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Cake day: June 9th, 2023

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  • Paints will run you into the rabbit hole of finishing processes with layer lines. Also most paints are formulated for adhesion to steel. This has to do with the anticipated rate of expansion due to temperature. ABS is typically used for plastic automotive parts like trim and bumper covers, mirrors, door handles, etc., because it has the closest temperature expansion properties to steel.

    In automotive painting, ABS can accept most of the same finishing processes as panel work, while any other types of plastics require an adhesion promoter layer. The most common adhesion promoter in the USA is called bulldog. It can be bought in spray cans but as of 15+ plus years ago when I owned my auto body shop, the spray cans are terrible at inconsistent spattering and useless unless you know some very special techniques that involve pro paint spraying equipment.

    With PLA, you will likely have success painting with model paints. Most of these never fully cure like an automotive class 2k catalyzed hard surface finish. The soft state of these enamel paints creates its own unique issues. Any kind of higher end paint is likely to have adhesion issues due to handling and temperature fluctuations where the PLA moves differently than the overlying shell and the tension eventually breaks the mechanical bond of the coating. It is an option though. High level finishing with layer lines is a very intensive process to do at a high level. I actually prefer a similar process in total using ABS and polishing, but that is a whole different can of worms. A little vibrating pen sander makes a big difference when it comes to sanding. I used to tell people automotive paint and body repairs are 99.999% sanding and prep. It is impossible to really convey the amount of sanding required for perfection, but this is where real perfection happens and there are no shortcuts.

    Alternatively, if you get a bunch of filaments, and you do a lot of prototyping, just use the oddball colors for iterative work on designs. This is what I do. Filament colors is likely both the most cost and time effective option if you are okay with the look of layer lines.









  • I didn’t see one, but I didn’t look very hard. It wasn’t in the video when I watched. I’d say $200 is probably way low. That much hardware, bearings, ardy, modules, a few spools, RC controller, wires, connectors, a shield, components, lights, motors, servo… Probably falls somewhere around the $500-$800 range, if you try to buy them all at once and not the piecemeal and partial collections most of us have already. In all likelihood most of us will need at least half that spend to get everything needed. If one did this with Adafruit, McMasters, a US board house, and high quality filament, it could easily top $1k.


  • The conundrum of echo chambers is that the term is a misnomer. It is tribalism. We all want to belong in our tribe by animal instinct. We are not fully capable of belonging to a tribe that encompasses all minutia within the human experience. We need tribalism for so many reasons beyond conflict such as the emotional and social support it provides. The primary issue is how these tribes evolve and the measures in place to moderate them at multiple levels. There are many dangerous tribes. So the question is who is doing the steering and what are their motivations. This is a simulacrum of democracy. Is your tribe steered by its members, or by some individual? Is leadership done by a meritocracy, cronyism, anarchism, or authoritarianism. This is why I say, “a bad mod/admin is a visible mod/admin.” A democratic leader is one that serves the people. It is like a job of a CEO that does a daily job as the anonymous janitor. If the leader of a tribe is visible, the steering is active, and the ongoing motivations of such individuals must remain an active concern because they are dangerous.









  • So the energy required to exit the gravity wells of planets is the main issue. I'm going with the assumption that infinite energy expansion is a fallacy. This is a post fusion era, but the expenditure of unrecoverable resources are a major faux pas. Culturally, they are free to utilize anything available, but expending the collectively held resources of a star system for anything short of an action in the best long term interests of said collective is unthinkable. This is a distant lesson from the stone age of silicon before Wild Earth and the migration to Cislune.

    In my writing I’ve come up with the basic backstory of Sol, but my main focus is on a randomly picked colony around Alsafi.

    It is helpful to imagine how the generation ships were equipped with the seeds needed to start a colony, like what kinds of ultra rare resources would be taken with them, and what would be a top priority upon arrival. One of three rep drones would likely slow around the outer stellar halo field to start operations and infrastructure required for resources beyond the elemental snow lines. The main question being resource density and fusion based propulsion.

    Fusion is limited by enormous scale and the heat makes it a major challenge. The ultra exotic engineering materials required are considered atrocious because of the enormous amount of waste, heat, and how long even the recoverable byproducts take to incorporate into a sustainable elemental cycle. There is very little time pressure but there is extreme sustainability and conservative long term stability pressure.

    I’m constraining the generation ships to 7 parsecs in travel distance due to pragmatic engineering constraints (baseless handwaving magic really, I’m just targeting the number of type G stars available, mostly because I find the lack of present lack of attention on the only type of system known to host life atrocious).

    Many gen ships and colonies fail. The first geny ship to Alsafi is lost in transit. The second has a series of unfortunate events that delay the first cylinder construction. After ten generations the entire human population is sterile without gravity.

    Indeed, time is not a major factor in most situations. Lifespans are on the order of a half millennium. I want to convey that our size and slice of time is okay to appreciate against a larger canvas and doing so is the only path to a greater future. The present is a primitive stone age and nowhere remotely close to some techno end game. In the present we have far too much hubris and a delusional grandeur that lacks a cultural perspective on our place in the future timeline. We are only a link in a chain.

