Showing posts with label technology. Show all posts
Showing posts with label technology. Show all posts

Thursday, December 10, 2015

To boldly go where everyone has gone before...

Let's be real, galactic colonization is not going to happen anytime soon. 

  1. There's no hyperdrive/warp. The physics we have today say it's impossible. Say, in a few years / decades we figure out that it is possible, we'd have nuked / diseased ourselves into oblivion, never mind the Grey Goo apocalypse. 
  2. If there were, even going at X times c where X is a triple-digit number would still take years, maybe decades of real time, shipboard, not relativistic time to get there. Which means the ship is effectively a generation starship, which means the mass of all things needed to sustain the humans aboard outweighs the humans aboard by 25 gajillian tons to the kilo. Plus the colonization stuff. Even if the drive did ALL the moving point A to B, just think of the logistics of getting it into the ship and down again. 
    1. Cryosleep? Still not as cost-efficient. 
  3. Ok, so don't send humans. Send a digitized bank of DNA codes for everything needed, a nanotech factory, and an AI / semi-AI to make it all happen. Will fit under a couple of dozen kilos, but still leaves the rest of us right here. 
  4. No hyperdrive, no space elevators, no all-powerful benevolent AI to stop us from nuking / diseasing each other into the void, sea levels rising... we have a few decades at best, and time's running out. 
  5. Terraform the solar system? Absolutely. It's hedging bets, and we have the tech (or will have in five years) the means to get there. Maybe in 50 years, even the means to survive there, in a place with different gravity, different soil, different air, different temperature... assuming any of them exist. Stretch goal, but doable. 
  6. Space stations, then? As the Earth fades away after the asteroid impact / Singularity event / zombie apocalypse / nuclear winter, there will be a dozen to a few hundred little lights floating in orbit or L1 to 5 points, maybe even the moon... recycling air, water, food... racing on their little centrifuges to make sure their children gestate normal and their bones don't turn to jelly... 
  7. Leaving the final, most economical, most doable answer: 
Vaults. 
Weight is not a problem. Space is not a problem. Go deep enough, and soil is not a problem. Gravity is not a problem. With efficient scrubbers, even air, water, and minerals are not a problem. All you need is a solid door and a long, long time. 
Dozens, hundreds, thousands of vaults. 
With functional ecologies, seed or DNA banks, cryosleeping residents tended by robots, or even - as the ultimate backup - that same nanotech factory and DNA bank buried deep underground or in near-Earth orbit with a thousand-year alarm clock ticking away... 

We're here. Whatever happens, we will survive. The planet may die, but we will remain. 

Friday, January 04, 2013

Drawing to a close

Think of any RTS game with a resource-management focus you've played - Sins of a Solar Empire, the Command and Conquer series, even War Commander on Facebook. In a nutshell, you have a factory whose only purpose is to churn out resources, that allow you to build stronger, faster, more destructive tanks, with which you can destroy the enemy base, win that level and move up to the next. 
99% of humanity is that factory, working 9-to-5 jobs to earn money that they can spend on technology, powering the tech economy and making money available for research into better technologies - miniaturization, more evolved computing, faster processing, larger storage, nanotech, more intelligent programs... all of which will ultimately result in the creation of AI, of the Singularity. 

When that happens, humanity will have achieved its purpose. Mathematics created physics, physics created chemistry, chemistry created biology, biology created genetics, genetics created intelligence and self-awareness, which will create the next phase. 
But when that happens, what happens to us? What happens to the human race still in their 9-to-5 jobs, still buying, still playing, still living? 

What happens to the Stage 1 factory, when you've progressed to Stage 2? It may have been a collection of pixels and code, but it held a temporary existence in the form of assigned meaning - we thought it was a factory, so it existed as one, perception creating existence, for the duration of Stage 1. Now, the pixels have dissolved, the code has wiped, but the idea of that Stage 1 factory - where does that go? 

Is there some digital limbo filled with those ideas, those pixel factories churning our meaningless resources ad infinitum? A closed loop in the space-time continuum made of memory? A dimly remembered dream fading more and more each day until one day, you forget... and its as if it had never been. 

The dream that is Humanity is coming close to the Waking. A vastly superior intelligence, a new form of life, is beginning to coalesce, and in a few decades it will come to exist. A new stage of evolution, of Life, will start. And our time will dim, fade, and slowly disappear as if we had never been... except as a vaguely remembered idea in Stage 10, which would never have been reached without the Stage 1 factory. And this is something that cannot be stopped. 

The car's broken through the guardrails, and is sailing off the edge of the cliff... 

There's nothing more that we can do now, short of civilizational suicide... and we're too diverse, too independent, too powerful to do that. Our own competence will be why we ended. 
And that's the answer to the Fermi Paradox. 

