Alien Biospheres: Part 1 - The Planet (ft. Artifexian)

[@PalaeoJoe]

Two suns? No lets not get crazy! ... Can we put hydrogen sulfide in the atmosphere!?

[@Shrooblord]

trololol ikr

[@gabrieltallent8080]

"Atleast not yet"

[@demon_xd_]

That one planet with the same sun types as Tatooine that NASA found: *am I a joke to you?*

[@ls200076]

@@demon_xd_ yes

[@milky694]

such an edgy planet

[@jordythecat7181]

Biblaridion: Let's add some hydrogen sulfide. *Disturbed Artifexian noises*

[@abird9724]

*JUST* *EARTH* *STUFF*

[@peterk7428]

@Larenz De Chavez Planet Clorox.

[@amehak1922]

​@larenzdechavez442 he didn't create himself, it's from a book.

[@TAP7a]

Bib, 3 years ago: “I want hydrogen sulfide” Bib, 3 years later: “the hydrogen sulfide has slowly been absorbed by the crust and everything that relied on it died”

[@michaelwoolley7034]

Not unreasonable, Earth's atmosphere was also full of such toxic gases billions of years ago which have since disappeared

[@SomeKindaSpy]

Literally what happened with Carbon Dioxide-dependent micro-organisms when Oxygenation occurred on our primitive earth.

[@mitologieantiche3458]

Artifexian & Biblaridion make up a great team. Waiting to see how life could develop on such a planet

[@mitologieantiche3458]

Yevhenii Diomidov Then we get to the other end of the alphabet with WorlduildingNotes and Xidnaf.

[@glumbortango7182]

@Yevhenii Diomidov Conlang Critic?

[@petersantos6395]

No carbon based life can grow in this atmosphere

[@MisterSketch4]

Peter Santos why?

[@lucasahumada6913]

Carbon based life did grow btw,from the future

[@gregli9821]

biblardion: let’s not get crazy *proceeds to put a low amount of oxygen, a huge amount of carbon dioxide **_and_** hydrogen sulfide in the atmosphere*

[@abird9724]

Ynow the normal stuff.

[@mpice2666]

He said yet tho! Clearly that means your joking comment is wrong! And not just a joking comment!

[@duatia5315]

the starting atmosphere of earth was a collection of hydrogen compounds, with evidence of a large amount of introduced sulphur and lithium, those being the most common things on asteroids colliding with earth. Oxygen only came about due to a mass extinctions caused by a fluke.

[@rafazrahman9707]

He said let’s not get crazy then “at least not yet”

[@masonbooh5941]

He did say “at least not yet”

[@StilvurBee]

"Two bored gods talk about how to design a planet"

[@bonemo7783]

how like 50% of creations myths start.

[@miguelfrancescohogar7501]

BoneMo 2 or more haha

[@abird9724]

*9 9 % o f c r e a t i o n m y t h s .*

[@cobinasaur]

*selects title, right click, inspect* Perfect

[@muninrob]

While legions of their followers listen....

[@TechNinjaSigma]

"Quick little series on setting up a planet. In and out; couple of 10 minute-ish episodes" 5 years later... *Mr. Kitty - After Dark*

[@storyspren]

Heads up for humans traveling to this planet: the atmosphere will kill you faster than losing your arm.

[@Idkoogabooga4]

Can you explain why

[@kc1171]

Best girl two words: Hydrogen Sulfide

[@KateeAngel]

That is why you should wear space suits on other planets

[@HueghMungus]

@@kc1171 What does it do?

[@Luigicat11]

@@HueghMungus It's very poisonous, corrosive, and flammable. It's also the reason why rotten eggs stink, so the planet's gonna kill you AND smell nasty doing it.

[@shwoopyrrale1694]

"Nah, i want a triple star system, with a binary planet, with 4 moons made entirely of varying metals, and its mostly metallic" (i doubt this would work)

[@dudeguyson7776]

What does "binary planet" even mean? Just two planets?

[@shwoopyrrale1694]

yes, a binary planet would be two planets orbiting each other while somehow not crashing into each other due to a sustainable orbit

[@marthachampagne316]

@@dudeguyson7776 think Pluto and Charon, technically they are a binary dwarf planet system.

[@jauleanimations5404]

Probably it will just blow up

[@besquareorbethere2680]

It could work I just need to know the atmosphere, density, and position of your planet.

