Contact me on matrix chat: @nikaaa:tchncs.de

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Joined 2 years ago
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Cake day: January 12th, 2024

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  • humans are a virus and the earth has a fever

    now one might be tempted to say that that’s a bad thing, but in my experience you can also catch a fever when you’re really positively excited about something. and virus … well, let’s say, to me it’s not an all-negative term either. knowledge is a virus (i wish i could link to an earlier blog post of mine about this, but unfortunately i never wrote down my ideas about this). basically, knowledge spreads just like a virus, it’s immaterial, consists of information, and has the typical replication patterns of viruses, including being subject to mutation and selection.


  • the thing about an atmosphere is that it protects you from a lot of radiation. like, alpha radiation makes a significant part of the radiation hitting you in outer space, but it’s too weak to go through a sheet of paper so it’s also gonna be stopped by an atmosphere of a planet. and the same goes for beta radiation, which is also easily stopped by an atmosphere. and that’s significant because it protects you from like 99% of all (particle) radiation.

    on top of that an atmosphere replenishes volatile chemicals like CO2 and H2O all the time (or at least some volatile molecules) and that’s nice-to-have.

    Also important is the heat capacity of the atmosphere. Even if the atmosphere is thin, it makes a lot of difference. I should go about calculating the difference that mars’ atmosphere makes in terms of temperature sometimes. Like, how hot/cold would it be in the day/night if it didn’t have an atmosphere. I guess it would be more extreme, but by how much? I should look into that sometime.


  • like, i remember doing the maths a while ago and figuring out the following:

    a planet needs to be in a certain mass range (from minimum mass to maximum mass) to be attractive to long-term human setttlement.

    • the minimum mass is given because the planet can only hold an atmosphere if it has a minimum mass of around 10^23 kg because only then the gravitational potential is large enough to prevent the atmosphere from floating away.
    • also, the planet has to have less than a maximum mass, sothat a spaceship can still lift off from that planet. that’s because fuel consumption scales exponentially with planet’s mass, and if the planet’s mass is too big, basically you “hit a wall” in the fuel-over-planet-mass diagram where it simply becomes practically impossible to lift off from that planet ever again. that maximum mass is around 10^26 kg.

    it is remarkable that earth is in this narrow mass range. there’s only a handful of objects in the solar system who are in this mass range: earth, mars, venus, the 4 biggest moons of jupyter, and the biggest moon of saturn (i hope i didn’t forget anyone). that’s why i think that these objects are especially interesting for long-term human settlement.


  • fun fact: in medieval astronomy/astrology (these things were not yet distinct back then), earth was indeed “mid” as it was the middle of the planets; all other planets circled around it.

    later in early modern age, earth was “mid” again but in another sense (the planets circling around the sun was accepted by then). uranus and neptune were not yet discovered, so there were only 7 known objects (+ the moon) in the solar system: sun, mercury, venus, earth, mars, jupyter, saturn. again, earth was exactly in the middle of that order.







  • “We’re not far from a world — I think we’ll be there in three to six months — where AI is writing 90% of the code. And then in 12 months we may be in a world where AI is writing essentially all of the code.”

    They haven’t mastered the true Zen yet. The bad programmer writes a lot of spaghetti code that is impossible to debug and fix, so it has to be rewritten. The good programmer writes a few lines of efficient code and is done with the work. The enlightened programmer realizes this feature already exists in another program and doesn’t need to be reproduced. The enlightened programmer writes no code.

    These CEOs are very far from enlightened, because they try to increase the amount of code that is written, rather than decrease it.







  • to summarize:

    • activists don’t like the US’ dominance in tech clouds and services, obviously
    • reducing the effect of US tech in europe would mean that smaller european companies have a chance at competing as well
    • national security hawks don’t like having essential services depend on the US either

    in the past, the US forced everyone to comply with US tech because the US was economically too powerful to deny requests to, but now that is changing because US economy is not so important internationally anymore, due to tariffs but also because US consumers are becoming poorer and therefore less important as a consumer market, so it’s easier to ignore the US and their requests.