Moon: Mega City

The Moon may one day be colonized and grow to be covered in domes and bases spanning the entire once-barren surface, a single mega-city sprawling not just over the surface, but deep below too.
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Credits:
Moon: Mega-City
Science & Futurism with Isaac Arthur
Episode 335; March 24, 2022
Produced, Written, and Narrated by Isaac Arthur
Editors:
Jason Burbank
S. Kopperud
David McFarlane
Cover Art:
Jakub Grygier www.artstation...
Graphics:
Ian Long (LITE)
Jeremy Jozwik www.artstation...
Ken York of YD Visual / ydvisual
Kris Holland www.maficstudios.com
Sergio Botero www.artstation...
Tytus Grabowski
Udo Schroeter
Music Courtesy of Epidemic Sound epidemicsound.c...

[@Artak091]

That's why I love this channel. Issac doesn't stop and ask "should we?" He skips right to "could we.."

[@rayn_0ff]

Hmmm that might be what all of us should do

[@miketaylor3559]

Ain't that why the dininos escaped and started eating people tho :)

[@meatmech]

@@statinskill but you don't have an agenda, right?

[@statinskill]

@@meatmech I am not looking to make you homosexual or lure you into some harmful diet, if that is what you are getting at.

[@barryallen2240]

@@statinskill the problem in that argument is that You or I could commit murder, but should we

[@cuddlemuffin.9545]

Can we get a video covering how the colonization of space would play out in the next 150 years? This is a time frame where my son and your son will be alive and well to witness it happening and possibly us eith better technology

[@KRAFTOMEEZY]

See the upwards bound series in his playlist!

[@TheArklyte]

Next 150 years would be spent rebuilding from chaos caused by russian nuclear attacks on all their neighbours. We wouldn't really look up to the skies until 2200-2500's. Sorry, sci-fi and post apocalypse are different genres \/(-_-)\/

[@smileywarhead5178]

Past videos have been very thorough about locations, stationary and mobile structures (ships), and machine evolution. But nailing down near future decisions of humans? Science may not be the biggest wedge of that thought-pie. Don't get me wrong, it's more fun making 50 assumptions that paint a clearer picture. I'm hoping someday for a narrated flowchart of the steps towards a robust civilization in living permanently in space. But it needs to ignore alternate scenarios to stay on track

[@AndrewManook]

@@TheArklyte I'm more worried about american nuclear attacks on the rest of the world honestly, considering where the country is headed.

[@GrandTourVideos]

@@AndrewManook calm down.

[@themcp]

Another masterpiece by the venerable Mr. Arthur. For a man with a claimed speech impediment, you haven't had as much as a single hesitation, pause, ahem or mumble in any of your dictations. I'd challenge anyone to do similar as flawlessly. Truly remarkable contributions to the world's body of knowledge. Keep the good work up, Sir, I hope to hear many more musings from you and your team.

[@ebonaparte3853]

I have a speech impediment. They don’t always involve stuttering over words. They often involve trouble pronouncing words or pronouncing them differently. His accent and the way he pronounces some words seems to suggest that kind of speech impediment.

[@GiordanoBruno42]

"It gets dark for two weeks in a row, then there's two weeks of daylight. Not many people will want to live under those conditions" - So we need to send Finns and Sami to the moon colony? ...Imagining moon reindeer that can jump really high and Finns zooming around in rally cars.

[@NullHand]

The true Santa's Workshop?

[@trentonarney6066]

HAHAHA! That and some of our Alaskan and Innuit friends. The image in my head of a Scandanavian Flick in a moon buggy still has me smiling as I type this.

[@aprilruledearth]

As a finn I approve this message

[@alexanderhoward4200]

You and your wife have inspired so many people to follow there dreams and I respect you both a lot for what you do.

[@metstribelindo_mg7818]

Wait his wife makes videos too , I need link too that's cool

[@alexanderhoward4200]

@@metstribelindo_mg7818 She’s the person asking everyone’s questions during the live streams, but that’s only one of the reasons she is inspiring. She has a very successful career and is a good roll model for young women.

[@alexanderhoward4200]

@pyropulse she’s an Ohio state representative… I hope eventually you can process the hurt you feel. It’s not fun to be used in a relationship and I get the sense you feel like you were. It’s not appropriate behavior to scream into the comment section though.