[@squidheadss7105]

Speculative Biology Time! Time to create proto-life forms and evolve them into realistic ones.

[@davidegaruti2582]

it is time for the shelled ones to take what is rightfully theirs , the spined ones have taken our seas , our land and even our skyes from us . we will at last make our last stand in Biblaridion's theoretical palnet and start the great comeback

[@blarg2429]

くコ:彡

[@Crispy656forever]

I still need to know if you can have a different type of liquid in the planet

[@blarg2429]

@@davidegaruti2582 Seeing this with fresh eyes, I feel like the "great comeback" should be less an invertebrate renaissance and more along the lines of "no u." Discuss.

[@juanpabloruiz3777]

@@Crispy656forever Why shouldn't it? Titan has an analog of the water cycle but with methane instead.

[@Artifexian]

Dammit! Didn't get first. XD

[@retvolution]

Artifexian A R T I F E X I A N

[@diamonds5554]

ripperoni

[@seanezeh2290]

Aye, my second favourate youtuber

[@historynerd176]

Hehe

[@aeyempire]

You are my fav youtuber and this channel is my second fav... This is heaven? I mean this is the second time!

[@Jamex07]

I have a fictional alien world that I've been developing since I was a kid. Its called Ami, which means sky and sand. Its a planet without tectonic activity and it slowly losing its water into space. There are no open bodies of water but there's a saline water table that all life evolved in, and it has a very different ecosystem than the plant/animal ecosystem found on earth. Rather than plant and animal, the main kingdoms are divided between ecto and endoparasites. Basically millions of years ago there were surface bodies of water, but when the oceans dried up, microorganisms migrated underground. Multicellular life evolved when the saline water table was exposed to sunlight as a result of meteor impact sites. The entire planet is covered in a bright yellow desert, and is pocked with tiny black pockets of vegetation where former impact sites occured. But ecologically its extremely diverse as each black pocket represents an isolated genomic island. This planet has no ozone layer and its atmosphere is made up of a large component of sulfur dioxide. The sky has a light brown haze along the horizon and a navy blue color when you look straight up, sometimes called the navy blue eye. The surface is bombarded with infrared and ultra violet radiation, and most complex life lives safely within these little pockets, and protected from the ambient radiation of the desert. Instead of photosynthesis however, plant like organisms, and many desert animals, rely on a process called chemosynthesis. They absorb light from a very broad range of the optical spectrum, from infrared to ultra violet. Hence the black color. The trees look like tall tendrils, and have a waxy, fatty texture. They pump up water and minerals from the water table, and most animal life evolved from ectoparasites that formerly lived in this vascular system. The sentient life on the planet, the Mei, once relied on chelation from these downed tendrils in order to mine for metals early in their history, since there's very little exposed rock on their planet.

[@colonelcorn9500]

Pog

[@omarfejzic2981]

wow do you have this documented anywhere publicly? it sounds amazing

[@tzshchsjsjxijyo]

holy hell thats amazing

[@Jamex07]

@@omarfejzic2981 I don't have it documented anywhere. Its just one of my own personal worlds. Oh, and there's a lot more. The major kingdoms of life on this planet are divided between endoparasites and ectoparasites, and primarily reside in a subterrestrial crystalline salt water table. Certain ecto parasites use salt similarly to how we life on earth uses calcium, forming a vest biosphere of underground tunnels that help to retain the planet's water and support countless, although mostly single celled biological systems. Early in the planets history it was covered in surface water, but due to radiation from the planet's sun it is slowly losing its hydrogen to space. Those tree like tendrils actually connect to this network, and the many spotted forests that dot the planet's surface are all former impact sites that exposed the underlying water table. These trees bring up water from deep underground and in return support the many endo and ectoparasites that live off them. Most of the life that resembles animals evolved from mushroom like ectoparasites that grow on the surfaces of these trees. And many depend on varying degrees of protection from radiation from the trees. Which plays a role in diversifying various ecological niches. And because of the separation between these tiny, dense forests, each one is basically an isolated biosphere with unique ectoparasite plant and animal like life. On top of high background levels of ultra violet, infrared and even microwave radiation, the planet also has an oxygen nitrogen and sulfur dioxide atmosphere, and is relatively metal poor. The large amount of sulfur exposed on the planet's surface give its deserts a vibrant yellow color. The horizon is a light brownish color that somewhat acts as a gain medium and catches the sun's light, while the high point in the sky is a dark navy blue through which stars can still be seen during the day.