    The one constant in civilizations over time is increasing complexity and the tools needed to wield it. The interesting story is what becomes possible when that complexity is accessible. There is no magic in that story, techno or otherwise. The tools of that age are all around us right now, or at least the building blocks to make them. We simply lack an understanding. Harnessing the complete potential of biology and the way nature creates balance and stability is something we have only scratched the surface of observing, let alone harnessing.

    The minutiae become interesting to me, like the logistics, complex social hierarchy after the primitive accruing of the fundamental means of survival, and the lives of average unremarkable persons with their perspective self awareness and nuances brought to light in a critique of the present. These need to be grounded in the conservative reality of an existence where the main differences between then and now are the expansion of accessible complexity and a massive growth in the available wealth.

    I think we are likely already able to access and are using many niche materials and processes that the future will abandon as untenable. I see this as both an immense expansion of technology and a techno minimalism. Life is appreciated for exactly what it is. There is no guarantee.

    Like, valuing the lives of a few astronauts going to the Moon at billions of dollars in redundancy is ludicrous. You will find many volunteers willing to take far greater risks for far less reward on Earth. These are a resource too and naïveté of this resource is stupidity. We are not a race of demigods like is common in present cultural religious thought. Life is precious, and no one will force another into increased risk, but no one has to force another when the full spectrum of people are considered. A suitable person or group will always volunteer to take on the risk.

    So like, when I’m curious about nitrogen, I’m interested in how it might be sourced and moved around in the most stable and efficient way possible. There are likely large networks of transfer orbiting infrastructures and pod like bubble ecosystems made to process and transport resources. Biologically sequestering resources and the solid state of matter are the primary forms of storage. Like the mountains inside the habitat are the primary source of oxygen storage.


  • Some cool ideas. Thanks for sharing. Perhaps it is my perspective from isolation due to physical disability, but I think generation ships are way over blown in the negatives. People always adapt to their environmental challenges. Someone raised on a gen ship would likely post You Duct videos on the terrifying openness of planetary life and the unimaginable fear of getting lost in any direction of endless wilderness and monstrous creatures like squirrels, mountain goats, and deer. The idea of nothing securely above you and unconstrained spaces would be terrifying.


  • you definitely want to have an outer shell, or this thing is going to go the way of the titanic.

    Most definitely, but I'm okay with that, it is part of our real story too–that whole "engineering is only about good enough to get by."

    So I’m on a bit of a different plane overall. My main motivation is setting up a plot to point out most of our stories about AI are a machine god mythos with terrible philosophical conclusions. By the same logic in these stories of AI leading to inevitable human extinction, the Earth must be a monoculture of of one organism, and all smarter siblings murder their lesser competing kin.

    I’m taking Asimov’s ideas of an integrated Daneel and going much further by removing Daneel’s godship. Then I’m making a story of alignment and the volatility of humans.

    I’m also trying to imagine a real post scarcity society without it being utopian or dystopian. The biology as a technology is not intended to explore a circus show. I think I can get around that using the limitations of staying within the elemental cycles balance.

    You’re right, my casual and very human memory of 1b versus 1m was foggy and I think that Cool World’s video was the primary one I was thinking of, but it could have been from Anton Petrov too. It isn’t really important. The pressures could be due to a worst millennia in a million event. This will among nt to nothing anyways. I have no means, qualifications, or connections and the world is geared to exploit those dumb enough to try. There are more billionaires than there are people making a living wage off of writing.

    I’m talking in deep time anyways. My notes and graphs have a date stand in on 420,421 After Fusion (AF) as the date because it is easy to remember.

    The generation ships are possible because of the largest project of a broken ring structure around the orbit of Mercury. This creates the ships and enough antimatter to accelerate and decelerate on the other side. The story is constrained to a few millennia during the first interstellar migration where Sol is the hub for everything.

    I call planets useless gravity prisons of gravitational differentiated scarcity, and completely uninteresting. I also limit colonies to g-type stars.

    The rep drones are setting up the resource acquisition and infrastructure required to support the colony. I take the stance that the culture looks at waste very differently. Heat is a major resource commodity. Any waste product is considered unacceptable in almost all circumstances. I’m trying to avoid anything magical and staying very conservative about what and how advancement happens. There must be a reason why things exist as they do. This is a world where people are stewards of the future and take full responsibility for the entire legacy they leave.

    Wild mutations have major negative consequences generations later if not more immediately. This is a reason humans are dangerous, for their tendency to do rogue nonsense like this, while more stable and known mechanisms are preferred.

    One of my biggest curiosities ATM is how to source nitrogen to breathe. What are the rarest resources in terns of the solar wind and stellar evolution of a system? Nitrogen seems to get blown away with a very distant ice line that should largely determine its availability right? It doesn’t seem to form compounds with staying power on any smaller objects.

    Anyways thanks for the insights on sounds.