[@plumetheum7017]

@pyropulse Take it easy on the Inceldom. Maybe if you washed your ass regularly, you'd have a wife like Issac.

[@Spartan265]

@pyropulse You need to go touch grass. You've been inside mommy's basement too long. Go live a little.

[@thinktankdetective8307]

I think one of the reasons why people really like talking about the moon is because it feels like a goal we can accomplish within our lifetime. Not a moon city but Definitely some sort permanent moon colony could be possible within the next 50-100 years.

[@kakerake6018]

We could definitely have a moon city in 50 years easy. That is if there was enough will

[@jaylewis9876]

If a colony requires kids born there it may never happen if gravity is too low for mammals. Of it only means constant occupation then we can get there within a decade.

[@garethbaus5471]

@@jaylewis9876 we can use spin gravity to simulate Earth's gravity if it was necessary for reproduction.

[@joshindermuehle1579]

@@garethbaus5471 You just live in a huge, spinning maternity city for 2 years. Or possibly a cislunar or lagrange transfer station.

[@cypercharged]

Anton is really a wonderful person. Lot of thoughts for him and his family 🌙🌠

[@Zetalpa187]

Great episode, Cool Worlds and Anton are both great channels as well was nice to see the shout-out. Was near heartbroken when I heard of Anton's loss, especially in light of the war situation. Can't imagine the difficulty he must be going thru. What I do know is, Anton is very much "a wonderful person" and it legit hurts to see such a wonderful person deal with such terrible things.

[@Zetalpa187]

sorry for the language big homie, my 11 bravo shows sometimes lol

[@kaminachos5129]

@@Zetalpa187 I almost want to know what they said, but the content of your reply makes me think it's not something that we need to have preserved or repeated.

[@Zetalpa187]

@@kaminachos5129 well, having them removed certainly does leave some questions I bet lol I'll describe this way: it was just some asshole making a completely unrelated vitriolic political statement. Which normally, whatever that's old hat for comment sections. But I'll be damned if I'm going to let someone use my comment regarding Anton's loss to make any such statements. I don't care if what was said is even true or not, I ain't the one letting that slide. And it's probably for the best Isaac or whoever got rid of those comments and hopefully banned them or something, because if they had replied back I'd have redefined the words "brute force" for Isaac lol

[@kaminachos5129]

@@Zetalpa187 totally agree. No matter what the reason it is despicable to use someones loss to springboard your agenda.

[@Zetalpa187]

@@kaminachos5129 it's shameful at best. Once upon a time things like that were the exception, but are now commonplace. SFIA has always given some hope that humanity could have an amazing future, then some shit bag like that comes along and reminds me we're stuck with these people likely forever.

[@DFX2KX]

I remember hearing the news about Anton's son and mentioning it in the Discord (someone right after me actually dropped the link, wasn't sure it was my place personally). But the reaction of the community to that news, and the outpouring of support that was given, tell me this is one of the best communities on KZbin.

[@cb-7422]

Can we have an episode dedicated solely to Multiverse colonisation? That would be amazing and crazy to comprehend.. Isaac, your channel is very inspiring!

[@edthoreum7625]

A total escape from recession, inflation, taxes, wars, left, right, center ,,, Thank you sir isaac!

[@nominus1138]

Guys, we aren't going to colonize the multiverse.... We are but humans and only limited ability to travel. We aren't even going to be able to move beyond this galaxy, best case scenario

[@mattstorm360]

@@edthoreum7625 A portal opens up and a man with a brief case steps out. "Time? Is it really that time again? It seems as if, you only just paid your taxes..."

[@finny9125]

@@nominus1138 neither of us have any idea of what will be possible in the far future, so saying that we will never be able to go any further than our own galaxy is just as bad as saying we will definitely colonize many many different universes in the multiverses

[@nominus1138]

@@finny9125 the amount of energy it would take to be able to move to the farthest reaches of the observable universe is massive, so massive that there's not enough available mass and energy to satisfy it. Multiverse? Talk to be once we determine if we can successfully colonize the moon or Mars. Ganymede. Titan. We will be lucky to colonize another body in our own solar system. Astronomically Lucky to be able to colonize outside our solar system. Not totally impossible, but pretty close to that. The energy required to move those distances in a short timespan does not exist in our grasp.

[@thinktankdetective8307]

Arthur is the kinda of guy who make you feel confident about anything even you don’t the project could be successful.