[@ligma6992]

@@Jamex07 start documenting all of this! very interesting...

[@garymeaney60]

Yay, biology, my favourite part of worldbuilding. A couple of questions, though; 1. If you're trying to emulate a protobiotic Earth, wouldn't the oxygen levels be perfectly fine as they'll increase with the advent of photosynthesizing organisms? Even then, oxygen was at 11% in the Triassic and the fauna was perfectly normal - there were even giant insects (titanopterans), things which people usually think require way more oxygen than current levels. 2. Isn't the timescale a bit small for that continental drift animation? 200 million years after the dawn of life there was still only bacteria, not even any eukaryotes. 2 billion I could believe, but 200 million years of evolution is tiny from a microbial perspective.

[@Biblaridion]

1. Yes, this will be addressed in the next part. As life proliferates it's going to have a big impact on the atmosphere. 2. The 200 million years that the animation shows covers the time following this world's equivalent of the Cambrian explosion, since the shape of the continents before that point is basically negligible. Again, this will be addressed in future videos.

[@garymeaney60]

@@Biblaridion Okay, thanks for clearing that up. Looking forward to the rest of the series.

[@jeremias-serus]

@@garymeaney60 its out

[@KateeAngel]

Life can evolve from the beginning only in an atmosphere without any oxygen! Oxygen would oxidize all organic chemicals before they could form a protocell. Only 2.5 billion years ago on Earth life started to produce oxygen as a by-product, which was at that time a poison. And that happened due to evolution of oxygenic photosynthesis, which was itself very unique event, that would not happen every time life arises

[@roojackaroo8517]

Buddy, you want an atmosphere with as little oxygen as possible when life on your planet is just beginning, oxygen was extremely toxic to majority of organisms and photoautotrophs nearly wiped out all life when they came to be

[@gnochhuos645]

Starting my last rewatch right now (after 3 or more rewatches during all those years). Thank you for the great series!

[@Cowdragon01]

I like how the super continent breaks up and rejoins, itll make for a very interesting evolutionary armsrace once they rejoin as im assuming all the creatures on each continent will be very different

[@fannyliem3536]

U should be happy because you are right, check out part 10 & 11

[@danielmork1989]

...yes, that has/ is happening later down the line, (series). ◇(Feb).2-20th-2022, Sun.

[@DefenderofFuture]

Wow I'm realizing I've been watching this series for nearly 2 years, and it feels like it just started.

[@cyclojunctureomnibus946]

Oh god...

[@Sivanot]

I lost track of this series along the way, so happy ocome back and start over now that its done!

[@SomeKindaSpy]

You're about to embark on a journey, friend. Enjoy.

[@cyphermage6112]

Biblaridion and Artifexian - best world-building tag-team ever. I was so buzzed to see this appear this morning. Really looking forward to more!

[@takenname8053]

Oh boy! Time to rewatch the whole series while waiting for the next episode!

[@NathanTAK]

Messing with the atmosphere can be messy. Citation: we’ve been doing it for about a century and I’m sweating my ass off in goddamn Alaska

[@shadowicytheghost5363]

That was 6 months ago, fellow Alaskan. I'm freezing my butt off at -10 right now.

[@juanordonezgalban2278]

Lmao

[@marthachampagne316]

hey remember those ocean current things? yeah... they rotate counter clockwise heading up from the equator on the east side of the ocean, meaning the west coast gets warm water. a nice temperature fluctuation mitigation thingy. try heading a few thousand miles inland and see if you sing the same tune. most people in Alaska live on the southern coastal region for a good reason... ;P

[@justtime6736]

Still colder than the '30s. And 10k years ago. That pesky Otzi climbing glacial free Alps...

[@Naizhenghad]

South carolinian here, first time?

[@dewshi5762]

i'm EARLY? oh, i'll be hounding this series and the comments, too. i've been working on an alien biosphere for well over half a year now and this is the perfect opportunity to learn more.

[@cayzap4828]

The comments:**smart people noises** Me:pretending to know the words that there saying

[@samtier8992]

Oh, I am so pumped for this! I find speculative biology so fascinating and can't wait to see what this channel brings. Subscribed!

[@arko09]

KZbin put this on when I just let it run. Awesome series! These rules become practical when explained with the example you set up. Great work!

