To give an idea of why this is so lets compare a Dyson Sphere vs. Dyson Swarm.

At Earth's radius from the sun (149,598,023km) a sphere has a surface area of of 2.81x10^17 square kilometers. That is roughly how much livable area you can get out of Dyson Sphere.

A O'Neil Cylinder has a usable area of approximately 325km. Lets say each cylinder, which is 32km at their longest, has a bubble 64km in radius around it for safety. That gives a volume of 1,100,000km^3 per cylinder. The Earth's orbit varies from closest approach to furthest approach by 137,390,500km. A shell that wide would have a total volume of 1.4x10^24 cubic kilometers. In such a volume you can fit 1.27x10^18 cylinders (with their bubble of clear space) with 325km^2 of land each for a total usable surface area of 4.14x10^20 square kilometers.

Or to put that another way switching from a Dyson Sphere to Dyson Swarm increases your usable living space by over a thousand fold. That is being generous since you can easily expand the size of the Dyson Swarm into lower and higher orbits while the Dyson Sphere isn't really expandable. That isn't even going into how constructing a Dyson Swarm is vastly simpler then a Dyson Sphere and more useful since you can use it from the moment you construct a single cylinder while a Dyson Sphere basically has to be completed before you can use it.

Basically only really advanced idiots would build it. So really it's the perfect thing for the Pak'leds to do. Well that and I suppose some really advanced civilizations might do it once or twice as a vanity project if they've got nothing better to do.
Dyson spheres get sunlight though, which is rather important. Those O'Neil Cylinders would need fuel.

But yeah, dyson spheres are not anywhere near practical.

In fact, remember that that ecumenopolis world was a very large one?

And that FTL teleportation, to get our captain from there to a nearby star, is flat our precursor tech at best?

I predict that planet is hollow, with a massive fusion reactor inside.

Not that that explains what they do with all that waste heat, our people would notice if the planet radiated too much of it.

Dyson swarms are, by nature, trivial to detect. You're lighting a massive beacon that not only advertises the level of technology you possess but also the precise location you can be found. Now, consider that every hyper-advanced civilization to exist in this neck of the woods is either dead, noncorporeal, or in hiding.

Perhaps there's a reason why those capable of erecting megastructures would be more interested in a Dyson sphere, which (in theory) could be concealed or disguised; at that scale, the Dark Forest might be more than mere Ittick-Ka insecurity.
A Dyson Sphere sends out a lightspeed image of a star getting dimmer and dimmer and then just disappearing. That will be noticeable and noteworthy for thousands of years.

It's a "Something weird is going on here, come and take a look" signal.
 
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Btw, I want to design more ships but ran out of ideas. Help?

Linking a post of mine from SDB to show you people some of the coming changes. Note, the new ship design rules are in beta currently.
2328 LC "Eris"
3 Years 1000kt +7% Ev +2% Pen 2O 2EN 2T 100BR 60SR
C6 S6 H6 L6 P6 E7 R7
Peacekeeping
A very simple and cheap design. The cruiser Centaur-B. It is 1000kt, and hits thresholds very well. Meant to be modular, you can build it as is or add 1-2 parts (and maybe change one) to make variants like these:

Combat variant: C9 S6 H7 L7 P6 E7 R7 +0/1/0 +20BR +20SR +0.25y
Response variant: C7 S7 H6 L6 P8 E8 R7 +0/0/1 +20BR +0.25y
Science variant: C7 S10 H6 L6 P6 E7 R7 +0/1/1 +20BR +10SR +0.25y
Presence variant: C6 S6 H6 L6 P10 E7 R7 +0/0/1 +20BR +0.25y


2328 HC
3.5 Years 1500kt +10.5% Ev +2% Pen 2O 3EN 3T 150BR 80SR
C8 S8 H9 L7 P8 E9 R7
Peacekeeping, Esp Ops
1500kt. Has a room for one more slot, but is already nicely flat and hits thresholds very well. I failed to improve it economically without unbalancing the statline so I stopped here, but if you want you can spend some crew and resources to add a few stats. Adding labs gives +2S for +10BR +10SR for example.