[@altha2008]

Not as if people going to walk outside they can make the interior to copy the day time and night rime

[@cyruspowers7355]

I absolutely cannot get enough of these solar system colonization/development videos. It makes me so excited to think what our species will look like in a few hundred years (assuming it's not extinct).

[@virutech32]

@orkhaa stop spamming the comments you troll

[@Tounushi]

When it comes to sci-fi building, pretty much every work has an outpost or colony be built out of steel and the interiors are essentially all metal, like they're built with cargo ship construction techniques. No concrete, tilework, linoleum, wood paneling or the sort, just bare metal or some fabric padding and if you're really going for luxury, carpeted floors. Soviet nuclear subs are more luxurious in comparison. I'm pretty sure a future moon colony would use locally sourced "concrete" or sintered 3D-printed regolith materials for bulk construction, metals for reinforcement and polymers for ergonomics.

[@egoalter1276]

Concrete is alredy "3d prinred" in its original ancient form. Well, cast, but whatever, has the same flexibility and is vastly more efficient than a layer by layer printerhead technique. The real question is how do we omit the need for lime, and create a concrete mixture thats sourced locally on the moon, and doesnt need an atmosphear with CO2 in it to set.

[@curtishawkins8052]

From modest beginnings out of your own home in Ohio, I have been with you for years, you have built, I believe one of the most significant series on the future of humankind. There is nothing else like it anywhere. You have a completely unique product. I think this is the one series I could not do without. Thank you Isaac for sharing your visions with us.

[@herbiehusker1889]

Living in a planet wide city sounds like a special kind of Hell.

[@marrqi7wini54]

Well what are you going to do with a bunch airless rock? It's either endless city or endless plain of colorless landscape.

[@captain_buggles]

If you had enough time, infrastructure, and sociopolitical stability to get it that way, I feel like it's extremely unlikely that there won't also be robust infrastructure to safely and affordably move out and go somewhere less crowded.

[@UrdnotChuckles]

I recently saw an idea involving building a belt of solar panels all the way around the moon at the equator, and building further north / south from there as desired. As half the moon is always in sunlight, you'd have a TON of power at your disposal. Perfect for subsurface habitats, heavy industry, or even exporting power via laser. Just some quick and dirty math showed you could probably get petawatts of production doing something like that assuming 30% efficiency panels.

[@algorithmgeneratedanimegir1286]

But how much could we get allocating those resources to something else? Peta watts of production sound all nice on paper, but in the realm of reality the investment would be an unimaginable fortune.

[@dwavenminer]

15:07 seems Issac forgot, while the moon doesn't have Earthquakes, it does have Moonquakes, granted not due to tectonic plates like Earth, but instead because of the contractions and relaxing of different parts of the Moon as it orbits the Earth. And before you ask; why doesn't the same happen to the Earth, simple: we have lots of water that takes the brunt of it and so we instead have the tides...

[@atk05003]

I suspect we still have contractions and expansions of rock and magma on Earth due to tidal forces, but I would guess those effects are just much less noticeable due to the lower mass of the moon (compared to Earth) and all of the other tectonic activity.

[@spectre111]

@@atk05003 I'm not a scientist but I would guess that Earth's would be from orbiting the Sun and so are on a yearly cycle while the Moon's would be on a monthly cycle, from orbiting the Earth.

[@atk05003]

@@spectre111 The tidal expansion and contraction rhythm is due to the Earth's rotation. That's why the high tide/low tide cycle happens almost twice a day. (It's slightly less than twice a day because the Moon orbits around the Earth in the same direction as the Earth's spin.) Based on what little I know about ocean tides and how gravity works, I suspect the tidal effects from the Moon are more significant than those from the Sun, because the Moon is much closer. That means the gravitational influence of the Moon drops off more (as a percentage) across the Earth's diameter than the Sun's influence drops off.

[@somesortofdeliciousbiscuit3704]

There is supposed to be a correlation between earthquake frequency and the phase of the moon in that there are more earthquakes when there is a full moon though,

[@atk05003]

@@somesortofdeliciousbiscuit3704 I've never heard about the earthquake correlation. I know that tides are more extreme during full moon and new moon, because the tidal forces from the Sun and Moon add up when they are in a line with the Earth.

