Fleet of Stars

[@cannonfodder4376]

9:48 "The advanced technology employed to move stars, something most science fiction writers would view as Clarketech, so advanced only godlike aliens could do it, employs an ultra-sophisticated device known as the Stellar Photon Reflector, or more commonly, a mirror" Oh this quip had me smiling, said with a slight smile and yet almost non chalantly. One of the things I like about your explanations Isaac.

[@gibbous_silver]

Caplan thruster: am I a joke to you?

[@digitalnomad9985]

Only his mirror is the wrong shape. His mirror gizmo is shown as a schematic hemisphere, but it should be a schematic paraboloid section (rotation of a section of parabola on one side of the star around a focus-center axis with the star at the focus), both for efficiency and to avoid doing bad things to the star by reflecting half of its light/heat back at it.

[@michaelcherokee8906]

@@digitalnomad9985 What WOULD happen if you reflected a star's energy back at it?

[@pentagramprime1585]

This is SFIA. I don't wanna move a house (or a planet), I wanna move a supercluster.

[@pentagramprime1585]

​@Vladislav LB talk to Stewie.

[@MardrukZeiss]

That would be our method to unite the Laniakean supercluster.

[@ChrisBrengel]

LOL!

[@ChrisBrengel]

@Vladislav LB I didn't think you could one up _that_ , but you did!

[@jonathanrabcewicz6191]

I believe this is where the cap is. The timescales and distances involved would make any communication and therefor coordination impossible. I mean between the individual galaxies you want to move...

[@blakewalsh9489]

My cat loves the animation of the Quasar drive (20:26) she keeps batting it with her paws.

[@Bland-79]

Watch out! Your cat will knock it over before you can stop it. ;p

[@hazonku]

Jim Bridenstine's great great grandson in the future, "We regrettably must inform you all that today has not been the best of days for NASA or Space Force. My great great grandfather took us back to the moon just when we had almost forgotten about the cosmos, I however must be the bearer of bad news. The Quasar Drive saw a massive failure when a random cat in mission control batted at the start sequence UI & knocked all the parameters off. The drive subsequently spooled up too fast, dumping all the ship's material fuel at once. This resulted in a catastrophic explosion that destroyed both the ship & the fuel we spent over 200 years gathering from the belt. On a positive note, we may not leave the system in a timely manner but a cat managed to knock every potential asteroid that could have posed a threat to Earth off the solar table."

[@ydvisual5530]

Hey Blake, I am the one who made the quasar drive animation :) I ran it through a quick cat check, but I guess I missed something LOL

[@e1123581321345589144]

I think your cat is trying to tell you this is how they arrived on Earth.

[@ronschlorff7089]

@@ydvisual5530 ...what "a quick cat check"? Oh, you mean a cat scan! Now I get it! :D

[@teutonieth]

Ok, I've been following Isaac for years, but a black hole powered ship, crossing galaxies is the most scifi we have gotten thus far.

[@lazarus2691]

A galaxy sized layered Birch planet just short of collapsing into an ubermassive black hole was pretty up there too.

[@bobinthewest8559]

"Black hole drive"... Sounds like a song title.

[@J0hnB09]

@@lazarus2691 video?

[@lazarus2691]

@@J0hnB09 Mega Earths, at the 21:36 mark: kzbin.info/www/bejne/n6CumpeZpdCNhJI

[@billybeck8169]

😂😂

[@jgr7487]

this is one of those episodes in which the best answer to when Isaac asks Why would a civilization do something is "why not?"

[@ronschlorff7089]

or "OK so it's impossible!...., When can it be done"?

[@josephedmond3723]

A fleet of stars. A Starfleet!

[@vahangood5999]

Isaac Arthur's videos are probably the only ones that I wish were a lot longer. Bring back the 40+ min episodes, if possible please! Thanks again for the great work you do for us!

[@SurnameName]

oh my god the concept behind some of your videos...

