Exo-Stellar Civilizations
ฝัง
- เผยแพร่เมื่อ 28 ก.ย. 2024
- Our future in the galaxy is typically envisioned as tied to the stars, be it on planets orbiting them or vast megastructures fueled by the alien suns, and yet the true future of humanity might be to dwell in the vast gulfs between the stars or even in a galaxy in which those stars have ceased to exist.
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Credits:
Exo-Stellar Civilizations
Science & Futurism with Isaac Arthur
Episode 281a, March 14, 2021
Written, Produced & Narrated by Isaac Arthur
Editors:
Jason Burbank
Jerry Guern
Keith Blockus
S. Kopperud
Cover Art:
Jakub Grygier www.artstation...
Graphics:
Bryan Versteeg
Fishy Tree
Jeremy Jozwik
Katie Byrne
Ken York / ydvisual
LegionTech Studios
Sergio Botero www.artstation...
Udo Schroeter
Music Courtesy of Epidemic Sound epidemicsound.c...
"Avoiding law, taxes, or self-replicated kill swarms seeking to wipe them out..." Story of my life.
You are either conservative or liberal
@@zippy-zappa-zeppo-zorba-etc Just a squirrel trying to find a nut
@@RCAvhstape Funny. Thank you :)
@@zippy-zappa-zeppo-zorba-etc except NatSoc is neither
This episode reminded me a lot of Sid Meier's Alpha Centauri expansion with the Nautilus Pirates. By starting out in the void of the ocean away from everyone else, you started with an immense area to expand and it was much harder for potential enemies to even get to you. Most times you would be such a massive empire by the time first contact was made that you could steam roll over any other civilization. I see Exo-Stellar Civilizations with a similar potential.
Issac Arthur is going to be mentioned in future archives as one of the most powerful futurists and theorists, and a great all around person.
Amen, brother!
We would use the word "Influential" instead of "powerful" but yes you are right.
Although vast majority of what Isaac is talking about isn't new.
he's already among the greatest SciFi writers in Wikipedia
edit: Isaac Arthur is a futurist, not SciFi writer. my bad. he doesn't even write stories.
@@meneither3834 It’s very difficult to have a completely original scientific idea that no one has considered before.
Isaac does great work by popularising and discussing these ideas.
@@randomguy4167 and concentrating them too.
It's currently 0:29 AM here in Singapore. My question: "What Sleep?"
4.56am Australia, I feel your pain.
Fell asleep on my desk at 3am mid-video here in India. Woke up at 8 and just continued watching xD
4:19 AM
00:52 am in west coast usa.
answer I don't know either
An American city took two years and spent 500k to build a bike rake. Megastructures are a while a way
It took nothing to build it, all that money was for the vacation time for the planners. Wouldn't want them to get stressed would you?
Yep. If you want a country to do something you should look to China. I have a feeling corporations will just keep on getting more and more powerful in the US.
Yep. If you want a country to do something you should look to China. I have a feeling corporations will just keep on getting more and more powerful in the US.
@@MrNote-lz7lh This most OBVIOUS and essential thing is NEVER mentioned on this channel! Not by the host, and by very very very few of the guests. Most of us seem to be thinking that there will one day be some kind of king of Apps, that we'll just point and click and then presently we'll be mining asteroids... and SO ON. The idea of a mass organization occurs to NOBODY here, but you. This is a great responsibility, I hope it is not too much for you to bear! LIBERTARIANS in SPACE is what we're talking here, week after week. I do love the videos I have to say, but all the discussion is basically insane.
Exactly the same everywhere where did the money go?
Orion's Arm finally got mentioned in this channel! I wondered if he knew about it. It is a very recommendable collaborative sci fi universe for anyone who likes Isaac Arthur videos.
He's listed as a person who wrote for the scenario on some oages and in it's authors list.
Imagine living near a star
-This post was made by the exo-stellar gang
👏 👏 👏
Imagine living in a galaxy lol.
-This post was made by the exo-galactic gang.
Imagine living in the universe
-This post was made by the exo-dimensional gang
imagine living...
-which gang made this?