2328 HC-SP
3.5 Years 1600kt +7% Ev +2% Pen 3O 3EN 4T 160BR 80SR
C6 S12 H6 L6 P12 E8 R9
Peacekeeping
The peaceful response cruiser. Kepler Gs bigger brother.


2328 LE
4.25 Years 2400kt +7% Ev +4% Pen 4O 5EN 5T 270BR 140SR
C12 S12 H12 L8 P12 E11 R10
Peacekeeping, Esp Ops, Medical
An economical Light Explorer that fits in 2mt berths. Gave it all the capability, because we can not rely on rare Ambassadors for such missions, and Excelsiors will not last us forever. Removing the Medical complex also does not raise stats, and lowers BR/SR cost by only a little.
 
I think we need know where our current ships will end up stat wise before we can have any idea what future ships and refits should aim to be. I know everyone's still experimenting, but some of the big stats and low costs on proposed new ships make our current and old ships look woefully underpowered and inefficient.
 
Dyson spheres get sunlight though, which is rather important. Those O'Neil Cylinders would need fuel.
Um. O'Neil Cylinders have giant windows and mirror reflector arms to generate Earth normal levels of sunlight. While, IIRC, the original designs didn't have them I suspect a more modern take would also include large exterior solar panels to minimize the need for panels inside the habitat.
 
Um. O'Neil Cylinders have giant windows and mirror reflector arms to generate Earth normal levels of sunlight. While, IIRC, the original designs didn't have them I suspect a more modern take would also include large exterior solar panels to minimize the need for panels inside the habitat.
You can not collect more solar energy then through the use of a Dyson Sphere, as it collects all of it. Or Swarm I suppose.

Those O'Neil Cylinders would probably take orbit around a gas giant and fusion away I think.
 
You can not collect more solar energy then through the use of a Dyson Sphere, as it collects all of it. Or Swarm I suppose.

Those O'Neil Cylinders would probably take orbit around a gas giant and fusion away I think.
Or both. One open window swarm layer arranged to absorb nearly all of a stars light while looking like dust from a distance. Another layer of fully closed cylinders after that using harvested fuel for power to further increase living space. The outer layers could also double as fortresses to defend the inner layer while being supported by fleets of ships number into the multiple billions if the Dyson swarm builders wished to do so.
 
Hm, maybe the Preservers are off somewhere, a Neptune/Pluto orbit Dyson Sphere acting as a combination of subspace jammer to punt ships out of Warp and covered in enough defensive batteries to give the entire Borg pause simply from numbers, and filled to the brim with a Dyson Swarm made entirely of defensive batteries, with the inhabited planet inside being their actual home.
 
Regarding using a Dyson Sphere to hide. The first story I can remember using that idea was (I think) called Spinerette. The aliens had been in the process of building a Dyson Sphere around their home system, carefully tuned so that outside emissions mimicked a Red Giant.

Unfortunately whoever it was they hiding from found them before it was complete, so when the humans managed to backtrack the materials shipping, there was a mostly complete shell with a dead world inside.

If there was a follow up story that explored that further, I am ignorant of it.

Edit: the aliens were shipping metal in from other systems, while leaving their home world intact inside the sphere. I don't recall if the story said anything about other planets in the home system.

Edit: found a wiki page about it

Spinneret (novel) - Wikipedia
 
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2325.Q3 - Chains of Command
The bulkheads of Terminus Station are new and clean, but unlike those of any other station that space has to offer. A fascinating mix of multiple traditions has gone into its construction. The clean Federation lines and bold style is there, but so too is the morose Cardassian architecture. There are other flourishes too; the other species with a claim in the Gabriel Border Zone. But in a corner of the station's public promenade, in a quirky misshapen knot born of battle repairs slowly metastasised into permanent feature, the verisimilitude of the Federation and the Ashalla Pact is on full display. To the bartender, one old, careworn human with deep lines and sinking jowls, there isn't any other way he'd want it.