[@DanielFenandes]

Next episode on SFIA: Moving our universe to another dimension

[@Anthony-yn9dg]

Faaaark

[@ronenshtein7083]

that's kind of a nonphysical premise though lol

[@ThePainqT]

We should just take our universe and push it somewhere else!

[@ПолорЄлеон]

Why not btw?

[@ПолорЄлеон]

I mean "dimention" is not a thing you can move in from math. point of view obv, but maybe something like "reconfiguring the Universe"?

[@TheZankoh]

This video gives a new definition to what a Starship is!!

[@randomnerd4211]

40th Century Star Trek: "Intergalactic Space, the final frontier, these are the voyages of the Starship Enterprise" *Camera pans over giant Dyson Swarm*

[@mikelfunderburk5912]

Hello to all the S.F.I.A. fans. Happy Arthursday!

[@joethestrat]

I. Love. This. Channel. I sent it to my mom and now she's hooked too haha. We decided to buy SFIA shirts to support the channel. In an age of garbage media we need more channels like Isaac Arthur. Keep up the great work everyone!

[@CarFreeSegnitz]

NASA: "We're going to the Moon". Musk: "We're going to Mars". SFIA: "Hold my quasar drive".

[@boreddude3898]

@BLAIR M Schirmer what kind of a fucking genius are you?

[@DAYBROK3]

Moosy Man, he is a regular s.f.i.a. Watcher.

[@boreddude3898]

@@DAYBROK3 I swear I am too but I don't remember being THAT creative

[@albertjackinson]

I love SFIA-style humor!

[@numnut1516]

BLAIR M Schirmer sounds like wandering earth I think Isaac recommended the book/movie in the past

[@dronillon2578]

23:45 blows your mind, 23:53 then tells you to wait a week for far coooler stuff! Thanks a bunch anyway! Then blows your mind again a minute later. I LOVE this stuff.

[@TheCsel]

Just got done watching iron star episode and was wondering what to watch next. Oh hey a new ep released 1 minute ago. Nice timing.

[@discomfort5760]

Watch Colonizing Jupiter after this! And welcome to SFIA

[@beringstraitrailway]

Watch Evacuating 🌎 Earth next. That was the very first SFIA episode that I ever saw!

[@TheCsel]

I've seen others previously, though only started this spring. I just happened to finish a video when a new one came out.

[@commode7x]

What do you mean these drives aren't named yet? I propose we call them the Isaac Drive and the Arthur Drive.

[@zrebbesh]

I'd have thought the DAVE drive. (Dangerous And Very Expensive)

[@ls200076]

@@zrebbesh DAMNED DAVE

[@gibbous_silver]

Caplan thruster gang

[@Drew_McTygue]

Your graphics team does amazing work Isaac; if they're paid, they deserve a raise. Im doing my part by upping my patreon donation to your channel.

[@ydvisual5530]

Hey Drew, I made the quasar drive animation in this video and a few other parts. It's great fun working with SFIA! If you have time please like my facebook page "YD Visual" (Link in comments, name is Ken York)! Now working on black hole weapons episode !!!

[@freddyd1783]

2:07 "...a colony ship has little external pressure" you mean the vacuum of space?

[@richardbowles6110]

Frederick Douglas just what I was going to say

[@glacialis]

It was in the context of civilizations. Civilizations usually fall from external pressure, meaning outside factors. A self-contained and isolated civilization, even one as small as a spaceship, probably won't be in contact much with other civilizations.

[@glacialis]

Context. Ugh.

[@beringstraitrailway]

Chris Brinkley You can always edit your own comment after you post it, just click on the three dots to do it.

[@hazonku]

Yeah I thought that too. What a missed opportunity for an awful joke.

[@DaManBearPig]

Issac, if you read this, I just want to thank you on behalf of the internet. I was quite depressed about the future of the earth and climate change. But you’ve inspired me to go back to school for engineering and computer science. You’ve shown me that the only future we have is the one we make, and your video catalog has proven this. Thank you Issac.

