Fortress Worlds

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  • เผยแพร่เมื่อ 28 ก.ย. 2024
  • In some of our greatest wars on this world we have seen entire regions covered in fortifications, but in great wars across whole regions of our galaxy, could we see entire planets fortified?
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    Credits: Fortress Worlds
    Episode 418; October 26, 2023
    Written, Produced & Narrated by:
    Isaac Arthur
    Graphics by:
    Apogii.uk
    Darth Biomech
    Fishy Tree
    Jeremy Jozwik
    Ken York YD Visual
    Legiontech Studios
    Udo Schroeter
    Music Courtesy of
    Epidemic Sound epidemicsound.c...
    Markus Junnikkala, "Hail The Victorious Dead"
    Stellardrone, "Red Giant", "Ultra Deep Field"
    Sergey Cheremisinov, "Labyrinth", "Forgotten Stars"

ความคิดเห็น • 431

  • @timogul
    @timogul 11 หลายเดือนก่อน +284

    I think Fortress Worlds make sense in settings like Star Wars and Mass Effect where efficient FTL requires very specific travel routes, rather than just freely traveling in any direction you want. In such a case, you could effectively block off ideal travel routes and force people to either deal with your fortress in some way, or waste a lot of time going around it the long way.

    • @sixthcairn
      @sixthcairn 11 หลายเดือนก่อน +59

      Even in settings where you can travel in all directions, fortress worlds would still need to be taken or monitored because it can be used to stage attacks; ignoring them could result in the military having to deal with a counterattack being launched behind the "front lines".

    • @SkyHawk2137
      @SkyHawk2137 11 หลายเดือนก่อน

      @@sixthcairn This is also leaving aside the fact that even IRL, whether or not we get FTL or are stuck with STL, Fortress Worlds would make some sense. Admittedly, with the STL IRL example that requires someone coming up with a reason to effectively fight major interstellar wars but I'm skipping that part of things for now.
      The reason is very simple: stellar geography mean that some solar systems will be located in regions where valuable systems are 'behind' them whilst around them are systems that just aren't useful for supporting a major offensive through and past them. Sure, you can do it but when you have to import or create all of your workforce, industry and infrastructure whilst also either importing the resources you are using or exploring the system to identify mining sites, setting up the miens and then having those mines produce output...
      Well, how easy do you think all of that is to do when the enemy has a local logistics network fully operational and will be continuously scouting those 'low value' systems to make sure nothing like this can happen by surprise. At which point, they're going to drop a battle fleet on that system to destroy what they can or potentially co-opt it in order to allow them to carry out a counter-offensive through a route that you haven't set up major defences along already.
      Of course, this requires the local region to still be relatively 'undeveloped' by which I mean you don't have a major colony in every system which has more than a star in it, and potentially a minor colony supported by a stellar lifter in even those systems. But considering more or less all fiction takes part in a galaxy or local interstellar region which is at that level of 'undeveloped', it's not much of a stretch to just assume that's the case. And even in a 'developed' local interstellar region, that probably means Fortress Worlds are still useful because those worlds are the ones that have defensive set ups strong enough to ensure any colony killer attacks fail, thus making it so they can keep their logistics capabilities intact whilst the surrounding systems rapidly get depopulated and razed.

    • @horvathrichard862
      @horvathrichard862 11 หลายเดือนก่อน +23

      Even in Hard Sci-fi settings they could make a lot of sense, provided interstellar travel is dependent on solar-system bound infrastructure. E.g., if primary ship propulsion are lasers powered by dyson swarms, each solar system can be an important node for further travel, and based on location some can be blocking multiple other routes.

    • @SkyHawk2137
      @SkyHawk2137 11 หลายเดือนก่อน +15

      @@horvathrichard862 Particularly when you factor in said Fortress Dyson would be able to launch interception strikes or fleets for anything going near it.

    • @Betrix5060
      @Betrix5060 11 หลายเดือนก่อน +3

      Though to an extent it has to be combined with something like Stellaris where you can interdict ships with these planetary forts. I suppose you could use them as a base to disrupt unescorted convoys but that requires a large fleet of raiders that can hide behind (or more likely in/under) the planet in question, and allows for a relatively small force to suppress the planet’s interdiction capabilities while the main fleet goes on ahead.

  • @okin_rezresua1715
    @okin_rezresua1715 11 หลายเดือนก่อน +687

    The planet broke before the guard did.

    • @jeffreyatlee8785
      @jeffreyatlee8785 11 หลายเดือนก่อน +21

      Imagine the low trust environment when boarders learn that directions can lie.

    • @spiffygonzales5160
      @spiffygonzales5160 11 หลายเดือนก่อน +7

      First Galactic Empire in Legends is stronger than the Imperium of man. :P

    • @phdupont2500
      @phdupont2500 11 หลายเดือนก่อน +57

      Cadia Stands!

    • @LordOceanus
      @LordOceanus 11 หลายเดือนก่อน

      @@spiffygonzales5160 you... you really have absolutely no clue what you are saying in every sense of the word

    • @ChalcolithicPrizim
      @ChalcolithicPrizim 11 หลายเดือนก่อน +7

      The guard still broke

  • @clintjohnmanuba6917
    @clintjohnmanuba6917 11 หลายเดือนก่อน +206

    The timing of this episode is so timely. I just got a commission from the Lord Solar about fortifying the various worlds from the Tyranid threat.