[@var7071]

This chanel is underrated

[@jerkfudgewater147]

I enjoy it BUT: his myopic belief that everything will just get better and better as the same people that ruined this world and run Amazon distribution centers with employees pissing in bottles makes it all just a bit too “won’t it be great” as we march towards a reality that looks like the original Total Recall; paying for everything, even the air your kids breath and any attempt at revolution results in the rich venting all of your air into somewhere that isn’t on strike. He misses all of the actual drawbacks and subsequently sounds well educated but poorly informed.

[@TheArtofFugue]

underrated is an understatement.

[@bradfordhatch5085]

The idea of splitting up the moon to create a trillion interstellar spaceships put the theme for Space: 1999 into my head. 😁

[@michaelmcchesney6645]

One future "industry" on the Moon I rarely hear mentioned os retirement communities. While we know that living in microgravity is harmful to human health, we really don't know the effects of low gravity such as the 1/6th G on the Moon. In my favorite novel, The Moon is a Harsh Mistress, Robert Heinlein posited that after a certain amount of time on the Moon people couldn't return to living on Earth. While it is likely humans would find it difficult to return to 1 G, that wouldn't be a problem for a person intending to remain on the moon. Elderly people with various ailments that require canes, walkers, and wheelchairs might find it possible to live much more comfortable active lives weighing only 1/6th of what they weigh on Earth. Like everything else connected to the private space industries, the wealthy will be the first to take advantage. A home on the Moon will certainly cost more than a home in the Villages. But like everything else the costs will come down over time. Of course, the stress of getting to the Moon might be hard on the elderly, at least so long as it requires a rocket launch. But once the get a space elevator built to get people to geostationary orbit, the Moon will become the new Florida.

[@trentonarney6066]

That is something to think about.

[@Deathnotefan97]

Reminds me of a story called Deathworlders Humanity colonizes a planet with about 70ish percent Earth’s surface gravity, and while the major cities have large municipal artificial gravity generators to maintain Earth standard, the outskirts and rural areas don’t, and most of that is stated to be retirement communities, because the lower gravity makes things like aching bones and arthritis more manageable

[@space__idklmao]

This concept is explored in 3001 by Clarke

[@virutech32]

By the time we build a space elevator(the least efficient lowest throughput launch megastructure) it's doubtful we'd have any old people or at the very least visibly & biologically/medically infirm people. also on earth a launch loop is way easier to build, probably way nearer term, & just all around better in every way

[@myalt3019]

Space elevators are extremely unpractical. A rotovator would be better.

[@theManuScript]

Honestly the coolest channel on KZbin

[@afriendofafriend5766]

I'm attempting (and failing, but that's ok) to write a book about life on a galactic shell world as you mentioned in your video about shell worlds because of you. Thanks for your contribution to my imagination.

[@mjk9388]

Loved the show and loved the message of optimism at the end.

[@mennnzz]

Our lunar colony will have a Disneyland that contains giant swings, trampolines and human rocket launchers. 🌚

[@SuperExodian]

i like imagining we'll eventually somewhat decolonize the earth and move a large amount of people to the moon and other habs. then use the earth as a massive farm/zoo

[@nikkity5491]

And we will make O'Neill cylinders. and have giant suits with guns and laser swords! Australia will have a new ocea-

[@Pystro]

@@nikkity5491 Who says that the zoos will house animals? At that point in time it might as well be all obsolete versions of genetically enhanced humans and non-cyborgs.

[@jaylewis9876]

And history preserves and deextinction zones so its billions of tourists and rangers

[@NarwahlGaming]

I would argue the world is already a zoo. Somehow, we skipped a few steps. 🤔😂

[@dm121984]

The biggest real unknown is how tolerant the human body (especially developing embryos) is to long term low gravity; we know microgravity is bad, and full earth gravity is good, but we don't really know much beyond that; is 1/100th of a G enough? Or does it need to be at least 0.99g to avoid problems? This will affect how big a problem it is to make habitants for long term human colonisation; if we are fine with no additional gravity, long term operation on the moon is much easier. If we need extra gravity to avoid health/reproductive problems, it means rotating habitants on the moon, which is doable but a higher barrier to startup.

[@Ching2x770]

Spin gravity is the solution, just create 1 g or similar gravity to earth through spin gravity like o'niel cylinder.

[@NullHand]

We have spent decades in several different space stations doing biology and medical experiments studying how badly zero g screws with Earth biology. Maybe next space station we could get some spin to start investigating the low gravity range?