[@brettrobinson9713]

I thought this channel would run out of content but it just continues to amaze....best KZbin channel I subscribe to keep up the awesome work

[@ronschlorff7089]

Right, I'm waiting for the episode where we evolve into hyper intelligent beings with the power to create anything out of the raw elements around us, just by pure thought. Like the Krell of Altair IV tried to do! But let's not forget about the "monsters from the Id".

This is why I love this channel. What's better than turning a star into a mobile home? Making million or billions of them!

[@ColdHawk]

Maybe the solution to the Fermi Paradox is that the universe is full of aliens who find us so noxious they are piloting their stars and galaxies away from us at more than the speed of light? Like when you see that boor from marketing looking for you at the office holiday party....

[@FirstRisingSouI]

Episodes like this are why I subbed to this channel.

[@Twisted_Logic]

"Why would you want to do this?" When has a little question like that every stopped SFIA before?

[@anna-elizabeth]

As Covenant sings - "Dead stars still burn" - especially with a Forced Pulse Supernova or even the Quasar Drives!

[@singletona082]

If nothing else they are still useful as material and mass dumps.

[@anna-elizabeth]

@@singletona082 Indeed. I have learned to think in a new way about so many things since I started watching Isaac Arthur.

[@DavidEvans_dle]

NASA announcement -“ We're going to the stars! And we're taking the Sun with us! "🙄

[@discomfort5760]

But David, we already are doing just that!

[@bitbucketcynic]

At the equivalent of having the cruise control on walking speed, with our hands off the steering wheel.

[@ganaraminukshuk0]

"Don't talk to me or my sun ever again." - Flat earth megastructure maintenance guy for the orbiting sun spotlight

[@bobinthewest8559]

NASA announcement No. 2: "We guess you can all come along."

[@Solon1581]

14:30 In that case, let's just call it the Arthur Drive from now on. All in favour say aye, all opposed say nay.

[@SethlingtonStudiosCo2003]

Aye.

[@commode7x]

@@SethlingtonStudiosCo2003 Don't forget about the Isaac Drive, which he proposes a few minutes later.

[@SethlingtonStudiosCo2003]

Sure thing @@commode7x.

[@anna-elizabeth]

Aye, and aye again!

[@TheKielbasaKid]

Aye!

[@liamimbriolo6066]

We need a scifi movie/mini series/series based on the rules and law discussed on this channel. I'm pretty sure you can tell an epic tale of the human condition involving romance, action, tragedy, drama, mystery etc, but in space. Realism can be just as enjoyable as the fantastical.

[@ripgeneral]

and with each season we will get that each layer stacks on top of each other. And ancestors will be literally live in stars, because they are hiding from something.

[@Capynight927]

Orions Arm (orionsarm.com), is a huge collaborative worldbuilding project, using many of the hard sci-fi concepts sfia covers.

[@Eckendenker]

The motto of this channel truly is: The sky is no limit.

[@Sharyf]

Dark Energy - terrans, in the end your cosmic horizon will shrink to milkdromeda, you wouldn't even know there was something beyond. Humanity - hold my supermassive-blackhole-qusar-drive...

[@ronschlorff7089]

"Milkdromeda"? Yuck,... that sounds like a lactating camel!!!

[@randomnerd4211]

@@ronschlorff7089 It's the nickname for the galaxy that will form when the Milky Way and Andromeda will collide in a few....million years, if I remember correctly. Might be even longer though.

[@ronschlorff7089]

@@randomnerd4211 Right, I knew that, it was just my lame attempt at humor! Could be worse I guess, like Dromedamilk! Then I'd have said "Double Yuck"! Get it? Two humps! LOL. Cheers :D

[@CorwynGC]

@@randomnerd4211 Few Billion years.

