Alex Kreitzberg

@AlexKreitzberg

For every proof, there exist ideas, that enrich life.

Seattle, WA
Vrijeme pridruživanja: veljača 2011.

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  1. proslijedio/la je Tweet
    4. velj

    Differences in perceived speed

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  2. 4. velj

    But learning a general skill is meaningful because it opens you up to new experiences. Anyways, I really enjoyed Getting Over It. But I'm not sure every experience necessarily gets better by making it harder. Harder things should do something for us.

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  3. 4. velj

    The consequences, not the challenges, in general gives activities meaning. The challenges in Getting Over It become most meaningful when you fail. Because to win you have to climb the mountain again.

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  4. 4. velj

    In paper's please, the meaning is conveyed through the struggles of the players family. A failure to meet a challenge could mean a family member, or a stranger dies. The challenge is a puzzle, whose results have consequences on people's lives.

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  5. 4. velj

    The challenge does make it meaningful, and this meaning is underscored when a failure sets you to the beginning, because you understand and then feel the climbing your about to do. But there are other meaningful experiences.

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  6. 4. velj

    So, I reached the top of the mountain once in Getting Over It with Bennett Foddy. The game has various opinions thrown about, including "Climbing the mountain gives it meaning" and "Quickly consumed stuff is fickle". These almost say only challenging stuff is meaningful.

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  7. proslijedio/la je Tweet
    3. velj

    I told my kid (who’d asked about absolute value signs) “They’re just like parentheses so there’s never any ambiguity,” but then I realized that things are more complicated; for instance |-1|-2|-3| could be 5 or -5. Has anyone encountered ambiguities like this in the wild?

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  8. proslijedio/la je Tweet
    14. sij

    What has exactly four letters, definitely has ten letters, and undoubtedly has eleven letters.

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  9. proslijedio/la je Tweet
    13. sij

    Hilarious and brilliant prime number shenanigans by Gilles Esposito-Farese:

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  10. proslijedio/la je Tweet
    12. sij
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  11. proslijedio/la je Tweet
    11. sij

    Does reality get on your nerves? Do you sometimes wish there was nothing at all? Then this is the thread for you! Read on, and I'll show you how to prune your ontology down to nothing. It's easy and won't harm anyone or anything. Ready? /1

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  12. proslijedio/la je Tweet
    11. sij
    Odgovor korisniku/ci

    A 3D proof without words for the sum of the first odd numbers : 1+3+5+...+(2n-1)=n²

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  13. proslijedio/la je Tweet
    10. sij
    Odgovor korisniku/ci

    Digression: That argument about falling bodies is one that Galileo deployed in his "Dialogues Concerning Two New Sciences", and philosophers are still arguing about its validity: (1/n)

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  14. proslijedio/la je Tweet
    8. sij

    This is a Neural Network Guitar Pedal that can turn a Guitar into a Piano in real time! I'll have a video soon explaining how it works and the year long journey to get here, but you can find the source code and an experimental web version here! 🎸➡️🧠➡️🎹

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  15. proslijedio/la je Tweet
    9. sij

    Over 100 people showed up to the first MIT class on Programming with Categories - taught by , David Spivak, and Brendan Fong! You can watch this and all future classes on YouTube. Later they will write a book. (1/n)

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  16. proslijedio/la je Tweet
    9. sij

    Robert MacKay's Chaos Machine. Its configuration space is a genus three surface. The dynamics of the machine are equivalent to geodesic flow on the surface, which is Anosov, hence chaotic.

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  17. proslijedio/la je Tweet
    8. sij

    The first lecture by David Spivak about sets and categories in Programming with Categories is out:

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  18. proslijedio/la je Tweet
    8. sij

    Tubby time for the aqua pups

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  19. proslijedio/la je Tweet
    8. sij

    Tim Hosgood, Ryan Keleti and others have now translated Grothendieck's "EGA1" into English! You can nab a free copy here: EGA is Éléments de Géométrie Algébrique, where Grothendieck reformulated algebraic geometry using "schemes". (1/n)

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  20. proslijedio/la je Tweet
    5. sij
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