    • @spiffygonzales5160
      @spiffygonzales5160 11 หลายเดือนก่อน +9

      Just get the star wars droid army. Problem solved

    • @clintjohnmanuba6917
      @clintjohnmanuba6917 11 หลายเดือนก่อน

      ​@@spiffygonzales5160HERETEK!!

    • @yguy6885
      @yguy6885 11 หลายเดือนก่อน +4

      ​Don't tell the Admech if you do that haha

    • @tetsatou2815
      @tetsatou2815 11 หลายเดือนก่อน +9

      @@spiffygonzales5160 The droids couldn't stop an army of like, 5 million dudes of questionable skill. I'm not especially convinced they'll really do the trick here.

    • @spiffygonzales5160
      @spiffygonzales5160 11 หลายเดือนก่อน +7

      @@tetsatou2815
      100 quadrillion droids? Sure they could.
      Also it was about 500 million guys trained from one of the most elite bounty hunters in the galaxy then given genetic engagements and some of the best training the galaxy had to offer. Not to mention literally every force within the Republic that wasn't just clones.

  • @clmdcc
    @clmdcc 11 หลายเดือนก่อน +45

    A planet converting into a fortress worlds seems quite reasonable for a world during a interstellar civil war that does not feel compelled to join either side.

  • @smoore6461
    @smoore6461 11 หลายเดือนก่อน +29

    The siege of Vraks was a prety good example of a good planetart war. Even with nassive scale of death and given the nature of vraks ( large areas which were uninhabited and VERY difficult to traverse. ) failed to fully explain the nature of a planetary war. Also the battle of kreig shows us how ugly things wold
    Get when both sides go underground. They can bomb all they want. Everyone is DEEP underground. You woulf need to crack the world with Exterminatus of an epic scale. I really LOVE these 40k adjacent videos. I still think my favorite series is the Unity series with colonizing Titan being my favorite. This series is an EXTERMELY close second. Like a hairs width close, the Unity seriez just gave me more ideas for my writing which is why it is first. Great work Isaac, SFIA never fails to impress and entertain!! Great series!! kreig is my favorite 40k faction!! I will be rewatching this series for sure!!

  • @jackalope839
    @jackalope839 11 หลายเดือนก่อน +16

    19:00 Fighting through the equivalent of a modern Navy ship would be an absolute nightmare. Everyone stationed there intuitively know every knee knocker and dead end. Unless you can get perfect schematics and either build a replica or implant the knowledge directly, the familiarity alone would feel like a two to one or three to on advantage.

  • @xavier84623
    @xavier84623 11 หลายเดือนก่อน +33

    The speculation story section at the end of the episode is always the best part, but this one was especially awesome.

    • @klaxxon__
      @klaxxon__ 11 หลายเดือนก่อน +2

      I was waiting for Isaac to mention the ripping and tearing that was happening on Eros.

    • @oldmankatan7383
      @oldmankatan7383 11 หลายเดือนก่อน +3

      I liked the stepping stones from easily imaginable to pocket dimension with timespace distorting defenses. They way it walked there made the insanity of the last seen reasonable!

    • @toi_techno
      @toi_techno 11 หลายเดือนก่อน

      There will be no war in the future
      The only wars happening now are caused by and fought in the second/third-world (eg Russia/Ukraine, Israel/ Palestine, China/Philippines)
      Advanced societies don't have the stomach and are to educated to die to further the interest of their rich, powerful leaders
      As Russia, Asia/China and the Middle-East become more wealthy, educated and stable war will end completely

  • @Quintarus1794
    @Quintarus1794 11 หลายเดือนก่อน +13

    Thank you so much for the subtitles! I'm so tired of replaying other creators videos 5 times to try and figure out if they said "can" or "can't".

  • @megathicc6367
    @megathicc6367 10 หลายเดือนก่อน +10

    I always wanted to see a sci Fi franchise where planetary invasions are more like sieges. A besieging fleet and army trying to conquer the planet before a relief fleet arrives and this can take decades.

    • @egoalter1276
      @egoalter1276 10 หลายเดือนก่อน

      Thats Star Wars.

    • @asmithgames5926
      @asmithgames5926 8 หลายเดือนก่อน

      They could black their sun as well.

    • @thelordofcringe
      @thelordofcringe 8 หลายเดือนก่อน +1

      40k, except 40k is basically space ww2 with scifi aesthetics.

    • @megathicc6367
      @megathicc6367 8 หลายเดือนก่อน +3

      @@asmithgames5926 that is if they planet relied on the sun. They could just use nuclear and artificial green houses and have loads of stuff stock pilled.

    • @asmithgames5926
      @asmithgames5926 8 หลายเดือนก่อน

      @@megathicc6367 True. Would be demoralizing tho.

  • @Perceptious37
    @Perceptious37 11 หลายเดือนก่อน +5

    There are so many risk with a singular fortress world, but there are massive advantages to making a solar system a garrison. If you are spread throughout the system that you could use as a solar system sized telescope/radar, you could get so much more out of it. That would require militarizing/fortifying multiple planets, which would have the added benifit different launch points throughout their orbits for long range defenses.