[@jaylewis9876]

@@Ching2x770 one idea along those lines is to have babies conceived, born and raised in orbit. Then come down when its safe, possibly very young, possibly as an adult. We don’t know

[@jengleheimerschmitt7941]

@@jaylewis9876 we need to teather the ISS to another station full of pregnant pigs and spin them to 1/3 g or something. I'm asking Elon to get on this.

[@SomasAcademy]

Wouldn't increasing the Moon's gravity have some pretty major impacts on Earth? Like, I'd assume the tides would get much more extreme if the Moon had the same gravity as Earth, and I don't know enough to guess about specifics, but I feel like it would also impact our rotation

[@sciencerscientifico310]

Yeah, when contemplating increasing the gravity of the Moon, one has to think about how it would affect the Earth gravitationally. Rather the raising the Moon's gravity across the board, it would make more sense to have rotating 'bowls' to supplement lunar gravity in the habitats. Plus, lower gravity might be better for some people. Not to mention the recreational opportunities afforded by low gravity and the fact that it would be easier to launch rockets from lunar gravity.

[@alunthomas1036]

You'd probably want to move the moon up to a higher orbit to reduce the risk impacts.

[@the_Kutonarch]

He said in the video that if you increase the mass of the moon you need to move it further out from the earth. You won't have tidal problems if it's further away.

[@garethbaus5471]

Adding enough mass to significantly increase the moon's gravity isn't very practical simply because it would be prohibitively expensive.

[@georgemitchell2288]

@@garethbaus5471 what is expense when taken into account a post scarcity civilization?

[@tscomponents33]

Can we all give huge appreciation to the creator for not spamming these videos with ads??

[@GhostofReason]

I love the channel and I think that if more people watched it it would inspire them toward a better future! I thought the JAXA conference was great too

[@isaacarthurSFIA]

Thanks Ryan!

[@vlnow]

Its just crazy how much quality content this channel has put out over the years.

[@Ching2x770]

Looking forward in April, the themes are quite intriguing.

[@drunkbeaverproductions]

also... thank you for mentioning Anton Petrov... its good to know that the community of creators are backing him as well as his own fans do....

[@shubhamkumar6689]

I'm a subscriber of Anton, Cool worlds, John Michael godier, Curious droid and You. All of you are just great.

[@bbirda1287]

I finally understand Coruscant from Star Wars. I had a hard time picturing piling up buildings all over the world, and where you would get the extra material from. You just hollow it out! Brilliant!

[@v.k.8153]

"Artificially lit" will be the Lunar Tourism Board's slogan.

[@virutech32]

🤣🤣🤣that's amazing

[@Tahllia]

@28:55 -ish you apologize for including too much math. But like, I would LOVE more videos, everyone once in a while, that cover more of the math involved. It was one of the things I enjoyed about your earlier content (after I found you and went through the back catalogue)

[@mattstorm360]

Dome living. The way i see it you would have layers like stated. If i would build one, i would start with two layers in the dome. The external and internal dome to allow for redundancy, reduced stress, and to alert for a breach. The atmosphere between the two domes would be somewhere between vacuum and the pressure of the internal dome. That way if there is a breach, external or internal, it would be easier to detect. The structures inside, such as buildings, will be capable of becoming air tight. Their would be underground tunnels that are also act as an emergency shelter and unseen cargo movement. I'm sure Isaac Arthur talked about this and that's where these 'ideas' are from.

[@NullHand]

A big enough dome will lose pressure extremely slowly. At least to bolides that are small enough not to have a kiloton class cratering energy anyway. I think the leak detection would be done best with external infrared cameras. Leaks should appear as plumes of warm gas jetting off the surface like a tea kettle.

[@scottrotherham]

Thanks Isaac I love the heartfelt message at the end

[@AllDayBikes]

I listened to you originally as video game research, and now I do just because it's calming background ambience, akin to David Attenborough.

[@Remembrance1776]

I understand the obsession with Mars (somewhat) but I feel like we should focus on orbital infrastructure, trans-lunar space and of course, the moon. Once we have a good starting point in space that’s close to home, then we can spread throughout the solar system in mass.

[@blindfaith8777]

I use to have the same opinion. I would really recommend the book “The Case for Mars”. It is very persuasive.

[@sachafriderich3063]

I agree, what is there so great on mars anyway.