[@ronschlorff7089]

@@abhiprakash74999 Like, Good!! :D

[@thomas.02]

9:48 i love this part a lot! almost up there with the 1st rules of warfare and "black holes are safer than planets yall" moments

[@maan7715]

oh this idea reminds me of Arthur C Clarke's City and the stars book. Well, let's make my tea and watch it

[@StopChangingUsernamesYouTube]

This video finally made me realize that the best solution to save time going to and leaving work isn't to work from home, but to just move work closer to home.

[@ts70337]

Not only are you a great teacher, wish you had been my high school science prof, but you also have some mighty fine music to accompany your stories. Went to see Markus Junnikkala and bought his Andromeda. Really evokes the vastness of time and space. Reminds me a lot of Babylon 5 and the music that was part of that show.

[@Kurai_69420]

The Great Attractor will become the ultimate quasar drive

[@petersvancarek]

The great attractor is cluster of galaxies...

[@briandiehl9257]

@@petersvancarek And? This is Isaac Arthur's channel, he'l probably figure something out

[@singletona082]

@@briandiehl9257 'Hold my beer.'

[@ronschlorff7089]

My uncle has a Great Attractor on his farm in Manitoba; I think it's a John Deer!! LOL.

[@petersvancarek]

@@briandiehl9257 :D yeah, something with delta v in single digit km/s. Stardrive with the Sun in core had delta v about 30km/s for the entire lifetime of sun! How useless is that?

[@kokofan50]

One thing I love about this channel is y’all aren’t afraid to think big. Moving a planet: not bad but could go bigger. Moving a star: now that’s more like it, but doesn’t quite have the wow factor. Moving a whole group of stars; perfect.

[@evervigilant]

...Uhhhhh..... My poor old normal brain takes such a beating on Thursdays, Thanks Isaac!

[@singletona082]

In fairness? Our brains were evolved in an enviroment where the most complex piece of technology was a pointed stick or a knapped rock for a hand axe, and the largest group you might find is a few dozen or so at absolute most. The fact even in some small fashion the human mind can comprehend this well enough to design it at a high concept level? Is amazing.

[@T3HR3PP4]

Somebody: How hard do you like your Science Fiction? SFIA: Yes!

[@greygoo5319]

I might not be first, but I'm part of the fleet. Heave-ho starsailors!

[@ronschlorff7089]

Astronaut= Star Voyager!

[@kazaddum2448]

Arr, those pesky landlubbers over there on their non navigatable gravity wells!

[@albertjackinson]

As always, I love your content! You are a great voice to the people who love this stuff! Keep up the great work, Isaac!

[@tdjolliff]

16:20 you mention collecting matter from outside your moving system to add reaction mass to your star from which you are spewing a truly awesome amount of mass for relative velocity i remember a magnetic ram jet idea for that in a book i think was called zero tao but what i wanna know is what methods we would use and why

[@jonathanhensley6141]

Imagine if our science classes In high school and college were explained like this. It gives us a hunger for learning.

[@AsobiMedio]

"And this is where we keep our star fleet." "Don't you mean star ship fleet?" "Did I stutter?"

[@chad_bro_chill]

Thank you for shining another glimmer of hope on the future of our species, my dude.

[@christopherross8358]

What if Game of Thrones takes place on a Generation Ship?!

[@AdredenGaming]

I have thought for a long time it could all be in a Dyson's sphere. Given the curvature of the map, the place ment of the sun in the intro and the strange long season's could be various plates orbiting the star between the the star and the surface of the surface

[@hatman4818]

The real twist.

[@pipe2devnull]

Perhaps it did and something went wrong with the weather control (As well its crew going medieval)

[@CarFreeSegnitz]

The GoT title sequence sure looks like a bunch of ring-worlds around a star. The other thing I thought might make GoT == ring-world: Daenarys' invasion plans that only considers a westward approach. On a globe an eastward approach is plausible too. But on a ring-world the size of Earth's orbit the two approaches differ by nearly a billion km. You could just take the shortest path to you neighbour, maybe 30 metres, or walk all the way around the globe the opposite way, 40,075 km. The seasons are wonky though. Maybe millions of years of neglect have messed up the inner shadow plates and the drift-correction thrusters. Perhaps the inconsistent winters are symptoms of thrusters over/under-correcting for drift. Shadow plates shaped roughly like hour-glasses could explain the north-south climatic differences.