[@tofupowda]

super late to this series but god, is this good stuff. i love speculative science/fiction and this scratches that itch so much. i appreciate how much you guys respect the laws of physics/the universe and take them into account. seriously, how many speculative videos actually do the math needed for their worlds to even be plausible?

[@admiralfluffy42]

So started one of the greatest KZbin series of all time

[@Salsmachev]

Wow it's nice to see all of the work Artifexian has done distilled into less than 10 minutes! Although the original guides are great, it was sometimes hard to see it in the context of "where all this is going".

[@joubbou]

small issue: given that the star will increase in luminosity over time, wouldn't a planet placed so close to the inner edge of the goldilocks zone soon end up outside? it seems to me that you've placed a ticking time-bomb for life on your conplanet, as its oceans would boil over relatively soon after they form.

[@Dhjaru]

Eventually yes, but it remember that these are billions of years and even earth will end up outside sometime.

[@joubbou]

Dhjaru thanks for the reply. I'm aware Earth's oceans are predicted to have boiled away in about a billion years from now, but the earth itself would be almost 6 billion years old at that time, and life on earth took roughly 3-4 billion years after it first appeared to get where it is today. my issue is that a planet that is so near the inside of its habitable zone should move out much sooner, so life on the biblaridion planet might not have the 2-3 billion years that life on earth needed to form complex multicellular life. I haven't run the maths on this (honestly, i dont know how), so i cant say anything for sure. really, since its just an imagined planet, it doesnt really matter, but the numbers in the video looked wrong and it bugged me. thanks again

[@GuiSmith]

Beanis A slightly smaller star in the depths of its main sequence period wouldn’t move its Goldilocks zone much over the course of a few billion years, so this imagined world will have an apocalypse around the equivalent of half a billion years ago for Earth’s history. That’s not a lot of time to evolve life, but it is quite a story about a planet which has tons of megafauna and abundant microbial food. It would be an excellent planet-of-the-week sci-fi setting.

[@diamonds5554]

Same with earth too as it lies near the inside of our habitable zone, but the effect would only really take effect after 5 or so billion years.

[@floracanou7613]

Meanwhile the star loses weight, so the planet will get farther

[@Misto_deVito6009]

Feels good coming back to the beginning

[@wasserruebenvergilbungsvirus]

I love biology and worldbuilding, please do more of these!

[@Mark-Wilson]

Man this is what introduced me to specevo. So much nostalgia.

[@albinocyclopse9952]

Rewatching in preparation for the release of part 15!

[@Aethuviel]

Godsdamn I want to watch part 15 but I'll have to rewatch all of it first. Strange to see how part 15 has 70k views in one day, but this part 1 has only 677k views in 4 years.

[@orionarts8478]

This is a badass series so far. Thanks for the hard work. Im sure many people are really grateful for the efforts you have made.

[@Varlshunger]

This is an extremely awesome and incredible series, I love it, please continue!

[@MrBlack0950]

Ive already waited a full year for these videos, it always makes my day when i see an update on the biosphere. Im willing to wait another year or more collectively on this series.

[@stevenkoenig7356]

Just rewatching the best speculative evolution series on KZbin ! Still loving it 👍🏻

[@dangerous_safety]

Hotter planet with hydrogen sulfide? Sounds like the perfect recipe for non trivial amounts of sulfuric acid to form in the oceans. I love it.

[@firebirdfiction7590]

Sulphuric Acid seas are love (I adore using alternative thalassogens in my own world building)

[@armchairrocketscientist4934]

Thank you thank you for making this video. I'm working on a hard sci-fi novel, and this has helped adjust my existing research immensely. I'm working under the issue of what could humans live on comfortably, which complicates things. I'm still searching star catalogs though to find a suitable candidate star within 50 LYs though.

[@user-ft3jq5vi2l]

Hint: Hydrogen sulfide won't help

[@Triliton]

What a TREASURE to find such a KZbin channel! This is perfect!

[@petersmythe6462]

Nononono. I want LARGE tides. Give me a moon that orbits our 22-hour-day planet in 11 hours.

[@rockclanhawkstar1454]

I have a feeling that you would be dealing more with a moon the size of earth but like if it was going the speed of the ISS.

[@PrimetimePaskell]

I am so happy this will exist now

[@Alice-gr1kb]

My dream team! I love both your work! This series is going to be awesome!

[@palatasikuntheyoutubecomme2046]

Emerald!!! Remember me! It’s jan Palatasikun!