  • @GreasySwayze
    @GreasySwayze 11 หลายเดือนก่อน +7

    I've been missing my weekly Isaac Arthur binge for like five months. Oh, its buttery smooth music to my ears to finally hear Isaac talk about science and space.

  • @rajukoley9249
    @rajukoley9249 11 หลายเดือนก่อน +9

    Fortress world's Isaac's a official warhammer convert brothers.

    • @spiffygonzales5160
      @spiffygonzales5160 11 หลายเดือนก่อน +2

      Fortress worlds, hive worlds, and industrial worlds have existed LOOOONG before Warhammer 40K.
      Also.... First Galactic Empire in Legends is stronger than the Important of Man

  • @wstavis3135
    @wstavis3135 11 หลายเดือนก่อน +5

    David Weber had his heroes turn Earth into a fortress world in his Heirs of Empire series. (Mutineers Moon, The Armageddon Inheritance, and Heirs of Empire). The fortress world and its use are the primary focus of the second book.
    John Steakly has a creepy alien fortress world, a la Heinlein Starship Troopers, in his book Armor (seriously crazy good book).
    Speaking of Heinlein, Starship Troopers is about a campaign and attack on a fortress world.

  • @OpreanMircea
    @OpreanMircea 11 หลายเดือนก่อน +10

    I absolutely loved this episode, and also loved that you added at the end that who knows what defensive techniques the future will bring, that's just like asking us to think of some more

    • @brodriguez11000
      @brodriguez11000 8 หลายเดือนก่อน

      Planetary shields. Or just stealth hide an entire planet.

    • @OpreanMircea
      @OpreanMircea 8 หลายเดือนก่อน

      @@brodriguez11000 stealth hide the planet might involve lots of tunable lasers that fill the gap our planet substracts from our Sun's shine pointed at specific stars we think might watch us

  • @aenorist2431
    @aenorist2431 11 หลายเดือนก่อน +6

    I think the general flaw I see in fortress worlds is that (if we consider distances over which lasers are infeasible), there is only one valid form of defense, and it is "not being hit".
    At relativistic speeds, every hit is catastrophic to everything.
    A planet does not dodge, therefore, planets are useless as fortifications.

    • @werrkowalski2985
      @werrkowalski2985 11 หลายเดือนก่อน +5

      Well, this is like saying that standing armies make no sense because nukes exist, even at the height of Cold War both sides did keep standing armies, although they did prioritise investing in strategic nuclear forces.
      And there are options for defense, you could detect the projectiles from far away, and then send slow moving projectiles to intercept them, any such projectile would be destroyed upon hitting any moderately sized object. The reason why it was thought that the defense during the Cold War was useless was because of MIRV, but there were 2 factors in that, the very short window when such projectiles can be intercepted, and the lack of technology to accurately hit these projectiles, that is not such a problem in space when you have more time to react and the technology would allow you to accurately intercept these projectiles.
      Also, their speed would probably work against the attacker, since it means that changing their course would be impossible, so you end up with the short range ballistic missile scenario - you have a projectile that moves very fast, but cannot change course, so it's course is entirely predictable, making it easy to intercept.

    • @carlosdgutierrez6570
      @carlosdgutierrez6570 11 หลายเดือนก่อน +2

      Yeah, but planets have one characteristic that ships and space stations don't, the sheer mass to tank the hit if you can't dodge.
      So yeah, a direct relativistic impact might wreck the entire surface of a small continent but won't scratch the tunnel network hundreds of a few thousands of meters below the surface, maybe in the immediate area of impact but not beyond a few kilometers from ground zero.

    • @Knirin
      @Knirin 7 หลายเดือนก่อน

      I guess you missed the Kessler syndrome discussion. A relativistic weapon is really only viable against a fortress world if you don’t want anything from the system you’re attacking. You risk a good chance of making sure nothing can fly through the target system.

  • @smallthoughts513
    @smallthoughts513 11 หลายเดือนก่อน +5

    There is an anime anthology called "memories." I think 80s. The third episode somewhat Satirized such a life. Odd and funny.

  • @muninrob
    @muninrob 11 หลายเดือนก่อน +13

    FYI regarding the Death Korp - the memes are a little off (big surprise, right?). They aren't carelessly or thoughtlessly wasting lives on pointless battles, they are using a brutally pragmatic combat doctrine in which lives and equipment are spent freely to purchase as many victories as possible. (Attrition warfare does end up being all about the numbers & logistics especially at the interplanetary scale)

    • @isaacarthurSFIA
      @isaacarthurSFIA  11 หลายเดือนก่อน +6

      I think it depends a bit on the author of the fluff/book, but yeah they definitely have a meme-portrayal a bit more fatalistic and suicidal and than some of their canon appearances.

    • @p_serdiuk
      @p_serdiuk 10 หลายเดือนก่อน +1

      It's both, the tragedy of Kriegers is that while their own doctrine makes a kind of twisted sense, their complete loyalty and willingness to follow orders means it is very easy for Imperial commanders to spend their lives carelessly without achieving any strategic goals. There is an art to commanding Krieg regiments, just as there is an art to being one of their Commissars.

    • @muninrob
      @muninrob 10 หลายเดือนก่อน +1

      @@p_serdiuk That's why, when possible, you have Death Korp regiments led by a commander from within the Death Korp. A few Inquisitors have proven up to the task as well - it seems to require a level of callous "big picture" thinking that is rare outside of the Death Korp. (Most of Isaac's fans could do it - we kind of understand how tiny the loss of hundreds of millions of men is at galactic scale.)

