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Cake day: June 11th, 2023

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  • the ejecta themselves would definitely pose a danger, but air supply running out would probably kill you before they impact the moon.

    the distance between earth and moon is already significant, the angle shown in the picture is pointing away from the moon, most of the mass would stay in the same place due to gravity pulling everything back together, the orbital path the debris has to take in order to impact is gonna take multiple orbits for most of the debris, and only a fraction will impact on the site pictured.

    still dangerous, but not as immediately as one would think.

    the only significant projectiles would be a small portion of the debris just off-center from the exit crater (the sort of “cork” shooting out):

    • some of that mass would be going the right way
    • some of it will be going the right speed to arrive in time before air runs out
    • and some of that is gonna rain down roughly in the area the picture was taken at

    so it would only be a fraction of a fraction of a fraction that even has a chance of coming down onto the astronaut pictured, but that’s still gonna be enough to be dangerous.

    it’s also gonna take a couple days to arrive most likely; the debris is not gonna come straight at the moon, because by the time it makes it there, the moon would have moved and it would miss.

    a vanishingly small fraction will move fast enough to impact on a (mostly) direct trajectory. those impactors will still take at least a couple hours, even at close to relativistic speeds, and it’ll consist almost entirely of dust and tiny micro meteorites. the fast movers have to be tiny, because anything larger would be torn apart by the acceleration.

    (…actually I’m not sure any material apart from more exotic states of matter like nuclear pasta (which doesn’t exist on earth. yes, that’s an actual technical term) could even theoretically be accelerated to a significant fraction of c in the presumably less than a few seconds pictured above without being torn apart at the atomic level…and dense material experiences greater gravitational pull, so it would have a harder time reaching the moon…)

    in order to impact, the vast majority of the debris would need to move on parabolic trajectories, and most of those will take multiple orbits in order to impact.

    during those orbits, most debris will be pulled back onto earth, or in orbit around earth, since it’s gravitational pull is so much greater than the moons. add another fraction to the ones above ;)

    we’re still missing a bunch of considerations, but I’m gonna stop here.

    point is: as pictured above (apart from the impactor being impossibly dense) the danger to someone on the moon is mostly manageable and secondary to the danger of supplies running out.



  • eh…given the distance and the weird orbits it’s gonna take for the debris to actually hit…a few days probably?

    couple of days for the bombardment to hit the surface, and then it’s a game of statistics how long it takes for a direct hit or secondary ejecta to hit your landing site/base.

    probably a better idea to take all the fun pills all at once than to wait for that…

    actually, you can probably simulate this rather well in universe sandbox! ;)



  • you probably already know this, but for anyone else:

    The Cosmere Series (of which the Mistborn Saga is a part of) does heavily feature Sci-Fi as well as post-apocalypse themes alongside (mostly) fantasy (Sci-Fi: the sunlit man, tress of the emerald sea; post-apocalypse: Stormlight Archives, Yumi And The Nightmare Painter), which made me think OP was talking about this series specifically.

    In some of the other books it is mentioned that all of the powers originally came from a being called Adonalsium (basically God). what fuels all these manifestations of powers is called Investiture. Each Shard of Adonalsium manifests different Powers, Allomancy is just one of them.

    so it’s a unique mix of classic fantasy, sci-fi, and post-apocalypse genres in a single gigantic saga, in which the sci-fi and post-apocalypse themes are intentionally kept vague and in the background.

    highly recommend all of the other books!

    they are great in their own right, and also give a LOT of extra bits and peaces of the overall lore!

    what’s best about the series is, as you’ve already explained, the “hard-fantasy/sci-fi” approach to powers: all power requires some kind of source, everything comes from something.

    best to do the Stormlight Archives after Mistborn (either order works), then the rest; order doesn’t really matter, although i recommend Tress of the emerald Sea and The Sunlit Man to be read last, because they contain a lot of sci-fi lore, which is best enjoyed last (imho)

    also: Stormlight Archives Book 5 is coming relatively soon, i think it’s december?