[@redhidinghood9337]

Just read the title and OOOOF i know this is gonna be good, even though this is my first time seeing your videos. I wasn't disappointed

[@EvoluteCreator]

I used to spend months at a time doing this with my friend graham (who's basically an autistic savant but slightly less extreme). I've never seen someone mirror that process so similarly

[@Suo_kongque]

Me and my friend Richard both being autistic about ecology:

[@voidify3]

Who’s rewatching this in preparation for the finale?

[@guromenst4416]

Me!

[@Aethuviel]

I was just popping in here for planet-making again, only to see the sapience-part recently uploaded in the sidebar. I don't follow any updates so I didn't know it was due to arrive. :O

[@aeyempire]

MY FAVOURITE 2 KZbinRS! OMG!!

[@Zarsla]

Eeeee...yes. I thought this was an artifexian video and I was like wait...collab. fuuuuuck yes.

[@ordenhartley1309]

Can’t wait for more additions to the world!

[@normalhuman78-53]

Wow, it’s been a whole year. Hope this series keeps going for as long as you can make it!

[@Александар-ш1ж]

Don't stop this series!! Please i love it

[@mirmirma5824]

I don’t know how KZbin knew to recommend this to me. I don’t think it would even know that I was working on world building a sci-fi story even if it was spying on me. Sheer luck brought this video to me, and I’m excite to see someone discuss the topics I’ve been thinking about for the past few days!

[@Dragrath1]

To be fair ancient Earth did have Water vapor, Hydrogen sulfide, Methane, Carbon Dioxide, Nitrogen(less than modern Earth) and very importantly absolutely no molecular Oxygen... yet. Curious how the presence of oxygen so early would effect life since most organic molecules are unstable under oxygen at the very least a planet that starts with any molecular oxygen in its atmosphere would be very different from Earth. Now this could be a tangent but since my atmospheric physics class where I did a term paper on the subject I have taken a keen interest in the peculiar Snowball Earth episodes around 2 billion years ago and the Cryogenian 720 to 635 million years ago. These are both the most extreme glaciation events ever documented on Earth but also critical periods in the development of complex life as the only evidence of multicellular oxygen based life in the fossil record directly proceeds these glacial episodes and genetic clock dating suggests that all extant multicellular life emerged during the Cryogenian. The recent discovery of the Francevillian biota and other ancient Paleoproterozoic macrofossils concurrent with the Lomagundi oxygenation event furthermore establishes an early, but unfortunately failed, emergence of complex life during The first snowball Earth associated with the great oxygenation and subsequent snowball Earth events. These organisms disappeared when molecular oxygen largely vanished from Earth for over a billion years, however their existence directly concurrent with both snowball glaciations strongly links these events. Current research based largely off the neoprotozoic glaciations and subsequent biological radiations suggests that multicellularity may have been driven by hyperoxic conditions within equatorial meltwater pools and fissures within the global ice sheets where eukaryotic organisms sought refuge sustained by minerals delivered both by sublimating and melting ice. Snowball Ice sheets form near the poles and flow to the equator where glacial erosion provided minerals as water either sublimates into the atmosphere to be carried to the poles, notably while also leading to a darkening of ice, where it will eventually precipitate as snow, or it melts into the meltwater pools where life would have survived. These snowball events were associated directly with the break up of super continents along the equator so perhaps you can incorporate this into your early break up of the super continent? The TDLR is a temporary global freeze over might be essential for the formation of multicellular oxygen based life. Well good start otherwise! :)

[@makinishikino7410]

Oxygen was toxic to the first lifeforms on earth.

[@CATASTEROID934]

Frankly the oxygen would be consumed over time through oxidation of minerals and such, it might be hard to handle the concept given that we're so deeply reliant on it but having 20% angry oxidising gas in the atmosphere is highly unusual simply because such a reactive substance wouldn't exist in that form for very long at all and it's presence around earth is only maintained by living organisms constantly producing it

[@aoeu256]

Also early life used Formamide as a solvent rather than water. Its properties are similar to water but not identical, it was used because early on it was too hot for water to be used. Formamide is made from Water, Hydrogen Cyanide, NH3 (Ammonia), CH4(Methane). Some life could have lived in pools of sulfuric acid (as many archea do today).

[@Dragrath1]

@@aoeu256 You have sources on that? extraordinary claims require extraordinary evidence

[@aoeu256]

Dragrath1 search for formamide life

[@albinocyclopse9952]

I come back and binge this series every couple of months and lemme tell ya, it never gets old.