[@virutech32]

yeah mars colonization is dumb & unnecessary. basically a prestige project just because we can. Lunar & orbital infrastructure is the linchpin for all further colonization & makes it all practical

[@Remembrance1776]

I support limited Mars colonization but compared to the solar system, trans-lunar space is our backyard. Trial and error in regards to everything would be easier here then millions of miles away from home. Once we have some practical experience with living in space, then we can expand outwards.

[@jamesmiddleton8128]

I thought it was wild learning that all 7 other planets would just fill the space between earth and the moon... it's bigger and farther than I gave it credit... also using the moon for a sub station to the rest of our solar system is essential imo!

[@peacepoet1947]

But what effects would it have on earth as far as weather here on earth if we increase the mass of the moon?

[@v.prestorpnrcrtlcrt2096]

Wow, Crazy, I just watched a lecture on Cycloids this morning. Thx Issac, made my day:)

[@ancientixl]

Another fine video presentation. I thoroughly enjoy each and every one, not only as a learning experience but as quite entertaining as well. Thank-you!!!

[@ulrichsrensen8520]

Still waiting for programmable matter 😀

[@robertweidner2480]

I remember reading a science fiction story set on the Moon. It was “the opposite” of the Earth. The richest people on Earth who lived in penthouses on tops of skyscrapers, on the Moon, the richest people lived deep underground in penthouses, safely away from radiation above.

[@NullHand]

Reminds me of post 9/11 Manhattan. The rich executives fled the top floors of skycrapers. Ground floor became the hot office space. Guess the secretaries and jr partners got the offices w/view.

[@rishidronadula7260]

Was it Ian MacDonald's New Moon trilogy?

[@lukewinter5153]

“Ayyyy yo new moon lore just dropped”

[@calvingreene90]

You could easily cut the travel time through the gravity tunnels by electromagnetic acceleration and regenerative braking. The efficiency wouldn't be bad either.

[@garethbaus5471]

Especially on the moon where air resistance isn't a major issue.

[@calvingreene90]

@@garethbaus5471 They would be vacuum tubes wherever you build them.

[@richardgreen7225]

The Moon has a surface area comparable to the Americas. So it could comfortably support an equivalent population without ridiculous crowding. The primary constraint would be water ... imported from Europa.

[@ichidome]

that red night dome illustration around 14:27 is so cool looking

[@kaydkaydkayd]

26:06 the mentioning of such speed comparisons so casually always kills me man

[@peacepoet1947]

Question: Would increasing the weight of the moon effect the orbit of the earth and moon and their relationship with the sun. Isn't there a balance of the order of the planets and their moons?

[@paulrhome6164]

There would be affects, but much less than the tidal effects on Earth due to the distance involved. I haven't followed Isaac's advice on Skillshare classes yet, so I can't calculate the effects off hand, but I would think the mass would have to change by orders of magnitude before we would have to worry about nudging things further from the Sun to compensate.

[@peacepoet1947]

@@paulrhome6164 do you believe that by whatever method to increase the amount of gravity on the moon could have an effect on the orbit of the moon around the earth and the earth around the sun. The solar system has a balance and changing gravitational force on any planet or moon would possibly change the orbit of the moon around the earth as well as the tides of the oceans.

[@paulrhome6164]

@@peacepoet1947 He mentioned the tidal effects and the possible need to correct for them. But just as the much larger distance from the Sun makes its gravity much less of a factor in Earth's tides than the moon is, it would take a much larger proportional increase in mass, especially since we're just talking about increasing the Moon, for the Earth/Moon system's orbit around the Sun to be affected to any similar degree.

[@MoCsomeone]

@@peacepoet1947 you would have to adjust the distance from earth the moon is if you wanted to maintain the tidal forces. The impact on the whole solar system would likely be negligible. Think about it, there have been tim a every single planet was lined up in a row and all's still well

[@peacepoet1947]

@@paulrhome6164 I'm just asking what type of obital changes would be happening should we increase the theoretical weight and mass of the moon? I did watch the video. I threw in the tides to add to the possible process what would happen "if"?

[@Drew_McTygue]

We're whalers on the moon, We carry a harpoon, For they ain't no whales So we tell tall tales And sing our whaling tune!