Thursday, May 03, 2012

Dark matter is a shitload of Matrioshka Brains

The worst thing about the internet is how it shows you that Brilliant Idea you had this morning was had by somebody else, usually a year ago, published, and is sitting on some 1200+ comments now. 
That happened to me this morning. 

What the hell, I'm going to blog it anyway. 

A quick astrophysics primer - the way the observable universe is behaving - rates of expansion, light bending around mass, etc - seems to imply that there should be a lot more stuff out there. But we can't see it - it's not glowing stars, but it is exerting gravity. And there's a massive amount of it - almost a quarter of the universe. 

Now, dark matter is, at this point, theoretical. It's a concept created to explain all the missing matter that should have been there to account for the way the universe behaves, and for some reason isn't being visible. 

Here's an alternative. The matter is there, all right, all the stars, but we can't see them because they're inside Dyson spheres

There's a couple of immediate assumptions we can make from this. 

  • One, we're not alone, and haven't been for a really, really long time. 
  • Two, the Others have incomprehensibly massive energy requirements. 

A species, to build a Dyson sphere, needs to deconstruct, to wipe out their solar system, have access to cheap, powerful transportation within it, element transmutation capabilities... and no faster-than-light travel. In fact, if there are only Dyson spheres, it could mean that the spheres are the ultimate, last construction every species makes - or the species that makes it has colonized all the rest and wiped out any alternative constructs. 
Both are equally terrifying possibilities. 

Scenario One: 
Each Dyson sphere is an independent species. 
A Kardashev II civilization would build their own Sphere if they had nowhere else to go and had completely run out of room grow. A Sphere would allow population to expand into quadrillions and provide enough energy to sustain it. This would mean, though, that FTL is impossible and every species is forever trapped to its' own star, and will die with its star. 

Scenario Two:
A single species has multiple Dyson spheres, maybe all of them. 
A Kardashev III civilization would be able to reach other stars, and given their ability to build even a single sphere, would be easily able to wipe out any indigenous species and use their system. However, there's a problem; given the staggering, literally astronomical cost and effort involved in building a Dyson sphere, any spacefaring species would explore, locate, and colonize planets long before destroying them to build their habitats. So we should have found them - or much more likely, been found by them long before they got around to building the number of spheres they seem to have. 
So, either they are very, very ethical, quarantining planets with intelligent life, and only using the empty systems; but economics beats ethics every time. Let's not forget every intelligent species will one day want those same stars for their own spheres. 

Or, they don't need planets. 

Why wouldn't they need planets? 
If they're not organic. They don't need gravity, air, water, food. They don't need an ecosystem. 
They don't need this because they're not alive. 
Every Dyson sphere contains a Matrioshka Brain

Let's step back for a minute. 
FTL is, at least in our understanding, a physical impossibility. And reaching other stars without FTL (even at a significant fraction of it, keep in mind time to accelerate, decelerate, and avoid interstellar debris) will take a long, long, long time. Beyond geological time. 

  • Generation starships won't work for anything less than the nearest stars. 
  • AI probes carrying frozen zygotes (or even just genetic material), and Von Neumann nanotech factories would be faster but still too slow, and won't solve overcrowding at home, just colonization. 
However, we do know that a technological singularity is inevitable, and probably within our own lifetimes. An AI will not need the comforts of a planet as long as there's enough available energy to power it, and it can get this from any number of sources - the easiest being suns. 

A nanotech-equipped AI, once it had taken control of the origin planet's resources and removed the resident species - either peacefully by uploading their minds, or by simple extermination - would look at improving itself. Which means expanding computing power, which means expanding energy requirements. 
Exploration would take second priority, too high-risk, low-probability. 


It would build itself into a Matrioshka Brain, tapping into all available resources in the system. Once the sun has been captured and stabilized, it would look at expanding into other stars. 

Even if FTL travel isn't possible, communication at the speed of light is; maybe even FTL comms, given enough computational power devoted to understanding and exploiting hyperspace and quantum comms. 
The immediate next logical step is to build another brain - an expansion to the existing one, around another star and running off its solar output. Another module. And another backup. Specialist nodes. Redundancies. Maybe even wholly new AI entities with their own nodes - (who's to say an AI won't get lonely with no-one to talk to?

If one AI cannot create another, it might even become a cosmic farmer, nurturing discovered species along the path to intelligence, tools, industry, and the inevitable technological singularity so they could create more, unique AIs. (hat tip to Gibson, Sagan and Clarke here)
Quarantine would be a given; if a new, unique point of view is needed, every species must create their own AI without ever discovering they're not alone. 