@@daerk420666 undead gang
Got to watch it on nebula yesterday, on my birthday! Thanks it’s always a great SFIA Video!
Happy birthday Tariq!
@@isaacarthurSFIA thanks!😄
Happy Birthday Tariq!
My dad introduced me to your channel. One of our favorite pastimes is to smoke a joint and launch ourselves into the future. Keep up the good work!
what about a drink and snack
@@u92element4 That probably follows the Fatty... 😁
A great father/son activity!
@@u92element4 nerd!
@@escape1777 hehehehe
I remember when all we had in UK was three tv channels and Sunday night TV was special. Well now it's special again thanks Isaac!
These episodes sure are special! (Usually it's Arthursday though;) )
yea yeay yea, tell it to the 16 quintillion human sims in the birch world in a few trillion years.
I love how Isaac keeps saying “you’re gonna need this and that to build your O’Neill cylinder” like I’m actually going to be doing that. Thank you for the undeserved confidence boost 🙏🏻
If it were possible to convert heat directly into laser light (see Sun Diver) an interstellar craft would hide their heat by beaming it out in one direction where observers are unlikely, or so far away they cannot affect your foreseeable future.
I havent been this early since my vacation to Pangea.
"I havent been this early since my vacation to Pangea." That's still not nearly as early as the folks who set up the hotel.
How was that vacation? I was thinking of visiting myself?
@@annoyed707 Actually i went camping.
@@Cherrynasb nice, never saw another person. The landscaping could have used a bit of clean up but very private.
Don't wanna be this guy but:
If you're talking about the super continent Pangea, how would that work?
Its one big landmass, saying you made a vacation on Pangea is like going from Colorado to Florida and saying you went on vacation in America.
Maybe you're talking about traveling back in time to the time when Pangea still existed but then the joke wouldn't really work.
idk
an idea for some of your mid-month bonus vids : an omnibus of miscellaneous facts and tidbits left out due to editing for time of other episodes, or a collection of things that were too short to make a full video of on their own
here's an idea thats been bugging me last night : Aliens that build illusory walls around a system with sentient life making no contact and treating it as a sanctuary as they harvest the rest of the stars.
Pretty impossible. Illusory walls would easily discovered by any civilization like ours because of our powerful telescopes. Illusory walls wouldn't be able to replicate fake planets around all the fake stars (light dimming) and gas composition, infared, etc all at once for all the stars we can observe that with telescopes like Hubble. Its just too much to fake let alone construct. They'd also have to create illusory gravitational lensing and a ton of other things.
Much less effort to annihilate the civilization or just do nothing because they wouldn't be able to lift a finger even if a early space civilization like ours discovered some super mega civilization is literally harvesting whole stars.
@@Leo-ip3yx hypothetically, maybe our system was located inside their star farm. they harvest and grow stars at the same time while our low tech asses are just sitting in the middle of it and they just dont want to bring harm to us so they build an illusory picket fence out of courtesy.
@@madmanpete I once heard something similar but there weren't walls just very good holograms.
@@fanuluiciorannr1xd212 holograms - thats the word i was looking for. these aliens are counting on our low tech for them to deceive us visually, until of course until we perfected space travel.
Future: Coronal gas grazed by a coronal cow made into a coronal steak.
I really hope some writers and game developers get inspired by Isaac. I have been wanting more games and shows inspired by real science.
Ex-wifes, you forgot ex-wifes --- "...avoiding the law, taxes, or self-replicating killswarms..."
I'm glad I paused this to make a grilled cheese, fill a bowl with leftover salad, then grab a bottle of seltzer.
Drink: Check.
Snack: Check.
ADD meds: Oops. What did I just watch?
I just a TNG Season 6 episode where they encounter a Dyson sphere. Pretty cool
Relics.
For habitats and other structures, why not collect organic biomass and ferment to make methane? Crack the methane for hydrogen, you have a homegrown fuel source that is continually renewable.
This really is the best of TH-cam. Bravo as always...
May All the Cosmos bring peace and love to you and your loved one .. Thanks for your info and vision !!
The red thing at 6:04 scared me cause I thought it was about to crash into the cylinder. It’s almost like depth perception is hard on a flat screen.
