• 5 Posts
  • 20 Comments
Joined 1 year ago
cake
Cake day: August 3rd, 2023

help-circle

  • I think this is why LLMs work, and some research backs this up. Humans actually don’t create new phrases for unique situations very frequently. Much or even most of what we say is existing word chunks stuck together.

    For example, look at this sentence. It communicated what I intended, but it is just a small idea conveyed with a standard text requiring no thought to generate. It could have easily been “Peregrine, with self reflection,” or something. Memes are a more obvious example of this.

    At some point in that imaginary culture maybe they just abandoned the original language since they could adequately communicate using only shared story references. Whether that part is realistic for an advanced technology culture maybe requires suspension of disbelief.

    For a more sophisticated take on this, there is a similar story inside of the Citadel of the Autarch by Gene Wolfe that asks some interesting questions. In that case, the language is specifically limited to ideologically-approved tracts in order to limit what the populace can think about, so as to be easier to control. However, the story told might be subversive.








  • I think I’m saying that mining on asteroids will probably never be profitable or realistic (with a possible exception of carbon, hydrogen, oxygen, nitrogen CHON once people are living on orbit). Mining on other planets might require understanding different geology and maybe different refining technology. Anything mined on a planet will likely stay there. But there just won’t be any ores on asteroids because they never had a chance to differentiate into higher and lower concentrations of various useful metals.


  • Metallurgical engineer here. One thing I never see talked about on this topic is how astreoids don’t have nearly the mechanisms for concentrating matals into ores like planetary bodies do.

    So while there may be a higher proportion of, say, iridium on an asteroid than the average of Earth, it is pretty homogenous. You would have to refine the whole thing to get a little bit of iridium. On Earth, it may be more rare on average, but Earth also concentrates metals into ores via heat, gravity and water action so that you can mine a small area to get what your want economically.

    Metal meteoroids are mostly iron, which is cheap on Earth and of little use in space. Aluminum, which is useful in space, is one of the most common elements on Earth and even higher on the Moon, but it’s only economically mined in tropical soil that had ages of water erosion. Titanium, different process but similar story.

    Given the economics of getting to where you want to mine, mining a non-concentrated rock, and then transporting it back to Earth’s for sale I just didn’t see any path for mining asteroids.

    Once there’s is an established human presence in space, there might be a reason to mine organics (CHON) but that is not now and not what people think of when they tout asteroid mining.