[@ghostpasha9076]

The Mooninites would approve of your many moon-focused episodes

[@theragemachineau3855]

You should be knighted for the energy and attention to detail you put into these series. I’ve learnt so much and have had such a great insight into topics I never knew I’d be fascinated by. Sir Isaac Arthur .. so fitting..

[@GadreelAdvocat]

Once an established city on the moon it would most likely to become a way station to help terraform other planets first. A staging ground, and mining ground, to utilize resources to terraform Mars and Venus. Mined for fuel and resources to get to Mars. Other materials mined could be stockpiled and then sent to Venus to help to neutralize Venus atmosphere.

[@ConnorAustin]

Those tunnels would be epic for skate boarders

[@br1rocks]

Awesome video! Still pulling for a Venus colony…

[@riderpaul]

Living on the surface of the moon would require a massive magnetosphere since the atmosphere would be so thin.

[@riderpaul]

Small potatoes for this channel, but still worth mentioning :)

[@bradleycarson6619]

Thank you so much for your video! I love your refreshing, polite and optimistic tone. I think your mixture of possible with science and imagination adds so much and is so valuable! thank you. Not sure if anyone will read this but if we had that many people on the moon we could have a mixture of industry and recreation, habitable micro environments that are like pocket historical periods or theme park type things that we could create. There is no limit with that type of energy and resource transformation.

[@sora_scorcher7921]

I love your your subtle childlike pronunciations it is so adorable keep up the great work.

[@mrpurple2204]

I love these regular annual Moon videos.

[@roadkillanonymous4807]

I have a feeling the moon being as massive as the earth would make for some “interesting” tides haha

[@happyhome41]

Only one woman in the group photo -- have MUCH work to do to tap half the population brains. Courage and conviction, working to a better world - THANK YOU !!!

[@user-pl3lo8cc8y]

what about spinning bowl shaped colonies as mentioned in other episodes, to simulate earth gravity?

[@edwardgatey8301]

Simulate, yes. Centrifugal force is not the same as gravity. We have both on earth, but the spin of earth, or orbit, don’t really affect gravity. You wouldn’t notice centrifugal force unless a deity suddenly stop earth’s rotation. Half of us thrown into space, the other half squashed into the planet. Neil degrasse Tyson.

[@isaacarthurSFIA]

Yep, that's an option but they really are more like a deep urn than a bowl when gravity is that low, I suspect that will be an option used in places where they know what the minimal safe healthy gravity is and the place is somehwere between 25%-99% of that. Which might be the Moon, but let's you have something more bowl shaped.

[@isaacarthurSFIA]

Needless to say, crater cities are good place for such urn-habs and their empty bottom a nice place for one of those gravtrain station and tunnels to start at.

[@sarcasmo57]

Thanks Isaac.

[@cliffhregis]

I vote we name the city Luna City. 🙂👍🏾

[@yendorelrae5476]

You are so very appreciated Isaac!

[@harbl99]

Twelve minutes in and we're already at "turn the moon into a giant donut; it's just more efficient"! Isaac does not do small thinks.

[@comentedonakeyboard]

Lawsuits, by people who bought real estate on the moon, might be the hardest obstacle 😂

[@hallamhal]

Not sure whether we'd want to increase the moons gravity, isn't having a lower escape velocity one of the reasons to use it as a base in the first place?

[@TheEvilmooseofdoom]

Well, by the time we can increase the moons gravity escape velocity will have long ago stopped being the problem. :)

[@aprilruledearth]

As a Finn, 2 weeks of light would sound very good right now.

[@godsbadkarma]

UGH! Would kill for a podcast or something with Isaac and David Kipping together!!!! They could narrate grass growing or paint drying, and I would be enthralled for hours at a time!!!

[@maxkronader5225]

It is always a welcome break to tune in to SFIA for some optimistic and scientifically valid views of our potential future rather than be bombarded with all of the doom and gloom political BS infecting the rest of the internet.

[@sonfromthesun007]

You’re a blessing to human beings!! 👍

[@SonicBoone56]

NASA Artemis mission every time Isaac makes a moon video: WRITE THAT DOWN

[@DicePunk]

Yay! Moon video.

[@isaacarthurSFIA]

its scheduled :)

[@lh8071]

Thanks Isaac. You are a bloody legend !! Nailing it🖖

[@kjames982010]

This is PERFECT for researching the moon's city scape in THE HARD RETURN series. thanks! :)

[@AAAAkaishicÌIÍ636]

Can you please do a video on moving Earth to the new habitable zone when the Sun expands?