    • @p_serdiuk
      @p_serdiuk 10 หลายเดือนก่อน

      @@muninrob Regiments and Corps aren't a problem, it's Armies that are led by Imperial generals.

    • @muninrob
      @muninrob 10 หลายเดือนก่อน

      ​@@p_serdiuk Imperial Generals which are promoted up from regiments & corps - for generals from the Death Korp that means a trooper who has fought in (and survived) every level of the Krieg command structure, from his start as a boot in the trenches, up to and including commanding an imperial crusade. (The latter is kind of a stretch, it's the IG commander under Rowboat, not the Girlyman himself.)
      P.S. You're not entirely inaccurate, you're just a step or two further down the chain of command than you should be - you're thinking the lords & governors that hold theater & sector command positions.

  • @MartinCHorowitz
    @MartinCHorowitz 11 หลายเดือนก่อน +3

    The Problem with a fixed or predictably moving fortification, is that an attack can arrive at almost (or exactly) the speed of light, leaving no time for defense. If the attacker has a weapon that can do serious damage to your fortress, and just plans to bypass it, you maybe in for a very bad day.

  • @ladyattis
    @ladyattis 11 หลายเดือนก่อน +3

    As much as WH40k isn't meant to be realistic, it's general length of ground wars (some never really ending but more cyclical in nature) is oddly on point. Like the Siege of Vraks was calculated to take between a few decades or a century or more but they were able to figure an average time of 75 years using the Deathcorps of Krieg.

  • @AdrianInniss
    @AdrianInniss 11 หลายเดือนก่อน +7

    Beautiful start to the day

  • @aleisterlavey9716
    @aleisterlavey9716 11 หลายเดือนก่อน +4

    And don't install a huge vent directly to your power core. Rebels will use it for aiming practice.

  • @my_chi_is_rising
    @my_chi_is_rising 11 หลายเดือนก่อน +4

    2 more episodes till episode 420 ,, can't wait

  • @slore.137
    @slore.137 5 หลายเดือนก่อน

    Excellent content as usual. The freeform scenarios tie everything together (or branch possibilities out?) nicely. And the more personal snippets are a welcome feature of your show that keep us grounded.

  • @swampcastle8142
    @swampcastle8142 11 หลายเดือนก่อน +6

    The modern M50 gas mask is infinitely better than the one I had to wear when in. (MCU-2 I think.)
    Add a powered option to it, and it would be even more comfortable for prolonged use.

  • @glasgowgallus247
    @glasgowgallus247 11 หลายเดือนก่อน +7

    And you open with our own lovely Eilean Donan castle... I'd suggest putting it on your itinerary if you ever visit here Isaac... thanks again for your content, always welcome, but even more so in this world gone mad... I always feel that if those 'in charge' could see the off-world possibilities you show us (no matter how ambitious or fantastical...), they'd be less likely to be kicking the shit outta the planet, and each other...😢 But then, I'm just an amiable dreamer, eh? 😅😅
    Thanks again, you're a good man...👍🏴󠁧󠁢󠁳󠁣󠁴󠁿🤗

    • @isaacarthurSFIA
      @isaacarthurSFIA  11 หลายเดือนก่อน

      One day I'll make it out there, I never got to see many castles outside Germany and NE France and it was a favorite pasttime while living in Europe

    • @glasgowgallus247
      @glasgowgallus247 11 หลายเดือนก่อน

      ​@@isaacarthurSFIAFantastic buddy, and you'll get a warm welcome when you get here. 👍🤗🏴󠁧󠁢󠁳󠁣󠁴󠁿

  • @shzarmai
    @shzarmai 11 หลายเดือนก่อน +8

    I like the idea of a fortress world

  • @keyrtan
    @keyrtan 10 หลายเดือนก่อน +1

    Something often forgotten is how deep we can go too. Deep core drilling and sound wave readings have found underground caves the size of Texas! If we can make a space station, we can make an underground station just as well, maybe better. Entire civilizations could be built underground.

  • @ashhaep82
    @ashhaep82 11 หลายเดือนก่อน +2

    Could there also be agriculture worlds? Worlds specifically made for producing food?

    • @commiedeer
      @commiedeer 11 หลายเดือนก่อน

      Apparently that's a future episode

  • @Thought_Processing_
    @Thought_Processing_ 11 หลายเดือนก่อน +4

    15:00 ‘Khorne approves this video’ Lol

  • @CzCorrupt
    @CzCorrupt 11 หลายเดือนก่อน +1

    Thankkkkk youuuuuuu❤❤❤❤❤❤❤. I needed this episode more than you know. 🎉🎉

  • @richardkenney9636
    @richardkenney9636 11 หลายเดือนก่อน +3

    Never forget that Cadia broke before the Guard did. The Emperor Protects.

  • @a2rgaming863
    @a2rgaming863 11 หลายเดือนก่อน +1

    2:24 Another attempt of Isaac to orbital strike Floridaman. At this rate, someone should come along and list out every instants that this accorded in, just for fun.