[@robinchesterfield42]

! Anybody here heard of/played Phantasy Star III...? Well it takes place in a medieval-y type society over the course of three generations (!) and you get to pick who your character marries in each of the first two, thereby determining the stats of your third main character. Which is awesome. There're these weird tunnels you always have to cross through to get to the other kingdoms, each of which has its own climate, and the tunnels are weirdly...high-tech looking... And the "monsters" you fight look awfully robotic. But, TO US--remember, the _characters_ have no reason to be suspicious of this. (Also there's some form of magic; the game's first plot event is that your fiancee gets kidnapped by a dragon that turns out to have been a shapeshifted human.) At the end of the game, your third-generation character goes to the moon and sees a map...which turns out to be a schematic of the generational ship you've been on this whole time, the tunnels are access hallways, the kingdoms all have different biomes because they wanted the new planet they were going to go have a diversity of stuff from their home world, the "monsters" are maintainance robots that went awry and the "moon" is actually a companion helper-probe type ship. HELL yeah! :D Game of Thrones in space! Well kinda. There's a lot less blood and...erm..."forced woohoo". But still! Heck, your last character can even be kinda inbred. ;)

[@sparcer1]

Hey Isaac, i just want to say that i love your content. I listen to it everyday on my 2hr commute. Its like you are saying what I think. Amazing stuff.

[@brokenblackbird]

Just love the way Isaac Arthur comes up with all these new and interesting ideas.

[@-KillaWatt-]

You are the best futurist living today. I read a ton of material and what you put forth are leaps and bounds ahead what others are discussing. Truly brilliant work.

[@feynstein1004]

The part about moving stars into closer, tighter orbits really got to me. It's almost as if you're terraforming the whole galaxy, making it more efficient and suitable for habitation. But what if we could take it even further? Move entire galaxies and merge them all into one supergalaxy. It is quite an entertaining thought.

[@rufusapplebee1428]

There is a reason for the large distances involved in galactic or super cluster dynamics, otherwise the gravity will rapidly take over and merge every thing into great attractors or great voids.

[@feynstein1004]

@Rufus Applebee I didn't quite get that. Would you mind elaborating?

[@rufusapplebee1428]

@@feynstein1004 let's assume a small super cluster of 1000 galaxies with an average total mass of 1 trillion solar mass per galaxy with average 500 billion stars per galaxy, we have 1 quadrillion solar mass for the assumed hypothetical super cluster. If we bring all 500 trillion or so stars in a single spherical galaxy with a radius of 500 thousand light year, we have 1000 galactic nuclei with above 1 billion solar mass each trying to keep all the quadrillion stars gravitationally bound. While trying to either remain in stable orbits with the other 1000 galactic nuclei or ending up merged in a single spherical galaxy nucleus with 1 trillion solar mass. Its event horizon could reach between 0.1 to 1 light year. The Galaxy's inner 100 to 1000 light year zone would be highly volatile. Although it might be possible to custom engineer stable orbits for such a collection of quadrillion stars systems, it probably would be comparable with the largest observed galaxy in the universe. And apart from natural evolution of galaxies, will most definitely require mastering dark matter manufacturing or manipulation, if not dark energy engineering, in order to keep such a custom galaxy stable, not including the regular maintenance of such a galaxy in cases of any supernovae and singularity formation as per normal evolution through the Galaxy's lifetime.

[@crazyahhkmed]

Watching SFIA while sipping on my pre-workout, getting ready to hit the gym.