[@bradfordhatch5085]

Why wait that long? We could do it more gradually over time as the sun steadily brightens between now and the time it balloons into a red giant.

[@virutech32]

Don't think that's really a technology outright but an application. He's mentioned planet ships before & mass driver/orbital rings can be used to do this largely propellantless on fairly short timeline

[@jonathanhensley6141]

Need a scyfy series that deals with upward and outward bound and becoming an interplanetary species with fully developed earth and the moon. Awesome video

[@MartinCHorowitz]

We need a Moo Moon episode about cattle ranching on the moon :)

[@Mortzzz]

So awesome. Love your videos

[@GrimmSpector]

Times are tremendously messed up; I hope for that utopian future that we're capable of as a race, but with the current system we just can't go that direction. Appreciate the well wishes for the community, I hope you're managing your stress and everything in a healthy way Isaac.

[@dustinbrandel59]

In terms of issac arthur style storytelling, making a magfield around the moon to hold in an atmosphere, should be pretty easy.

[@EgoEroTergum]

991 views in 14 minutes. It makes it easy to believe in the power of scale when more people than you will know personally in your entire life have already spent 9 straight DAYs of subjective time watching a video before a single viewing is even able to be fully completed.

[@juimymary9951]

About the increased gravity scenario, I'd argue that similar results could be achieved by manipulating dark matter as opposed to creating black holes. I recall that from a video of yours about the potential dark matter based technologies.

[@DanielGenis5000]

Thanks for another one I can’t wait to hear! Isaac, my book is available on Audible, Sentence by Daniel Genis. I’m the narrator too, so you’d be hearing me read my own work…. Take care!

[@DanielGenis5000]

@orkhaa Isaac sounds like he supports science and progress to me. Also, he doesn’t employ faith in his politics, considering whom he supports- and how would you know anyway? If I was Isaac, I’d erase your comment and ban you from the show, as you sound like the exact narrow-minded bigot you accuse him of being…

[@j-twd930]

@orkhaa what does politics have to do with the video?

[@hatac]

Easy mode would be to add 200 km diameter solenoids generating magnetic fields on each pole creating a global magnetosphere and/or a few 20 km ones on major city locations. creating local magnetospheres. Add a few 2 km tracked centrifuges at each population center. These allows a few hours at 1 g for gym, dining, bathing spars etc. "Re-set the bone growth and blood pressure with your daily gravity fix". Everything else is enclosed archology, domes and lava tubes with artificial light. Power sats, fission, fusion, surface or roof top solar with diverse storage are all option. On the moon the distances are low enough for the night side to be powered by day side solar.

[@brettschmeisser2568]

For what it's worth thank you for your content. Your videos inspire me with my Lego moon base moc.

[@LordDragon1965]

I'm a big fan of using the tunnel through the moon to launch probes and long distance missions out system.

[@tomcavness]

Wouldn't changing the moon's gravity have an affect on how it interacts with Earth? Perhaps even affecting its orbit? Seems like it would definitely have an affect on Earth's tides...🤔 Oh, nevermind...you addressed that. I should have known you wouldn't leave that out.

[@vincentcleaver1925]

Times to hit the moon again, literally

[@chadphillips6098]

SFIA; the most interesting place in the universe.

[@skumomcbee1255]

Thank you so much for the ending emotional encouragement... I really needed it :)

[@cavetroll666]

thanks Issac :)

[@caejones2792]

Just the other day, I was listening to Space-Audio's Voyager recordings, and the clang from instrument interference went from an occasional gong to sounding a lot like the intro for this episode by Neptune. It's just missing the random bursts of fast-tempo jitter.

[@mcconkeyb]

So the current NASA budget for each moon launch exceeds $4 billion. Unless the economics of these launches change dramatically, the path to a moon base will be measured in millennia not centuries!

[@Dang_Near_Fed_Up]

Excellent episode, gave me a few ideas for some science fiction projects I would like to create in the future.

[@colinsmith1495]

I would LOVE to see a colab episode between you and David Kipping! Both of you do such an incredible job in your fields, and they've got so much overlap, but each one has it's own focus. Seeing a fusion, or just a contrast, of what each of those views brings to a problem would be incredible.

[@EpicReverberations]

So glad you didn't look down on Total Recall's core train system