[@jamesgeorge7579]

Just found this channel and Artifexian's today, right when I'm in the middle of a worldbuilding spree, oh boy!

[@user-rz7vh2cp2c]

This is the best series I've seen on KZbin so far I hope you keep making videos.

[@astralwither8402]

wish i had discoverede this channel earlier. thanks artefexian!!!

[@landersiqueiros6538]

Biblaridion: I brought Artifexian to help Artifexian: ʰᵉˡˡᵒ

[@potentpotassium5776]

Biblaridion: Let's not get crazy... yet. *Foreshadowing*

[@thesleepydot]

This is EXACTLY what I needed. I’m trying ti figure out how I want my planet and world to be like in my fantasy story but also keep it as scientifically accurate as I can. I’m not told I’m a nerd for nothing.

[@Lumberjack_king]

That's cool

[@MrPuncher]

Man 4 years... I remember seeing this in 2020

[@ChillingLen]

I was looking hard for this kind of video! I'm very excited to accompany it!

[@s-o-tariknomad6970]

Who's here after watching Part 15? Hard to believe its been nearly 5 years.

[@recless8667]

I'm here from Artifexian. I love his world building (tried to learn his methods on my own 6 or 7 years back but burned out). One of his vids plugs your channel for alien life, so I'm here out of curiosity :)

[@seanpanick6555]

You guys make a great team. But honestly, I prefer your linguistics videos. Specifically, the conlang showcase videos. I’ve been conlanging for years and am even a trained linguist (MA) and I love your conlangs. You present the necessary information for conlanging very clearly. Please more showcases!

[@petersantos6395]

Where do all the components in the atmosphere come from? What about the internal of the planet? What about the ocean? They have the equal level of influence on life if not more. Also, if your moon is captured by the planet it's hard to explain the orbit given its size, it would gradually tear itself apart or escape

[@KerbalFacile]

Given its large size and close orbit, it was most certainly created in a large collision, just like how Theia hit the early Earth to form the moon, leaving Earth with an abnormally large iron core in the process.

[@marthachampagne316]

@@KerbalFacile that could be why it has such low gravity, all the heavy core materials were ejected to form the moon and only the crust and mantle were used to form the actual planet.

[@Orthosaur7532]

So this... This is where it all began.

[@jackbaxter4924]

My only concern with this series is that I discovered it with only two episodes out.. Very keen for more! Also: this would be a pretty useful aid to evolutionary biology degrees

[@NothingHere9911-blank]

time for my annual episode rewatch of this series

[@lorenzo8495]

Gosh, I love this! Thank you KZbin for the recommendation!

[@robomermaid9914]

i love this vid cause its like a tutorial by two gods on how to make a planet

[@Piku155]

Any videos similar to these on KZbin. I love this so much and I just want to watch more

[@TheAcdcninja]

It occurred to me the other day that a feature to take note of on hypothetical planets is the relationship between density of the atmosphere and the strength of gravity because this essentially creates a “how viable is flight?” quotient. A planet with a fairly dense atmosphere and low gravity could see a mostly airborne biosphere, while high gravity and lower atmospheric density would see flight as a pretty rare and unwieldy adaptation. And once you get to having some sort of civilisation, how easy or hard it is to fly comes around again as another interesting way in which the planet will affect the civilisation.

[@Mr.Nichan]

Also wind?

[@johnderat2652]

Finally a theory about what I've been obsessing about for years now.

[@levanera]

Rewatching in preparation for the end of the Alien Biospheres Era

[@johnmcbrosel4840]

I sure dont know how on gods green earth I got here, but this is one of the most enjoyable things I ever saw one youtube.

[@user-ed8ce8bg4e]

He did it boys

[@Raurie4]

well crap, wish i had this fellow helping when I was creating my game world. I don't think i got the planets size but I have a feeling my day length and tilt would make my planet much more different in weather than planned. Now i can!

[@Demonslayer-64]

Aliens finding this video: "HOW DID THEY KNOW?!"

[@puggumpus]

READY THE DEATH-RAY

[@ComteGuillaumeVonK]

If I had a cent for every time I start this serie all over again, I'll had 4 cents. If I had a cent for every specific episode I liked, it might be one fucton of a lot.

