and, depending on the molecule, either shatters when you drop it a few centimeters or you have to hit it with a big hammer, multiple times, to change the bonds.
A telltale is when we look out into the interstellar medium. We have identified many hundreds of types of carbon molecules naturally formed in abundance while the next most abundant is silicon with just a few handfuls.
If I were a betting man, and I am, I would bet a full course dinner, including wine and dessert, at one of the best steakhouses in Phoenix (probably Morton’s) that of the first 100 separate abiogenic life systems we find in this galaxy at least 99 of them will be carbon based.
Legend says there's Alien life but it's actually silicon based..
No one says that. Only you. And sheeple pseudo scientists like Arvin.
Silicon life is not possibru
All legends are toes.
@@pecfree Do you have to be so ungrateful and mean at this moment in time when everyone on Earth is suffering? Do you know how much time and effort, besides how much research, knowledge&skill it takes to create a high quality educational video such as this?not to mention that it is a gesture of kindness towards humanity?
@@pecfree Please go ahead and make a better, original and more scientific video on this subject that he did.
Wow. This was really good
This is too good it felt like 5 minutes.