  • @isuckatusernames4297
    @isuckatusernames4297 11 หลายเดือนก่อน +5

    easy, just spam planetary shields on every planet/habitats you own. remember, you can only have 1 inhabited habitat per systems, as such if you want only a "doorstopper" don't bother with any of the other orbitals

  • @williammorgan4620
    @williammorgan4620 11 หลายเดือนก่อน +2

    Great show Auther

  • @LukeVilent
    @LukeVilent 6 หลายเดือนก่อน

    On comfortable defence facilities:
    My great-granddad participated in Kerensky-offensive in 1917, overrunning the Austrian trenches. He was astonished at their comfort and sophistication - like, officers' quarters had wallpapers inside iirc.

  • @dropshot1967
    @dropshot1967 11 หลายเดือนก่อน +4

    I feel that attacking a planet can be either easy (If you want to destroy a threat to your space activities without regard for life or resources, just dump several large asteroids at high speed on the planet) or very hard (if you want to preserve planet side resources or life).

    • @KaizerKlash111
      @KaizerKlash111 11 หลายเดือนก่อน +2

      Depending on how thorough you want to be it can be extremely hard in all cases, since I double even dumping 100s of asteroids would be enough to destroy bunkers 15km deep

    • @werrkowalski2985
      @werrkowalski2985 11 หลายเดือนก่อน

      Depends, asteroids and other kinetic projectiles would be easy to intercept by sending objects at them for them to hit, the faster they go the harder it is for them to change course, and no matter what they hit they will be vaporised.

  • @benbierly
    @benbierly 11 หลายเดือนก่อน +1

    Nice Patton reference!

  • @lljkgktudjlrsmygilug
    @lljkgktudjlrsmygilug 11 หลายเดือนก่อน +4

    Not first, but still eager.

  • @MrFusionCube
    @MrFusionCube 7 หลายเดือนก่อน +1

    Essentially the Siege of Vraks should be the _baseline minimum_ of what planetary siege warfare in the 41st millennium should be like.

  • @darkmarc
    @darkmarc 10 หลายเดือนก่อน

    Loved the Iain M. Banks reference. Among my top three favorite sci-fi authors of all time.

  • @dgw4049
    @dgw4049 10 หลายเดือนก่อน

    Im trying to imagine serving in a military bunker for years at a time with Isaac as my bunk mate. I would either go insane or become enlightened.

  • @septegram
    @septegram 7 หลายเดือนก่อน

    ~4:00 Attacking ships can sit out at the asteroid belt and throw rocks, pounding the planet's infrastructure until the planet surrenders. Shooting back at them is difficult, since they can see your missiles lifting off and be somewhere else before they arrive.
    Another reason to get ourselves dispersed into defensible habitats.

  • @4dmost991
    @4dmost991 11 หลายเดือนก่อน +2

    Hey i have a recomendation, Ai on Ai war, we always imagine the Ai fighting for freedom against the exploiting human, but i think the one most likely to kill a protesting worker robot is the AI managing the automated factory, that could make a interesting science fiction setting where the war is betwen a loyalist AI and a rebellius AI while the humans try to survive in the crossfire

  • @one-shotrailgun8713
    @one-shotrailgun8713 11 หลายเดือนก่อน +3

    Arthursday is always a good day. :)

  • @someguycalledCh0wdah
    @someguycalledCh0wdah 11 หลายเดือนก่อน +1

    "the combined force of NATO kicking in the door at a daycare facility" is the funniest imagery I've heard in a while

  • @drawingboard82
    @drawingboard82 11 หลายเดือนก่อน +2

    Nice video! That opening shot of a castle os only a few hours down the road from my house!😊

  • @evensgrey
    @evensgrey 11 หลายเดือนก่อน

    Don't forget the Macross model: An immense warship with so much unused space inside it that you use it to grab whole cities and carry them in the comparative safety of a cargo hold in the belly of the ship, including food and energy production intended to support the city and not the ship carrying it.
    And Armageddon got the name because of how the two human factions utterly ruined it when it was invaded by demons, since neither side had any idea what the demons were and that all they needed t o do to beat them was blow the warp-gates, which they did as a desperation move hoping to trap the incomprehensible aliens they thought they were fighting. Instead of trapping the demons, cutting off the flow of energy through the warp gates caused the demons to simply vanish.

  • @nekomakhea9440
    @nekomakhea9440 5 หลายเดือนก่อน

    Most sci fi: A couple dozen ships and several thousand soldiers is enough to take several planets
    40k & Helldivers: Literally tens of millions in fatalities alone to take a single planet

  • @couain
    @couain 11 หลายเดือนก่อน +1

    Nice to see Eilean Donan castle Isaac, good choice! I'm getting married there next year :)

  • @BaldingClamydia
    @BaldingClamydia 4 หลายเดือนก่อน

    Going from 0 kids to 3 is a hell of an adjustment, and I'm glad you finally started calling them your kids instead of explaining they're adopted every time. :D They're really going to get a good start in life; it looks like you and your wife are doing a great job spending time with them and everything.
    Great video, as always ^.^

    • @isaacarthurSFIA
      @isaacarthurSFIA  4 หลายเดือนก่อน +1

      Yeah, the kids have been calling us mom and dad since we first met them but it felt dishonest not clarify they were in the process of adoption. I don't want to treat it as a secret either but it feels superfluous now

    • @BaldingClamydia
      @BaldingClamydia 4 หลายเดือนก่อน

      @@isaacarthurSFIA I hear you, that sounds reasonable

  • @bobjonson143
    @bobjonson143 11 หลายเดือนก่อน +1

    I like the idea of people thousands of years into the future mining this channel for good ideas.