No time for a drink and a snack. Let's goooo!
Don't worry, most people consume more calories than they need anyways. I never get a drink or snack.
Thank you for your work!
I think I heard on NPR this last week (I live in Northeast Ohio so it was WKSU, so maybe they do know your actual birthday) that March 9th was your birthday.
If so HAPPY BIRTHDAY and Best Wishes.
Nice to see some love for Orions Arm and DWIZ ❤️
Actually we are on the Orion spur of the Percius arm. Just saying....
And nice neighbor of Thuban, Andromeda, and Tau Ceti...
Imagine the kind of energy available if anyone figured out total mass to energy conversion. And not just chucking stuff down a black hole, I'm thinking something more clarke-tech.
happy to see interstellar gas collection! it always looked like a lot of useful materials that are continuously lost to space whenever thing leak or when spaceships travel around
Thank you for the work you do, Mr. Arthur. Having you here makes our world better.
17:50 Tricky part of fusion for us is largely keeping the plasma hot, something which space would help it two fold just off the top of my head making it so easy a baby could do it in space. First and foremost here on Earth we must contend with Atmosphere, Gravity, and Electromagnetic fields of our environment. This makes preventing the Plasma from touching the side cost considerably more than it would need to on Earth as the near perfect vacuum would be created in Space with almost Zero energy cost on our part. Further more the larger we make fusion reactors the easier it is to hit the break even point hence the reason we just keep going bigger here on Earth and in 30 years will reach break even point ;) . In space, when our Reactor could literally be made the size of a small astroid if we wished something as Basic as a Fusor design for Fusion would be more than enough to rapidly reach break even as the Time periods for Ions and Electrons to get from one grid to the other means we could run them in a Pulse mode such that packets bounce back and forth far easier. We would likely even be able to make it multiple layers of Grids in the Future timing them in such a way that the packet automatically avoids the inner grid through electrostatic repulsion( the number one damper in small fusors) . It would be simple, You Have the Grid charged with a Negative charge so it attracts the Positive Deuterium and just as the packets are passing through the grid you shut it down for brief instance then reverse charge such that it now uses repulsive forces to push towards another inner grid gaining power from the positive and negative electrodes. It Literally would be a small sun just sitting there in space producing materials and energy for us all the time.
The calculations for collecting interstellar medium assume that relative speed of the collectors are are small, but if you shoot a high speed spaceship in the direction of a molecular cloud you can trade your velocity for collected material, and use higher density of the medium for a shorter deceleration path and smaller sizes for deceleration devices (the collector).
An interesting prospect in the local group intergalactic environment is the prospects of reaching Andromeda which is approaching the Milky Way as the galactic corona's of both galaxies are intersecting its low density but it offers a slower approach to getting to our nearest major galactic neighbor. There is also a higher density pit stop around a million light years out halfway between the giant spiral galaxies where the two coronal halos intersect compressing material and driving the beginnings of the star formation of Milkomeda. It is of course pretty far out and limited in terms of what is there now as we are only in the very early stages of the Merger but for an exostellar civilization it might very well be prime real estate You could not only offer boosts to colonists on their way to Andromeda but you also can be pretty sure you don't have any annoying neighbors to deal with.
The communication lag is quite awful however hence it would be for the I want to get away from everyone crowd. Exostellar space hipsters basically. XD
Insane timing on this vid Ngl there ⏱
5:30 The size of a ship or habitat might be estimated by the thickness of shielding it needs. I'd say this might be even 100 m or more depending on speed and radiation strength. So supposing the shielding might be just 1% of the diameter easily diameters of 10km are reached. So anything from oil tankers to sky scrapers might not be considered as it does not even meet shielding needs.
24:50 What happens though if they find a way to turn matter into the light? That’s about as matter less as you get.
Did the math, apparently if you took all the matter and energy of the entire observable universe, and crunched it down to a cube the density of water, it'd be only about 20 lightyears on a side, though given I was dealing with dozens of orders of magnitude, that could be off by a fair bit.