[@lugeushqimi9135]

Now thinking more about the planet that he created, it looks like the planet where Nekāchti is spoken

[@janKiwen]

Oh,we've never seen the entire planet,it could be,will be coooool

[@Alice-gr1kb]

That would be super cool

[@MoMo-sf8vk]

what's the langus i think ārchācici

[@SomeKindaSpy]

Nope! *That* is the Refugium, for future readers of this comment.

[@dougthedonkey1805]

The refugium has magic stars

[@leventetombacz6083]

A birth of one of the most liked alien series

[@MKSchmidt30]

Love this stuff! I have been reading "Extraterrestrial Civilizations" by Isaac Asimov and he covers some of the same ideas. I look forward to the rest of the series!

[@reneabullock1899]

Wow! I tried to write something similar when I was in highschool, very excited to binge this series.

[@G_4J]

Who else thought this was an Artifexian video?

[@Dominik-lc4pl]

I

[@Shrooblord]

Nah. It didn't start with "Good morning, Interweb! Let's worldbuild."

[@zanly5039]

oh hi there

[@garymeaney60]

Well, it effectively was to be honest.

[@orionthewildhunt9173]

me

[@vde1846]

Rewatching all these. Such an amazing project :)

[@a_ghost5950]

Could you make a video talking about if life could develop twice at the same time on one planet given that the planets continents were always separated? The variation (if a cousin ancestor that was unsuccessful on one of the continents was successful on the other becoming the unified ancestor for one continent but not the other) What would happen if they met? How alien would they really be to each other? Intelligence arising twice

[@diamonds5554]

Thing to consider is that life will, in the vast majority of scenarios, originate from the oceans. Also, it's practically impossible to have two continents permenantly separated as far as I am aware thanks to techtonic activity, but if your planets techtonic activity stops soon after animals move onto land it *might* be possible, also that also means that volcanoes, mountains, earthquakes and hydrothermal vents (which is where life is theorised to have actually started from which is why there has to be techtonic activity to start with) will no longer be actve/form. Mountains and volcanoes will also slowly shrink in the time spam of a few hundred million years as a result.

[@a_ghost5950]

@@diamonds5554 I think it depends on the planetary formation as to whether all the land masses have to be connected. I see what you're saying how they could eventually need to meet. I'll have to do some research into that part

[@tristanmisja]

It's cool rewatching this series every once in a while

[@novaraptorus]

Please Include Speculative Evolution its my FAVORITE part of world building!

[@NewgirlNola]

Holy crap this went way further than I ever thought it would. It’s fukin amazing.

[@FandomChronicle]

Now this is what you call World Building

[@TheLeontheking]

Planning to create a game that features procedurally generated worlds, so this series comes in very handy! :)

[@hxqv1028]

Wouldn’t hydrogen sulfide combust in an oxygen atmosphere to form sulfur dioxide via the equation: H2S + O2 > H2O + SO2

[@Dominik-lc4pl]

H2O + SO2 -> H2SO3 = acid rain

[@jensbrandt7207]

@Pecu Alex Methane does not survive, it gets replenished constantly.

[@AravindKarthigeyan]

hxqv10 I assume that organisms have a Hydrogen Sulfide cycle.

[@MisterSketch4]

@@Dominik-lc4pl isn't the formula for acid rain/sulfuric acid H2SO4?

[@Dominik-lc4pl]

H2SO3 is acid, H2SO4 is acid too

[@msolec2000]

Oooh, very nice series in the making, I see. :)

[@manwithmanynames9795]

I remember doing this with one of my friends, the intertidal zone was unreasonably large, like well over 80m

[@nidoking1004]

Please keep making more of these videos. Subscribed!

[@junovzla]

JUST WHAT IVE BEEN WAITING, my opportunity to not make humanoid lifeforms

[@Pseudoaquanaut]

“What’s hydrogen sulfide?” *one Wikipedia page later* “A H, E G G S”

[@DevilSpider_]

I had an idea of a re-constructed Pokemon world (different landmasses, different languages, yet all Pokemon)

[@wwiiinplastic4712]

One of my favorite parts of playing the old rpg, Traveller, years ago was building the worlds for my band of space adventurers to explore. The game tried to be as fact-based as possible while trying to extrapolate what the future would look like in 3000 years. I wonder what that game would be like if it was updated with all the knowledge we've gained since the late 70s when it originally released? The section on planetary system creation alone would have to be re-written based on the last ten years of new data.