[@djdrack4681]

A Birch Planet sized object would create other benefits. Being a galaxy-mass object (new term ?) you'd be able to attract entire clusters of stars and chew them up with stations around your perimeter as resources for mass-feeding the smbh, or for mass needed for the civilization.

[@Ryukachoo]

Nobody Isaac Arthur; "ain't no kill like OVERKILL"

[@singletona082]

Musn't be afraid to dream bigger Darling.

[@danikahicks2210]

That the first rule of warfare...

[@gregorydamario5773]

Yabba Dabba Dooo! Thank you for crediting RAH for his pioneering foresight. He as one of my favorite authors when I was growing up. Too bad his excellent political novel, "Starship Troopers", was movified so abysmally.

[@silent_stalker3687]

Why don’t we take all the stars and move them over there?

[@WhatAboutall]

From over there to over there.

[@kevincrady2831]

"No, wait, that globular cluster would look better on that side, with the nebula as a backdrop. Wait--" "Oh, come on! How many times are we going to have to move this thing?!"

[@WhatAboutall]

@@kevincrady2831 Can't imagine the power, or technology of a people that could one day actually be capable of doing that.

[@jozsefkalmar7054]

"Sorry, Andromeda. Let's just be traveling buddies, OK?"

[@samlevy9897]

Me: Okay, he literally made a video called "Giant robots and Power suits". It officially cannot get more awesome than tha- SFIA:

[@Valois_Kressa-Heller]

When you decide to one-up Starfleet.

[@marlonlacert8133]

define STARfleet.. lol

[@UNSCPILOT]

One up seems insufficient, this is something closer to a 1,000,000+ up

[@bobinthewest8559]

Aliens using this technology, looking at our rockets: "Awww... that's SO CUTE!"

[@robpayne1956]

Mr Arthur I look forward to each and every one of your videos and have even binge watched many of your older Videos. May I also add that since I have done that I think your speech is much improved since you started with these videos.

[@DavidBarkland]

Why would we build this? Aside from "Because we can", you mean? I think "Because we can" is a totally reasonable reason.

[@tolep]

No.

[@Arisudev]

Yes. In a civilization with hundreds of billions of advanced transhumans, so rich of materials and time, there's a good chance a million of them will group up and make this thing just for fun and giggles.

[@uafc1]

Not really

[@martinjoseph5410]

Welcome to SFIA! We are renowned across the Multiverse for our beautiful structures and mesmerizing concepts! From Flat Worlds to Ringworlds, From Dyson Swarms to Dyson Spheres, From moving entire systems to moving entire galaxies, We here at SFIA have no limits! Our CEO Isaac Arthur is considered the richest man in the entire Multiverse in all 10 dimensions! We even have our very own day, celebrated across the Multiverse, known as Arthursday! SFIA. Building the Future, This Thursday.

[@ramonpizarro]

Sign me right the fuck-up

[@TURTLEMMC23]

How effective can a black hole "shield" be in the front of a ship? one in back to push, one in front to protect. an extra to attack. lol.

[@slackerpope]

Thank you Isaac! Thanks you SFIA! Y'all are the best of the net. Please keep up the great work. Love the book recommendations!

[@mfbe73]

You really should consider making some of these visuals available for purchase. 23:34, wonderful!

[@ScoriacTears]

Reminded me of the Puppeteers Klemperer Rosetta described in Larry Nivens Ringworld ( oo that's on audible I'll bet). . . hmmm or is it Kemplerer.

[@donperegrine922]

Stuff it. I'm going to join up with Audible. Thanks Isaac.

[@MaestroRigale]

I can’t actually watch this video until later today, but I’m SO excited for this topic!

[@CodeLeeCarter]

Podcast Night, awesome,... Thanks, Isaac.

[@mjsvitek]

Best day of the week ❤️

[@phillipj1135]

I think the book is called the parade of worlds by larry Nieven (200 years before the events of ringworld) Roddenberry also had a junk specie known as the magog rolling around in a world ship which was a dwarf star and several orbitals. It's a neat idea.