Thank you IA and team for making days a bit brighter
One feels that latency will be an issue when creating a galaxy-wide computer. Considering there are whole 'sets' of 'scales' equal to or larger than the scales we experience that are 'larger' than the galactic/filament scales that permeate our universe and that are effected by more forces it is more likely that our mastery of the quantum universe has more to offer in the future of computing
Isn't it possible that there are lots of planets with at least human like life., but because we (and they )can only see millions of years in the past from other planets, we (and they) keep thinking, "we are the only ones in the nearby universe"?
lets start tapping dark energy and just stop the expansion of the universe by depleting the dark energy.
I guess I have some vids to track down and watch, I wasn't aware of any amendment/compendiums of late. Life has had me rather distracted and I was going through the life in a colony series again, so maybe I just missed the memo, lol.
Great vids Isaac and crew. B)
I think it would be cool if black holes were created to pull everything in a galaxy tighter towards the centre and denser therefore easier to visit each place
that would be cool...
you just got yourself a like
It's just black holes don't work like that.
@@yastreb. would be cool tho if that’s how the simulation worked...
So there's still hope for Moonbase in Space: 1999 surviving out there!
a square kilometer per household sounds sufficient, live on the back of the mirror.
Never been this early! Hype! :D
Is this the first time that Isaac has referenced Orion's Arm?
He mentioned it a few times in older episodes
The Popuulation density problem does not exist with a waste heat using system which can grab energy from melcular motion. In principle those machines already exist.
I think the one area you haven't touched on yet (which to me seems a pretty obvious omission) is non-civilizational or post-civilizational intelligences. Solo intelligences, whether organic or machine/AI based. For instance, how about advanced technological beings which do not exist as part of a civilization? Or those which once were, but have been living as independent beings for a very long time.
This is after Peace on Earth and we're all working together in Harmony correct?
Or it's driven by competition or greed.
Realized these are also in podcast form a few days ago which is great, but i do miss the animatoons and pictures :
@Isaac, I absolutely LOVE your videos.
Thanks brother.......love the videos
Ah yes, another great day to have a drink and a snack with all of my brothers sisters and cousins of the great Isaac Arthur family! ☕ 🍰 🚀✨
I would still maintain that an Exo-Stellar civilization would be very hard to detect. There are brown dwarfs in our local stellar neighborhood we have only recently discovered, so a few thousand O'Niell cylinders may be too cold for us to detect currently.
Dust ? Gas ? Dark Matter ? Infinite Space ? Continual Abyss ? Far Beyond & further than that uknown Dimension 🌪🤔🌌🎆🕳
This soon? Amazing! This will be a good one :)
Who knows what could be lurking out there in the deep dark of space
15 minutes in, still talking about hydrogen/fusion..... despite doing a actual video on future Fusion and hydrogen he always finds a way of talking about it and every single video... I can't even remember what the video supposed to be about
Think could be why we see the cigar shaped craft? And if so would be possible to basically shield it rock so anyone like us that sees you we just think you're a giant rock from the outer solar system?
Hi Isaac Arthur! Which one will come first in human history "Moon base" or "mars base" ? What's your prediction?
according to his vids, Moon base.
Depends on which one Elon Musk & Yusaku Maezawa spend their money on.
@@TraditionalAnglican don't forget the Artemis Project, which is using SpaceX ships
Moon base for certain. Its out of the prediction stage now and in the pre-building stage, with massive industrial investment; 2024-2025 it will be online.
And the cost to visit will be about $2,500-$5,000 in current currency. Cheap enough to set up mass production for shipping back to earth.
RIP every single production industry. And every single economic theory.
@@allhumansarejusthuman.5776- Who’s going to set this up by 2024-25?!? NASA’s timeline has already slipped past 2026, and Artemis is slated to cost a total of $150B by 2028 (Constellation + SLS + Orion & ESM + Gateway + Suits, Habitats, Rovers & other equipment).