Right now he serves an Amarkian, a high-ranking officer at that who purposefully left the rank tabs back on the Hilindia. At his left elbow is the executive officer of the CDF Trager, long the most effective thorn in Federation sides. A set of Goshawnar enlisted hoop and warcry it up in the corner of the room long flutes of some viscous ferment raised aloft. A rather different Goshawnar, though, a slick-feathered political operator straight from Rha Lodkhan leans against the bar, sneering at his countrymen disdainfully. A Konen and a Betazoid play cards in a wicked game of bluff and double-bluff on a level the human barkeep is literally incapable of following. All this and it isn't even happy hour at Lance's Last Mistake, the favourite haunt of those in the know on Terminus Station.

Everyone who meets the barkeep, the eponymous Lance, knows him as a quiet man, but a man of unusual anecdotes and hard-won wisdom. A man whose advice is sought by passing merchanters, crews Pact and Federation, and station staff. But he'll tell any who ask the truth as he see's it. He's a blind old fool who thought he knew better than everyone else and watched it all burn around his ears. And that the worst fate of all is to get to sit back and watch as someone put the lie to everything he ever believed in.

No wonder the Klingons envy their war dead. Lance Cartwright sure envied his old conspirator General Chang from time to time. Usually after every Federation accession, or around the fifth glass of Konen brandy. There are worse fates than dying before you have to see yourself proved utterly wrong, he knows that now. And yet how sweet it is to watch the service his hubris nearly broke survive its harrowing before its political masters and now emerge, thirty years later, stronger than it ever was before. A Federation now so broad in its bonds of brotherhood that it could even afford a little patch of undiscovered country to a disgraced man trying to find his place in a galaxy that had left him behind. They sentenced him to twenty-five years, and now he can say that he deserved every day of them. Now the former Admiral Cartwright looks to have his little peaceful patch among those whom he still understands in his heart - those who ply the stars, and a chance to mend a soul betrayed only by itself.

-

It looks so different from down here. It's the atmosphere, supposes a man looking out over the Parisian dusk. It stirs things up, refracting into degrees the light that always seemed so clear when he was a man who trod the decking over an interstellar vessel. When he was appointed by the Council it was less to the command of a fleet and more as a glorified janitor to sweep up the shattered glass-shards his predecessor had left strewn across all four damned sectors of the Federation, such as it was at the time. The fleet was listless, bewildered. It should have been an unprecedented era of exploration, yet it had been all Solomon Rogers could do to stop one faction or another from letting it slip through the Federation's fingers. The politics in the time after the Khitomer Accords, by the great bird of the galaxy, what a time to be alive. What a miserable, turgid time. That he was appointed at all had been a wonder. Even now he still wonders back to the influence of the then junior Councillor Jorlyth sh'Arrath who broke open the voting blocs that would have stripped Starfleet of all independence and indeed, military capacity. Who then saw it handed to himself.

He still refuses to consider it a mistake on his part, but his time on the Council taught him much. No, he wasn't wrong, but he can see now how it all looks so different from down here. It's easy to slip into the political battle as the ends rather than the means. To think that the daily cut and thrust is the purpose of your job. You do your best to keep your fellow Hawks from that trap. It isn't easy, of course. Many of his old core colleagues in the Council were still there when he was fired, and didn't they fume to find out that one former Admiral Rogers has no intention of politely retiring to the antechamber of history to wait out his days. Well, he let them fume. He had more to say, and his maiden speech as a Councillor before this august body spared few and exonerated fewer.

And why should he spare the reputations of Councillors? How much of Kahurangi's success is due to the platform he laid. He brought the fleet back together again, reminded them that they have a purpose, that exploration, the pursuit of peace, and the protection of home, all give them a raison d'etre unbroken by the treason surrounding the Khitomer Accord. The fact that he could hand Kahurangi a functional fleet at all in the face of ongoing Council interference is proof that he was a far better Commander, Starfleet than the popular wisdom credits him with. Could he have gone on to have her success if allowed to continue in the role? Well, maybe not. Kahurangi was a brilliant leader, and Rogers has never let his frustration blind him to that. From his advocacy on Mars he saw first hand the things Kahurangi achieved.