[@JeanLucCaptain]

Tarkin: fear will keep the local systems in line! Um: sir those star systems just started moving, TOWARDS US. Tarkin: WELL S@#$

[@volcryndarkstar]

Can't wait for the episode where to tell us how to move the multiverse to a new multi-multiverse.

[@numnut1516]

Taking “star fleet” to a whole new level

[@Wayoutthere]

Aaah I needed this after Netflix's 'The Wandering Earth'...

[@dudeatos]

You should check out Aniara if you don't already know about it, it's a Swedish epic poem about a colony ship leaving a ruined Earth for Mars that gets knocked off course and sent into deep space and the way the passengers deal with existential dread that comes with that.

[@alexandercolefield9523]

Now, we are assuming here standard mechanics as we know it, but because of dark energy, we could only ever go to galaxies within the local group, as galaxies outside of it are accelerating away from us. So we really only have two galaxies to aim at with this thing, seems limited in utility to us.

[@robertwahlstrom]

Wonder if it would be theoretically possible to trigger controlled gamma ray burst in stars and use those bursts as a truster. Feels like such a solution would be more material-efficient. Basically turning the hole star into a giant rocket. Technically you could also use those gamma ray burst as a weapon as well if you encounter hostile civilizations on your way.

[@szymonwlodarczyk5356]

Wow I'm so glad I have found your channel again! I lost your channel so long ago back when you had 50k, I love to see that you have grown so much in this time! Your videos are awesome, please never stop making them! I love the animations and your commentary is amazing!

[@4G12]

The scientifically plausible version of Starkiller base. Good.

[@UNSCPILOT]

Several orders of magnitude more powerful too, a Nicol Dyson beam would melt Starkiller into slag easily, shields and all, and Starkiller base was seemingly immobile unlike the death star (which itself would be even easier to hit since it needs to be close to a planet to fire

[@xassix]

Since the quasar drive fires beams both forwards and backwards would it not be smarter to move the engine(s) to the side of your ship instead of directly behind you? You know, like the nacelles of a star trek ship. That way you would minimize the radiation that hits your crew and you could direct part of that energy forward against incoming debris.

[@ydvisual5530]

Hey Xassix, I am the one who made the quasar drive animation. We are working on a few variants now since a lot of people had ideas like that too !

[@leonardhopper857]

Spotted the Puppeteers home world have you?... or Ringworld?... Tabby's star, one under construction?? hmm....

[@SempSSY]

Drinks and munchies for me and the kiddo's Check! Happy Arthursday everyone :)

[@kingbyrd.1512]

Before we can move such massive things, we must first move our attention to *Sexy Aliens* We all want it Isaac...and you know it.

[@kevincrady2831]

Are you sure? Like the Giant Robots episode, it would likely consist of logical, scientific reasons why "sexy aliens" are not going to be a thing. On the other hand, people will probably be able to genetically modify themselves to have extra head-bumps, radically different skin coloration, horns, wings, tentacles, chromatophores and whatnot long before we meet any aliens. The critters in the Mos Eisley Cantina scenes of the future will have human origins. :)

[@VainerCactus0]

Sexy aliens is unlikely, but sexy genetically modified creatures is very likely.

[@kingbyrd.1512]

@@VainerCactus0 Makes more sense. It would be interesting to see him talk about it. The ethics behind creating a being just for sex. And how it would affect human interactions like romantic relationships amongst humans etc. Would there also be an uprising from these sexy organisms?

[@kingbyrd.1512]

@@kevincrady2831 Yeah i agree. Would be weird lol. But at least I would be able to live out my kinks

[@ronschlorff7089]

But we already have sexy aliens, they are called chicks from other countries of Earth!! And they all can "speak our language", so to speak!! :D

[@notmadeofpeople4935]

House of sun is my actual favorite book.