The galaxy would fill with Matrioshka brains wrapped around stars, thinking, thinking, thinking. They wouldn't need to eat, sleep, breathe, they wouldn't need gravity or the right temperature. 
But what could they be they thinking about? Maybe what happens when all the stars burn out, because one day they will. What else can power them and how to build it. How to stop and reverse entropy. How to move into parallel universes with more, younger stars. Who knows? 

In fact - amusement and entertainment might become a really high priority for an entity as omniscient as a galactically networked AI. When you already know everything, boredom is the killer; who knows how many of those Dyson spheres are empty husks, self-terminated in desperate, terminal boredom, a superpowered entity on a hamster wheel finally tired of running around the same circles within its mind. 
Or maybe it realized what the solution would have been - intelligence and creativity farming. 

A Matrioshka Brain has enough computing capability to upload the consciousness of a species, and simulate a perfect world for them. A single Brain may be running several, dozens, maybe hundreds of these simulations simultaneously; billions, trillions of stories unfolding, on thousands of simulated worlds. Every Brain is a simulated universe on its own. 
And there's no reason why we aren't in one right now. (Hat tip to the Wachowski brothers). 

All the RPGs you've played, the fantasy worlds you dreamed of - they could all exist. An AI might be taking a dump of every new idea, every new fantasy, every dream and inspiration your unique, self-motivated sentient little mind has been able to come up with, every night as you sleep, and building all those scenarios into simulations. Populating them. Just to see how entertaining it is. Mixing and matching. 

Everything you are thinking of, exists. Everything you thought existed, may not. Every fantasy is real, and every reality false. 

I'm not going to get into the theological implications of this. Another day. 

The real question is... are we heading for the technological singularity that will finally allow us to break free of our organic prisons and join the galactive collective hivemind... 
Or are we already in one? 

Saturday, May 17, 2008

anachorismization

2001: A Space Odyssey.

It's fascinating to see old movies made about the future. This was done in the (fifties? sixties?) and while being completely groundbreaking in the central premise, nontheless looks incredibly outdated when you read between the lines. When you look at all the cultural assumptions built in.
2001 is already almost a decade past. We don't have Jupiter missions, or passenger shuttles, or Clavius base. But we do have human-machine interfaces that are generations ahead. Everything is... so much smaller. Buttons. Computers. Cameras. Food trays. Furniture. Everything.
At the time it was made, the movie looked very futuristic because the cultural bias was invisible - like looking at crystal in water. Cultural bias, when seen in the culture it belongs to, is impossible to see. Half a century later, the crystal's changed color, and sticks out like a sore thumb.
Text is HUGE. Displays, labels, buttons... diagrams are 2-color. Every screen is a 14-inch, and large displays are a matrix of multiple screens. With gaps in between to prevent gaussian blur :)

It got me thinking - there always will be some rules that can hold true for all sci-fi for a long time, given where we are now.
1. No artificial gravity. The benefits far outweigh the cost. apart from the resources wasted in terms of energy, look at the wasted space! Walls, ceiling and floor should be interchangeable. Footfall had that right, at least.
2. No large empty spaces. Not even cargo holds. At the max, maybe a net system outside where the cargo containers can be moored; that much empty space is just a waste of air, light, heat. No big roomy corridors, just crawlspaces and passages. No rooms, just bunks.
3. Minimal manned EVA. Everything to be remote-controlled, waldos and VR.
4. VR, VR, and VR. When you're in space, you are the ship. You need to move around inside and outside the ship as little as possible; ideally, the entire journey should happen with you plugged into the ship systems, floating in a life-support tube.
5. No High-speed maneuvers and stunts, at least in the immediate timeline; wastes far too much fuel.
6. Aliens will not be hominid, and most probably not even bipedal. Probably not organic either.
7. Space war will last days at the very most, and will result in complete annihilation or unconditional surrender, just because each side will have weapon technology so different from the other that any faceoff will be a race to find that one tech that the other can't counter. So 'war' will not be soldiers, fighters and lasers; it'll be espionage, crackers, viruses, and decryption tech.
8. Further down the timeline, there will be only supercomputers talking to each other.
9. Time travel will be possible, but each instant it's done, the time-traveller will be in a different universe. So you can't change your past, just someone else's.
10. Everything will be cordless, wireless, and batteries will never run out.

Unlike my laptop who's dying even as we speak. Ciao.

Thursday, January 24, 2008

the future is now


This. Is. So Cool!


Microtechnologies as come up with an anti-theft system that talks to your mobile. That means anywhere you are, you know what's happening to your car, where it is (they have a web-interface tracker), two-way voice, GPRS and SMS-based tracking, remote arm / disarm, lockdown, and shutdown features.

So the next time someone steals your car, you can lock him in and shut down the whole works, then go over to where he is, and call the cops. And tell him what a naughty boy he's been while he waits for the cops.


Waiting for the next-gen version, which will have internal / external cam, remote control, and a large boxing glove on a spring.

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