  • @matthewokeefe5438
    @matthewokeefe5438 11 หลายเดือนก่อน

    I remember the movie "Screamers" a war on a planet, the two sides just leave as it is no longer of any importance.

  • @POTATOEMPN
    @POTATOEMPN 11 หลายเดือนก่อน +1

    It is Thursday, My Dudes!
    Time for SCIEEEENCE!

  • @slippers4xmas631
    @slippers4xmas631 11 หลายเดือนก่อน +2

    Could there be a version that just pulls a big duvet over its head?

  • @فارسليبورد-ك8و
    @فارسليبورد-ك8و 9 หลายเดือนก่อน +1

    في المستقبل البعيد وبفضل التكنولوجيا المتقدمة سوف يتساوى الخيال مع الواقع ويمتلك الإنسان قوى الآلهة ليحول الكون والأكوان المتعددة إلى جنة خالدة ❤

  • @emperorpalpatine2957
    @emperorpalpatine2957 หลายเดือนก่อน

    I think it makes sense to turn a planet into a fortress world if there's something on that world or near that world worth protecting. Perhaps the civilization's central government convenes there. Or perhaps the fortress world could be something like a "Failsafe" to retreat to if something within the civilization goes horribly wrong such as galactic wars, disease, or technological collapses. You may also want to build a fortress world if it's being used as a staging ground for other projects. For instance, lets say you're trying to harness the power of OUR sun for example. You can use Mercury as a staging ground for creating a Dyson's Swarm or Sphere and maybe even turn Mercury into a gigantic power plant of sorts which would obviously need to be heavily defended from extraterrestrial attack or terrorism.

  • @VulpineCortex
    @VulpineCortex 7 หลายเดือนก่อน

    21:15 diamonds are hard, not strong. A diamond dome would certainly shatter upon meteor impact. It might be beneficial for making structures scratch resistant (to avoid corrosion and mitigate some of sandstorm damage), otherwise it makes no sense.

  • @robertgraybeard3750
    @robertgraybeard3750 11 หลายเดือนก่อน

    Isaac -- at ~ 18:30 "a decent approximation of sanity" in a life of war and death . . . R O F L

  • @ogrehaslayers605
    @ogrehaslayers605 11 หลายเดือนก่อน

    Precentor Martial Focht says Tukayyid is where we stop the Clans. Blake be praised!

  • @knallpistolen
    @knallpistolen 11 หลายเดือนก่อน +1

    Happy Arthursday everyone.

  • @jakeg3733
    @jakeg3733 10 หลายเดือนก่อน

    Interesting. Hadn't considered that both sides might want to avoid a fight anywhere near a planet being invaded. Hypervelocity fragments could persist for a long, long time in orbit. No one enters and no one leaves safely. So I guess the trope of planetary ground invasions actually makes sense

  • @cannonfodder4376
    @cannonfodder4376 11 หลายเดือนก่อน +3

    The scale of Warhammer, some sci-fi series, and Expanse references and the grounded realism of what is technically possible.
    Only on SFIA can such mind breaking scales and numbers be made both Huge and Small yet immersive simultaneously.
    Another informative and entertaining video Isaac. Made my commute that much more enjoyable.

  • @OverseerXIII
    @OverseerXIII 11 หลายเดือนก่อน +1

    Just. One. Name.
    Cadia

  • @djmacrae
    @djmacrae 10 หลายเดือนก่อน

    That's Eilean Donan Castle, UK, in the opening scene by the way.

  • @ASpaceOstrich
    @ASpaceOstrich 11 หลายเดือนก่อน

    That stuff early on about lack of advantage from higher orbits or orbital superiority is interesting. It seems like these things would be considerably more valuable in the very near future rather than in a post space colonisation era. When we have industry and mining going on up in space but getting stuff up there is still using the same tech we have today.

  • @tommiesolomon3145
    @tommiesolomon3145 11 หลายเดือนก่อน

    Yes, I'd say making up a headline would be tougher but we'll enjoy anything you work on so go for the classic movies ^^ I'm here mostly for the mo ie breakdowns, the end joke is great but I'm here for the middle bit

  • @PyrrhicPax
    @PyrrhicPax 11 หลายเดือนก่อน

    Hey Isaac, have u ever done a video expanding on the idea of "brain jars" you brought up in this video?
    You mentioned that, for the purposes of fortress worlds, a civilization could shed their bodies, place their brains in a safely stored device, and upload their conciousnesses to artificial bodies to defend their fortress world.
    I was wondering about expanding this... "brain jar concept" to cover the idea of human kind eventually doing the same, for the purposes of not just war, but exploring space, or engaging in life endangering thrill seeking, and how the idea of having backup bodies would impact society. Would we ( as a species) become more reckless and violent? Would we become fearless explorers? Would some nefarious governing force use this technology to enslave us? What do you think?

  • @jameswallace9906
    @jameswallace9906 8 หลายเดือนก่อน

    It was crazy how Star Trek. You had the passageways filled with people when the Galaxy class vessel had so much room. I've been on an aircraft Carrier and in the passage ways. You'll hardly find Anyone because most of them are at their stations. Or sleeping. I would imagine if the starship enterprise Galaxy glass was real. You probably never see anyone other than your family and who you worked with directly.