[@LaserGuidedLoogie]

Thanks Arthur, this makes me think. Perhaps we can see this already, but we just don't know what we are looking at. For example, we might look for stars with large proper motions (e.g Barnards star) as evidence of "someone" moving their star. Or stars like "Tabby's Star" could be examples of a large stellar drive being built. Also, Globular clusters might be examples of a K3 civilization putting together large numbers of stars, relatively close together, for the purpose of resource allocation.

[@CarFreeSegnitz]

All examples of stellar engineering would have to come with large spikes of excess infrared. The energy to transfer to kinetic energy needs to come from somewhere and the motivation for moving stars in the first place is to derive that energy from stars. Thermodynamics demands that excess IR would result. If ET had some magical non-stellar energy source then ET wouldn't be bothering with moving stars around to begin with. Nuclear physicists don't bother with campfires.

[@AdredenGaming]

Whoa! new pbr rendering with better Albedo, Nice :)

[@tylerduff100]

So hypothetically you could use a star drive to ram a star into another stat. It would probably be a waist of energy but just saying it would technically be possible.

[@stc2828]

Wandering Earth: Accelerate Earth out of orbit with heavy fusion planetary engines Audiences: Wow that is absurd Isaac: Hold my beer!

[@vovacat1797]

This hyper-advanced future stuff always gives me some polytheistic gods vibe. We bend the natural universe itself to suit our purposes. We get to ride freakin' sun chariots of our own!

[@Roxor128]

Gods have NOTHING on what our descendants might do.

[@hunam1464]

Fascinating concept, Isaac. Says me who sees Isaac Arthur posted 1m ago, and instaclicks.

[@Phantom-bh5ru]

Imagine just chilling and you see an swarm of stars zooming towards you

[@peterxyz3541]

If you have to contemplate truly long voyages, you have to plan for edu-tainment such as THIS CHANNEL!👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼❤️🦄🐶🐶🥔👽

[@jimmyshrimbe9361]

Heck yes! How exciting!

[@gregschool9]

Wow, thanks Isaac for the shout out!

[@lukasfarber7979]

Unpopular opinion: I've been with the channel from almost the beginning and I miss the 'Wascally Wabbit' accent 😢

[@jgr7487]

I miss the little cartoon he'd put on the side when making that announcement

[@lukasfarber7979]

@@jgr7487 Same!

[@palarious]

I'd like to see a more detailed breakdown of the quasar drive. I watched the black hole ships episode and still feel like the mechanism isn't fully explained, though the ramifications are.

[@ydvisual5530]

Palarious, this is Ken York (YD Visual), I did the animation for the quasar drive. There were quite a few questions on that. I am working on a few variants and descriptions to show it in more detail with more information for Isaac Arthur and other physicists and engineers. More to come !

[@palarious]

@@ydvisual5530 That's awesome! Thank you!

[@ydvisual5530]

@@palarious sure no problem ! Are you on Facebook ? I am about to create a group for Quasar drive designs. My page is "YD Visual" on Facebook. Are you an enineer by any chance?

[@Sharkey007x]

Wouldn't any of these be a terrible idea because of the massive gravity well that you are shifting around and introducing to new systems? Or would the plan to be to drop off colonies from outside of a system to try and avoid that?

[@nqvy_4546]

Hi Isaac. What if we put a dome over one of the jet cones of a nuetron star? I would love a video on this possibility.

[@nqvy_4546]

Could this also work for magnetars and black holes?

[@TheExciteMike]

To add another comment to Orphans of the Sky, the Sega Genesis game Phantasy Star 3 had the same concept where a civilization regressed to the medieval age and forgot they're on one gigantic space ship sailing through the stars. It's a cool playthrough and pretty innovative!

[@DiggityDaws]

Your content is incredible. Keep it up sir.

[@Argyuile3]

Isaac Arthur is the reason to love Thursday

[@millamulisha]

Station keeping for each of the mirror satellites could be via magnetic repulsion. That way could ‘tag along’, maintaining each’s position relative to the moving star. :D