  • generally a very good point, however i feel it’s important to point out some important context here:

    the pedophiles you’re talking about in your comment are almost always members of tight knit communities that share CSAM, organize distribution, share sources, and most importantly, indulge their fantasies/desires together.

    i would think that the correlation that leads to molestation is not primarily driven by the CSAM itself, but rather the community around it.

    we clearly see this happening in other similarly structured and similarly isolated communities: nazis, incels, mass shooters, religious fanatics, etc.

    the common factor in radicalization and development of extreme views in all these groups is always isolation and the community they end up joining as a result, forming a sort of parallel society with it’s own rules and ideals, separate from general society. over time people in these parallel societies get used to seeing the world in a way that aligns with the ideals of the group.

    nazis start to see anyone not part of their group as enemies, incels start to see “females” instead of women, religious fanatics see sinners…and pedophiles see objects that exist solely for their gratification instead of kids…

    I don’t see why molesters should be any different in this aspect, and would therefore argue that it’s the communal aspect that should probably be the target of the law, i.e.: distribution and organization (forums, chatrooms, etc.)

    the harder it is for them to organize, the less likely these groups are to produce predators that cause real harm!

    if on top of that there is a legally available outlet where they can indulge themselves in a safe manner without harming anyone, I’d expect rates of child molestation to drop significantly, because, again, there’s precedence from similar situations (overdoses in drug addicts, for example)

    i think it is a potentially fatal mistake to think of pedophiles as “special” cases, rather than just another group of outcasts, because in nearly all cases of such pariahs the solutions that prove to work best in the real world are the ones that make these groups feel less like outcasts, which limits avenues of radicalization.

    i thought these parallels are something worth pointing out.


  • you don’t have a choice when it comes to data collection:

    if it’s allowed literally every manufacturer WILL do it!

    see: the exact situation we’re currently in!!

    so, no, you don’t have a choice (other than buying an older model).

    this isn’t how “the market” does anything.

    there’s no downside to outlawing spyware in cars.

    and it hasn’t made anything cheaper, what the hell kind of cope is that??


  • i absolutely love it when it’s paired with manual transmission and an auto-break function:

    when you stop, for example at a red light, and press the break while standing still for a bit, it goes into auto-break mode.

    when you then release the clutch while in gear (neutral gets ignored), it automatically releases the hand break, so you can perform a hand break assisted start from standstill without having to touch the actual hand break!

    this is excellent when you’ve stopped at an incline, and generally really useful!

    but i get the skepticism…i was extremely skeptical at first too, but you get used to it quickly and then it feels weird when it’s missing or turned off in another car… there’s just no reason not to use this feature it’s simply great!



  • because barely anyone even knows about HUDs, since there are barely any vehicles in the “won’t cost you both kidneys” price segment with HUDs in them…

    …but yes, they really should be in every car. it’s just a no-brainer for safety, for the exact reason you said: simply having your speed right in your field of view alone is worth it!




  • the TSA is not “not perfect”; they’re a joke.

    it’s pure theater. they have basically no ability to detect actual weapons at all, hence why it’s a common problem when passengers arrive abroad only to find out they accidentally carried loose ammunition across borders.

    there’s a huge difference between “not quite perfect” and “completely and utterly useless waste of time, money, and resources”, the latter of which describes the TSA.

    IF they actually did anything useful at all, then fine, you have a point. but they don’t, which is why people are disagreeing with you.

    because in principle you’re right, that security is required and should be taken seriously…but the TSA isn’t actually providing security. they’re providing the appearance of security.


  • well, rimworld does have a focus on (micro)management and strategy!

    if your pawns are constantly down due to raiders, then you need better defenses! …or tame a herd of animals and release those at your enemies! (rhinos work very well for this!)

    there are tons of little optimizations you can make to efficiently run a colony. for example, social fights: you can keep those from happening by keeping the problematic pawns in different areas! or removing one or both of their tongues! or sending one on basically permanent caravan missions! etc., etc.

    this kind of deep strategizing, combined with the random bullshit the game throws at you, is mostly why people love rimworld!

    and mods… definitely get mods! that’s where the game reeeaaally shines!