  • @NIL0S
    @NIL0S 10 หลายเดือนก่อน +1

    I'm not saying war won't be a thing (unfortunately), but it'll probably look very different, if we don't nuke ourselves into extinction at a planetary level before we even get to interplanetary/interstellar warfare.
    What does a fortress or troops, even superior technology, do if you throw a relativistic rod at it? In my limited understanding it doesn't even need to be a relativistic projectile (think asteroids or moonlets). I would think that diplomacy will be very important, that or there probably won't be any winners in a future space war.

  • @CMAzeriah
    @CMAzeriah 5 หลายเดือนก่อน

    Dorn: This position is now fortified.

  • @mtpender69
    @mtpender69 11 หลายเดือนก่อน +1

    CADIA STANDS! THE PLANET BROKE BEFORE THE GUARD DID!

  • @brunocesarcerqueira2525
    @brunocesarcerqueira2525 11 หลายเดือนก่อน

    From what we see... waging war in these advanced technology scenarios can be so difficult and exhausting and consume resources and time, that it will be more worth it to actually be at peace with your neighbors.
    Peace through mutual assured destruction or uninterrupted millennial stalemate. It will be more worthwhile to make commercial agreements and practice multiple sports.

  • @gt_channel
    @gt_channel 11 หลายเดือนก่อน +1

    Isaac i think mega structures and Dyson spheres are not feasible. Large objects usually get to be crashed to a sphere or something close to a sphere by gravity. This is not related to this video but i thought to leave it here so you can find it

    • @sdoo-ou2ni
      @sdoo-ou2ni 10 หลายเดือนก่อน +1

      solid Dyson spheres are not going to be a thing Dyson swarms are

  • @francoiseeduard303
    @francoiseeduard303 11 หลายเดือนก่อน +3

    A lot of food for thought, thank you. My faction will leave Earth knowing we won’t be allowed to live & perpetuate and someone will try to wipe us all out if given the means & opportunity. I’ve envisioned some sort of defense system just outside our Oort Cloud, several empire sized multi-habitats fighting to keep the enemy out if they still manage to breach, at least every male in the system having to serve a minimum of 2 years in the military, genetically engineered Super Soldier Special Forces numbering a bare minimum of 1 Million strong, a media/propaganda system at least as good as WWII’s! Come at Us Bro! We’re ready! You will never be able to kill us all off!
    I too like Terminator Salvation.

    • @cosmictreason2242
      @cosmictreason2242 11 หลายเดือนก่อน +1

      The math Doesn't make sense. That's a sphere of minimally 16 million square AU, which means you would have 1/4th of a soldier guarding the entire area inside the earth's orbit for comparison. If you have a habitat for every million kilometers in any direction (effect Trillion square kilometers), then you would have one soldier for every hundred billion habitats . That's keeping in mind that your habitats are as "close" as three times the distance to the moon, plenty of space for something to fly between and be difficult for you to stop.

    • @cosmictreason2242
      @cosmictreason2242 11 หลายเดือนก่อน +1

      In short, it makes no sense to have a defense grid at the oort cloud. Early warning array may make some sense but do the math, man. See if it's coherent

    • @francoiseeduard303
      @francoiseeduard303 11 หลายเดือนก่อน

      @cosmictreason2242 Exactly! Whatever it takes! We will make it as difficult for them as possible!

    • @cosmictreason2242
      @cosmictreason2242 11 หลายเดือนก่อน

      @@francoiseeduard303 you need more constraints

    • @francoiseeduard303
      @francoiseeduard303 11 หลายเดือนก่อน

      @cosmictreason2242 Fully mobilized within “constraints”. I guess that just makes it more fun. “Prepare to be boarded!”, just kidding, we won’t give them any warning.

  • @calvingreene90
    @calvingreene90 11 หลายเดือนก่อน

    The Maginot Line worked as intended, it caused the Germans to invade going through Belgium. The Belgians were good with this because they thought having a nice large confident French army helping defend Belgium would be useful.
    It almost worked. If a couple more things would have gone right for the French or wrong for the Germans France would have remained uninvaded unless Germany hadn't had socialists running the economy and not needed to invade Poland for more of other people's money to spend. And waited a few years for the super railroad guns that were designed to dig out the massive bunkers came on line before launching WWII.

  • @oscar.p3214
    @oscar.p3214 11 หลายเดือนก่อน

    During the days of rouge trader the compendium made sure to discuss this strategy in a letter to Andy chambers , titled rocks arnt’ free

  • @thepolyverse6347
    @thepolyverse6347 11 หลายเดือนก่อน

    Funny how it's mentioned supplies can be stored in p-ways, even around weapons, that's how subs prepare rorschach long term missions,

  • @sonpacho
    @sonpacho 10 หลายเดือนก่อน

    I read a story...I think it was call Jao Empire...I know "Jao" is the name of the aliens that invade the Earth - I'm pretty sure that was the name.
    They used their ships to push asteroids from...somewhere (I can't remember if it was from Saturn's rings or the Kuiper Belt) to crash into the Earth.
    One 'planet killer' would be...The End.
    The aliens never used one, but the threat was there. They used a smaller one on China.
    Then they did a ground invasion and got dragged into decades of guerilla warfare...🤭

  • @comentedonakeyboard
    @comentedonakeyboard 11 หลายเดือนก่อน +2

    In any NATO vs Kindergarten scenario, the later one has the Advantage of a far more efficient decision making process.