Yet there is still some envy. If only his time didn't come right after Cartwright and then the rule of the Commissioners. If only this Earth atmosphere wasn't so blinding.

-

Across the globe and far from the beaten path the air is crisp and cold. There is a freshness and a purity scarcely known elsewhere in the world. There is a valley like a secret world apart from time where the craggy peaks plunge into the crystal-like lake surface while the green tree-tops crowd the far shore. In one corner of the picturesque lake there is a humble little house among rocks and a natural wading pool. An old woman sits next to the lakeside with a line cast into the lake, so clear she can watch the fish as they each take their turn to assess the offering on the hidden hook and then idly swim away. Above the surface of the water, however, the only other living creature that Vitalia Kahurangi can see is the cat curled up next to her.

All the hard service, the long hours, the highs and lows, she put it all in without grumbling, pursuing something greater than herself. Her smile is comfortable on her face among the well-earned lines and peaceful eyes. Now in her eighties and closing in on ninety, she knows that she still has years to go with modern medicine. Years of peace, a peace she did as much as anyone in the last century to bring about. Some already call the 24th Century the century that she made, the Kahurangi Era. What tosh. It hardly matters though. She has run her race and given to the Federation everything of herself it could use. In its turn the Federation has given to her these golden years and this little corner of the world to enjoy them in. A quiet return to Aoteroa to fish and consider her memoirs is all that she needs. When the Federation calls she can still answer, like when she hit the media circuits around the time of the Licori War. But she gives no thought to rushing off for a political career.

For there is no wealth like that of a satisfied mind.

-

Somewhere else on old earth, another set of mountains looms comfortingly. In their shadow two figures stare up at the nighttime skies to watch the stars wheel their way across the heavens from the hood of a beat up old hover utility, one bright and young and the other old and wise. The younger one will point to star clusters and has a list of questions as infinite as the universe around them. The older one just smiles and tells her niece about all the wonders that can be found among those stars, and maybe every now and again she'll leaven it with some of the terrors. Both are Sousa women, an indomitable line, but one of them is a name known to billions upon billions of sentients, scorned and hated by some, loved by many, and even dreaded by a few. Today, the other may as well be a phantom as far as the galaxy knows. But Valentina Sousa is certain that one day her niece will stamp her own mark upon the universe.

A mark that will exceed her own, she is certain, as she shares her love of space and poetry, and her warning to stay aboard ship until they have to physically crowbar you off. Carmel, her niece, soaks it all in. In a way, it is Carmel joining the nightly stargazing that helped Valentina realise the breadth of what she has accomplish. When she retired the Arcadian War was so close to mind with its constant struggles. The battles with the Licori and even the struggles with the Vulcans. It is one thing to win, quite another to be right. Some may subscribe that might makes right, but that is never the Starfleet way. No phaser battery ever conceived can turn wrong into right with mere nadions. Yet the years are kind and now Sousa can look upon her time with pride in all respects. She built on the work of those before her, and branched out in new ways. And those who came after have continued the path. So now she reclines beneath the stars that mean so much alongside the next generation.

She has been retired for ten years and the nighttime starfield is not one whit less beautiful than when she first returned.

-

You cannot reach the age of Hikaru Sulu in as hazardous a career as he has followed without more than one's share of empty chairs at empty tables. Gone but never forgotten, those tables echo with memories and words that still bring themselves to mind in the quiet moments when day is done and sleep beckons and the veil of the world is thinnest. They say there are old Captains, bold Captains, but no old, bold Captains, yet to you it seemed as though it is everyone but the bold Captain who would close their final chapters early, until even Kirk disappeared. Yet now he sits among the empty chairs and empty tables. He carry this silently, manifested in the familiar nods of those who know the roads he travels.

Yet there are empty chairs where the wounds are all too raw and the knife is far too keen. Where the mystery doles out the cruellest of hopes. Where did Demora go? What happened to the S'harien?

A civilian research cruiser is hardly something that normally likes to go this far afield, but Sulu is nothing but well connected, and there are tokens a father will cash and call a bargain that others would blanch at the thought of. A quantum singularity that came and went. A smattering of debris, like a fine dusting. "We're being pulled in."