I don’t now where you’re getting the $2500-5000 figure from. SLS will cost $22,000/kg (not person) to get stuff to LEO & >$80k/kg to TLI. ULA costs about the same. SpaceX (Falcon 9 & Falcon Heavy) are $2000-2500/kg to LEO & ~$10k/kg to TLI. Even Starship won’t be able to get that down below $20/kg to LEO & $120/kg to TLI, & that’s assuming a best case scenario. Given that each person will require ~1000 kg, that gives you an absolute minimum cost of $120,000 to TLI, assuming an absolute best case scenario & no added costs for things like spacesuits, rovers, habitats & other supplies.
I agree that Starship will enable things not even the Falcon’s do, but it’s not going to be nearly as cheap as you might want to think it will be.
Before we colonise the galaxy,we should make mars bar a planet.
I am ready for a post scarcity civilization! I do volunteer work at the local food pantry. Whats the first step to owning nothing and being happy?
Me personally I think it'll be really nice if you make a video talking about how to colonize a desert planet or moon.
grabbed lunch, not just a snack & a drink, as Isaac Arthur is a great company.
Why not make a giant fiber optic cable for the ship to move through, all of the light focused at it would hit it guaranteed
Is it possible to digitize matter? To send it as data? I guess that's what teleportation kinda hha
Ok how about living on a planet in a red giant. So before the star goes red giant, build a shell around the planet to protect it. As the star goes red giant you could suck in its thin outer shell for fusion fuel. It would be hidden and there would be plenty fusion fuel.
at 1:26 is the Rick & Morty Citadel
fantastic episode
I see NOW Arthur seen that pitiful eXcuse FOR a movie Cosmic Sin so had to make his own version.
Very interesting. Very interesting
Whenever I hear your voice I imagine Elmer fudd in an einstein wig talking.
where is the poll?
So my question is.if you vacuum up these charged hydrogen atoms moving at 15k per sec ,where does that motion go ?into your ship?
I think it would be cool to basically drill into a decent size meteor and hollow it out and turn it into a starship
How about a fiber optic laser aiming system
You could also just make a second channel for posting whatever, it is common to just have it as a place for extra stuff that ignores the TH-cam algorithm
I got a drink and a snack! :D exostellar huh? we going to dark space this weekend?
This might be the end-goal, get an efficient machine running that uploads you into another dimension and if it needs some component in our universe, put it on a rogue planet with a moon, running on heat created by tidal forces.
I'm assuming that we got it wrong. It makes no sense to conquer a universe that will end, why do you need to have more space? Consciousness is here with you, another one at the other end of the universe is irreievant to your goals. The best solution is to have more time for yourself, that you can appreciate. So find a way to either loop time or make it infinite and if it needs to run on a computer/machine, you keep it as far away from things that have a finite and destructive lifestyle, stars.
It may even be technologically more feasible to figure out this type of time-travel than intergalactic space travel. I actually bet it is less energy intensive, maybe you just need to upload information to another dimension where time works differently, create a framework that for you to "live in" and upload your consciousness to that.
I think exo-stellar is the way to go. Also explains why we don't see any galactic civilization... expanding in space isn't infinitely sustainable, only expanding in time is when you find a way to loop it, become independent of time or move to a universe with more dimensions of time.
Can you provide a direct link for nebula users, just for efficiency purposes? Idk if TH-cam allows this or not.. just a suggestion
2333 and Isaac drops a video. RIP sleep.
Dude, you are a machine.
Where are your sources, Isaac Arthur?
I snacked big time...Don't give in to the Sirens lure of brevity.
The Galaxy is also spinning?
Hot Interstellar Medium Near You!
I have heard that if our black hole becomes active that life will be impossible. Is this true? If this is true would a O'Neill cylinder survive/
The episode was the prefect length! And I play it at .85 speed because my brain is slower.
Good morning gentlemen.
Saw the thing on Reddit coming here immediately
I've got my drink. My wife tells me we are trying " intermittent fasting" today 😞
I had a condolences pudding for you brother.
Wouldn't Hydrogen as fusion fuel rely on being able to contain it indefinitely, not something which can be done now?
You store it in magnetic bottles.
Hell yes.
Yes another video!!!!!!!
Them aliem baes be like: we just driftn, between galaxies, now that's hawt...
I would live out there... I would go TODAY!
FISSION. stop it with the solar lol jesus ive had enough already.