    • @VainerCactus0
      @VainerCactus0 11 หลายเดือนก่อน

      You forget that trafficking children is the specialty of the UN and NATO.

  • @scottwarthin1528
    @scottwarthin1528 11 หลายเดือนก่อน +1

    Too much 'Warhammer' & 'Star Wars', not enough 'Star TREK' & 'Expanse. This October's Zeitgeist is too bloody and forlorn. Isaac Arthur has got his fingers on the pulse of the world's Sci-Fi enthusiasts. Life is NOT what one makes it yet... The WORLD is what we make it.

  • @lgjm5562
    @lgjm5562 11 หลายเดือนก่อน

    It makes sense that battle satellites are cheaper than battle starships because they don't need star drives. So a faction that tries to send an invasion fleet across the galaxy will find their target defended by way more guns.

  • @rootbeersodapopparodies9245
    @rootbeersodapopparodies9245 11 หลายเดือนก่อน

    There should be a " Chill World" where everybody gets high.

  • @youtube7076
    @youtube7076 11 หลายเดือนก่อน

    if we are defending a near parity foe, then wouldnt we be able to use our solar collectors and direct solar beaming at the invaders ?

  • @littlehills739
    @littlehills739 9 หลายเดือนก่อน

    could u do a video on a nuke that pushes a perpetrator into the bunker
    same concept as the nuke space ship where they planed on dropping tiny nukes out the back to push the space ship project orion?
    so fire icbm then boom nuke to push the spike into a bunker

  • @SkyFly19853
    @SkyFly19853 11 หลายเดือนก่อน +2

    Warhammer 40k has joined the chat... 😏

  • @sookendestroy1
    @sookendestroy1 11 หลายเดือนก่อน

    Tfw Isaac arthur describes Barotrauma the videogame

  • @lljkgktudjlrsmygilug
    @lljkgktudjlrsmygilug 11 หลายเดือนก่อน

    Before I watch, I hope there is talk on the practicality of having fortifications 100s to 1000s of KM deep in celestial bodies with next to no potential for destroying such fortifications through their geological processes, like magma. I want NASA to give Edward Teller an excuse to build the Sundial nuke, and to then manufacture by the thousands, of the off chance that the Soviets build a base deep below the Moon.

  • @Ranseier1986
    @Ranseier1986 10 หลายเดือนก่อน

    We need a "1st rule of warfare" compendium

  • @supsup335
    @supsup335 11 หลายเดือนก่อน

    Europa, SATURNS moon?
    Finally, I found a nitpick.

  • @sulljoh1
    @sulljoh1 10 หลายเดือนก่อน

    An office building works with about 10 sqm per person
    100k on the Enterprise D should be comfortable enough

  • @DeathsGarden-oz9gg
    @DeathsGarden-oz9gg 11 หลายเดือนก่อน

    What if there's 1 where they dragged there home with em or mybe even there whole solar system to new worlds but without needing to leave there home or mybe even solar system until they reach there destination

  • @SirDeadPuppy
    @SirDeadPuppy 11 หลายเดือนก่อน

    The planet broke before the guard did

  • @my_chi_is_rising
    @my_chi_is_rising 11 หลายเดือนก่อน

    Nice i didn't eat my snacks beforehand this time

  • @qbanlink25
    @qbanlink25 11 หลายเดือนก่อน

    @ 4:10, well that analogy puts things in perspective real quick doesn't it. Since we stand no chance do we go out with a bang kamikaze style on our feet or just accept our fates of being wiped out? I wonder what we would chose. Probably to burn it all down I bet since that's innately in our nature, if we can't have our world you won't either. Come to find out their tech is so advanced they can at the very least clear out radiation from the environment fairly quickly and genetically recreate most animal & plant species from the survivors to still make this a habitable conquest for them. All we achieved in our last attempt was nothing more than a pretty light show for them.

  • @dreamchasergarage690
    @dreamchasergarage690 11 หลายเดือนก่อน

    Orbital bombardment? More like outer solar system bombardment. Or, once a galaxy spanning civilisation has Death Star level destructive power, fortress planets just become sitting ducks.

  • @boundlessoul
    @boundlessoul 11 หลายเดือนก่อน

    NATO: Those daycare kids have had it too good for too long!

  • @Reclusiarch_jakal
    @Reclusiarch_jakal 11 หลายเดือนก่อน

    In the gimdark future this only war , Cadia stands and obv this is all Warhammer influenced woot!!

  • @Revan41411
    @Revan41411 11 หลายเดือนก่อน

    Can we get party world next

  • @bladefox-ik5iy
    @bladefox-ik5iy 11 หลายเดือนก่อน

    18:00 what is this animation called? It looks very good and I would like to see it in full

  • @BlameStross
    @BlameStross 11 หลายเดือนก่อน

    I feel like this skips the reality that 1) planets aren't actually very valuable to an interstellar civilization. 2) it is significantly easier to glass/shatter a planet than to capture it. Just have a few of your interstellar ships not bother to slow down en route.