That it should come to pass that the cruellest thing the service he loves can do to him happens nearly two years after retirement. So many of those he knows are lost with no final resting place. Kirk vanishing into space, Scotty and his ship disappearing never to be heard from again. It seems to him from time to time that the luck that saw his career as young d'Artangan is vampiric in nature. He remains while those around him do not die but vanish into the mists. But this time, here, with his own flesh and blood, Hikaru Sulu is not content with the empty chair by his side.

-

The dust billows blindingly across the room as groaning figures push aside the shattered building materials and try to figure out what in the blazes has happened to their day at work. Ruby-red beams lash out of the smoke as if it weren't there, and anyone carrying a sidearm slumps bonelessly into sleep. As the dust clears, a Public Security Directorate official scabbles up to her knees, looking around to try to find whatever tool or weapon could come to hand. But the dust from the first explosion is fading, and as she looks up she knows the safe house is far, far beyond defending.

Yet the nature of the assault strikes her as wholly absurd. Clearly elderly Andorians stride purposefully into the room, wearing unmarked uniforms and carrying a mix of phaser carbines that must be sourced from across the known galaxy. Yet despite their well-seasoned ages they are all sharp and on the ball, make their way with casual ease. Others enter the room, not just Andorians. A Rigellian, an Amarki, a Honiani, a few others; all of them share the one characteristic - being easily into the last quarter of their species' natural lifespan.

But when one last figure steps out into the middle of the now policed and secured safehouse, the PSD official blanches.

Shey ch'Tharvasse shoulders his phaser rifle and gives a broad, toothy grin. "Hello, girls, I'm back!"

Watching on from the all-encompassing computer network, a Singer recognises the man and screams red bloody murder at the Singer known as Tallael.
 
Did...did ex-Admiral Sulu just get sucked into a black hole mystery anomaly?

Shey seems like he's joined one of the commando raids on the HoH. Did we order any commando raids in the last anti-HoH vote?
 
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No, Tallael is the Singer who killed Shey's kid. So obviously the old man is out on a rip roaring rampage of revenge. >.>
Watching on from the all-encompassing computer network, a Singer recognises the man and screams red bloody murder at the Singer known as Tallael.
So was that an unsanctioned hit, or are the singers just upset that their assassination has apparently come back to bite them?
 
Okay, now I get that they are screaming murder at Tallael because they were the one who made Shey that hellbent.

My first reaction totally was "Wait, did I forget about some Singer we picked up who was thrown out of the collective on really bad terms and joined up with Shey on his fun filled vacation?".

That oneliner just didnt seem that Shey-like.
 
Remember people don't have agency to the Singers, so vengeance seekers are the fault of whoever didn't tidy up. In this case Tallael.
 
What.

I did not see that coming. So that's where Cartwright ended up at huh?

Isn't that a huge security risk though?

Rogers... interesting to see into his head like this. I like it.

The Kahurangi part was perfect. Nothing else to say about it, really.

The Sousa segment was very nice. Looking forward to seeing her niece in service.

Sulu... I too still have hope that Demora and S'Harien are alive, somehow, somewhere. Wormhole maybe. Good luck old man, and don't you dare die before Kirk returns.

Shey! Thought that you got possessed by a Singer somehow for a bit! That gave me a scare. But no, it's just Singers coming to deeply regret one of their tantrums. Carry on, and do no hesitate to ask for help.

A truly excellent update @OneirosTheWriter ! Thank you!
 
I very much like how this sets up the chance for a Sulu-Sulu team up to pop back into reality at a suitably dramatic point and save the day. Hikaru Sulu will never get tired of last minute rescues I hope.
 
Doubt it. Pretty sure they wiped all his passwords and clearances after he was caught for treason. Then after a quarter decade in jail, there's no info he can provide that's not horribly out of date.
Not quite how it works. He still knows plenty of secrets. What Starfleet did and did not do, limited knowledge of temporal incidents, etc.
 
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